Backed out changeset d89917892e22::d89917892e22

29 files changed, 872 insertions, 1952 deletions

diff --git a/gtests/google_test/gtest/include/gtest/gtest-death-test.h b/gtests/google_test/gtest/include/gtest/gtest-death-test.h
index 20c54d869..957a69c6a 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-death-test.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-death-test.h
@@ -26,14 +26,14 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 //
-// The Google C++ Testing and Mocking Framework (Google Test)
+// Author: wan@google.com (Zhanyong Wan)
+//
+// The Google C++ Testing Framework (Google Test)
 //
 // This header file defines the public API for death tests.  It is
 // #included by gtest.h so a user doesn't need to include this
 // directly.
-// GOOGLETEST_CM0001 DO NOT DELETE
 
 #ifndef GTEST_INCLUDE_GTEST_GTEST_DEATH_TEST_H_
 #define GTEST_INCLUDE_GTEST_GTEST_DEATH_TEST_H_
@@ -99,11 +99,10 @@ GTEST_API_ bool InDeathTestChild();
 //
 // On the regular expressions used in death tests:
 //
-//   GOOGLETEST_CM0005 DO NOT DELETE
 //   On POSIX-compliant systems (*nix), we use the <regex.h> library,
 //   which uses the POSIX extended regex syntax.
 //
-//   On other platforms (e.g. Windows or Mac), we only support a simple regex
+//   On other platforms (e.g. Windows), we only support a simple regex
 //   syntax implemented as part of Google Test.  This limited
 //   implementation should be enough most of the time when writing
 //   death tests; though it lacks many features you can find in PCRE
@@ -161,7 +160,7 @@ GTEST_API_ bool InDeathTestChild();
 //   is rarely a problem as people usually don't put the test binary
 //   directory in PATH.
 //
-// FIXME: make thread-safe death tests search the PATH.
+// TODO(wan@google.com): make thread-safe death tests search the PATH.
 
 // Asserts that a given statement causes the program to exit, with an
 // integer exit status that satisfies predicate, and emitting error output
@@ -199,10 +198,9 @@ class GTEST_API_ ExitedWithCode {
   const int exit_code_;
 };
 
-# if !GTEST_OS_WINDOWS && !GTEST_OS_FUCHSIA
+# if !GTEST_OS_WINDOWS
 // Tests that an exit code describes an exit due to termination by a
 // given signal.
-// GOOGLETEST_CM0006 DO NOT DELETE
 class GTEST_API_ KilledBySignal {
  public:
   explicit KilledBySignal(int signum);
@@ -274,54 +272,6 @@ class GTEST_API_ KilledBySignal {
 # endif  // NDEBUG for EXPECT_DEBUG_DEATH
 #endif  // GTEST_HAS_DEATH_TEST
 
-// This macro is used for implementing macros such as
-// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
-// death tests are not supported. Those macros must compile on such systems
-// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
-// systems that support death tests. This allows one to write such a macro
-// on a system that does not support death tests and be sure that it will
-// compile on a death-test supporting system. It is exposed publicly so that
-// systems that have death-tests with stricter requirements than
-// GTEST_HAS_DEATH_TEST can write their own equivalent of
-// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED.
-//
-// Parameters:
-//   statement -  A statement that a macro such as EXPECT_DEATH would test
-//                for program termination. This macro has to make sure this
-//                statement is compiled but not executed, to ensure that
-//                EXPECT_DEATH_IF_SUPPORTED compiles with a certain
-//                parameter iff EXPECT_DEATH compiles with it.
-//   regex     -  A regex that a macro such as EXPECT_DEATH would use to test
-//                the output of statement.  This parameter has to be
-//                compiled but not evaluated by this macro, to ensure that
-//                this macro only accepts expressions that a macro such as
-//                EXPECT_DEATH would accept.
-//   terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED
-//                and a return statement for ASSERT_DEATH_IF_SUPPORTED.
-//                This ensures that ASSERT_DEATH_IF_SUPPORTED will not
-//                compile inside functions where ASSERT_DEATH doesn't
-//                compile.
-//
-//  The branch that has an always false condition is used to ensure that
-//  statement and regex are compiled (and thus syntactically correct) but
-//  never executed. The unreachable code macro protects the terminator
-//  statement from generating an 'unreachable code' warning in case
-//  statement unconditionally returns or throws. The Message constructor at
-//  the end allows the syntax of streaming additional messages into the
-//  macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH.
-# define GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, terminator) \
-    GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
-    if (::testing::internal::AlwaysTrue()) { \
-      GTEST_LOG_(WARNING) \
-          << "Death tests are not supported on this platform.\n" \
-          << "Statement '" #statement "' cannot be verified."; \
-    } else if (::testing::internal::AlwaysFalse()) { \
-      ::testing::internal::RE::PartialMatch(".*", (regex)); \
-      GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
-      terminator; \
-    } else \
-      ::testing::Message()
-
 // EXPECT_DEATH_IF_SUPPORTED(statement, regex) and
 // ASSERT_DEATH_IF_SUPPORTED(statement, regex) expand to real death tests if
 // death tests are supported; otherwise they just issue a warning.  This is
@@ -334,9 +284,9 @@ class GTEST_API_ KilledBySignal {
     ASSERT_DEATH(statement, regex)
 #else
 # define EXPECT_DEATH_IF_SUPPORTED(statement, regex) \
-    GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, )
+    GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, )
 # define ASSERT_DEATH_IF_SUPPORTED(statement, regex) \
-    GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, return)
+    GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, return)
 #endif
 
 }  // namespace testing
diff --git a/gtests/google_test/gtest/include/gtest/gtest-message.h b/gtests/google_test/gtest/include/gtest/gtest-message.h
index 5ca041614..fe879bca7 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-message.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-message.h
@@ -26,9 +26,10 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 //
-// The Google C++ Testing and Mocking Framework (Google Test)
+// Author: wan@google.com (Zhanyong Wan)
+//
+// The Google C++ Testing Framework (Google Test)
 //
 // This header file defines the Message class.
 //
@@ -42,8 +43,6 @@
 // to CHANGE WITHOUT NOTICE.  Therefore DO NOT DEPEND ON IT in a user
 // program!
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_GTEST_MESSAGE_H_
 #define GTEST_INCLUDE_GTEST_GTEST_MESSAGE_H_
 
@@ -51,9 +50,6 @@
 
 #include "gtest/internal/gtest-port.h"
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 // Ensures that there is at least one operator<< in the global namespace.
 // See Message& operator<<(...) below for why.
 void operator<<(const testing::internal::Secret&, int);
@@ -200,6 +196,7 @@ class GTEST_API_ Message {
   std::string GetString() const;
 
  private:
+
 #if GTEST_OS_SYMBIAN
   // These are needed as the Nokia Symbian Compiler cannot decide between
   // const T& and const T* in a function template. The Nokia compiler _can_
@@ -250,6 +247,4 @@ std::string StreamableToString(const T& streamable) {
 }  // namespace internal
 }  // namespace testing
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 #endif  // GTEST_INCLUDE_GTEST_GTEST_MESSAGE_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest-param-test.h b/gtests/google_test/gtest/include/gtest/gtest-param-test.h
index 1e22f6850..d6702c8f1 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-param-test.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-param-test.h
@@ -31,13 +31,13 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
+// Authors: vladl@google.com (Vlad Losev)
+//
 // Macros and functions for implementing parameterized tests
-// in Google C++ Testing and Mocking Framework (Google Test)
+// in Google C++ Testing Framework (Google Test)
 //
 // This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
 //
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
 #define GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
 
@@ -79,7 +79,7 @@ TEST_P(FooTest, HasBlahBlah) {
 // Finally, you can use INSTANTIATE_TEST_CASE_P to instantiate the test
 // case with any set of parameters you want. Google Test defines a number
 // of functions for generating test parameters. They return what we call
-// (surprise!) parameter generators. Here is a summary of them, which
+// (surprise!) parameter generators. Here is a  summary of them, which
 // are all in the testing namespace:
 //
 //
@@ -185,10 +185,15 @@ TEST_P(DerivedTest, DoesBlah) {
 # include <utility>
 #endif
 
+// scripts/fuse_gtest.py depends on gtest's own header being #included
+// *unconditionally*.  Therefore these #includes cannot be moved
+// inside #if GTEST_HAS_PARAM_TEST.
 #include "gtest/internal/gtest-internal.h"
 #include "gtest/internal/gtest-param-util.h"
 #include "gtest/internal/gtest-param-util-generated.h"
 
+#if GTEST_HAS_PARAM_TEST
+
 namespace testing {
 
 // Functions producing parameter generators.
@@ -268,7 +273,7 @@ internal::ParamGenerator<T> Range(T start, T end) {
 // each with C-string values of "foo", "bar", and "baz":
 //
 // const char* strings[] = {"foo", "bar", "baz"};
-// INSTANTIATE_TEST_CASE_P(StringSequence, StringTest, ValuesIn(strings));
+// INSTANTIATE_TEST_CASE_P(StringSequence, SrtingTest, ValuesIn(strings));
 //
 // This instantiates tests from test case StlStringTest
 // each with STL strings with values "a" and "b":
@@ -1370,6 +1375,8 @@ internal::CartesianProductHolder10<Generator1, Generator2, Generator3,
 }
 # endif  // GTEST_HAS_COMBINE
 
+
+
 # define TEST_P(test_case_name, test_name) \
   class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) \
       : public test_case_name { \
@@ -1380,17 +1387,14 @@ internal::CartesianProductHolder10<Generator1, Generator2, Generator3,
     static int AddToRegistry() { \
       ::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
           GetTestCasePatternHolder<test_case_name>(\
-              #test_case_name, \
-              ::testing::internal::CodeLocation(\
-                  __FILE__, __LINE__))->AddTestPattern(\
-                      GTEST_STRINGIFY_(test_case_name), \
-                      GTEST_STRINGIFY_(test_name), \
-                      new ::testing::internal::TestMetaFactory< \
-                          GTEST_TEST_CLASS_NAME_(\
-                              test_case_name, test_name)>()); \
+              #test_case_name, __FILE__, __LINE__)->AddTestPattern(\
+                  #test_case_name, \
+                  #test_name, \
+                  new ::testing::internal::TestMetaFactory< \
+                      GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>()); \
       return 0; \
     } \
-    static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_; \
+    static int gtest_registering_dummy_; \
     GTEST_DISALLOW_COPY_AND_ASSIGN_(\
         GTEST_TEST_CLASS_NAME_(test_case_name, test_name)); \
   }; \
@@ -1399,39 +1403,19 @@ internal::CartesianProductHolder10<Generator1, Generator2, Generator3,
       GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::AddToRegistry(); \
   void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody()
 
-// The optional last argument to INSTANTIATE_TEST_CASE_P allows the user
-// to specify a function or functor that generates custom test name suffixes
-// based on the test parameters. The function should accept one argument of
-// type testing::TestParamInfo<class ParamType>, and return std::string.
-//
-// testing::PrintToStringParamName is a builtin test suffix generator that
-// returns the value of testing::PrintToString(GetParam()).
-//
-// Note: test names must be non-empty, unique, and may only contain ASCII
-// alphanumeric characters or underscore. Because PrintToString adds quotes
-// to std::string and C strings, it won't work for these types.
-
-#define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator, ...)        \
-  static ::testing::internal::ParamGenerator<test_case_name::ParamType>        \
-      gtest_##prefix##test_case_name##_EvalGenerator_() {                      \
-    return generator;                                                          \
-  }                                                                            \
-  static ::std::string gtest_##prefix##test_case_name##_EvalGenerateName_(     \
-      const ::testing::TestParamInfo<test_case_name::ParamType>& info) {       \
-    return ::testing::internal::GetParamNameGen<test_case_name::ParamType>(    \
-        __VA_ARGS__)(info);                                                    \
-  }                                                                            \
-  static int gtest_##prefix##test_case_name##_dummy_ GTEST_ATTRIBUTE_UNUSED_ = \
-      ::testing::UnitTest::GetInstance()                                       \
-          ->parameterized_test_registry()                                      \
-          .GetTestCasePatternHolder<test_case_name>(                           \
-              #test_case_name,                                                 \
-              ::testing::internal::CodeLocation(__FILE__, __LINE__))           \
-          ->AddTestCaseInstantiation(                                          \
-              #prefix, &gtest_##prefix##test_case_name##_EvalGenerator_,       \
-              &gtest_##prefix##test_case_name##_EvalGenerateName_, __FILE__,   \
-              __LINE__)
+# define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator) \
+  ::testing::internal::ParamGenerator<test_case_name::ParamType> \
+      gtest_##prefix##test_case_name##_EvalGenerator_() { return generator; } \
+  int gtest_##prefix##test_case_name##_dummy_ = \
+      ::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
+          GetTestCasePatternHolder<test_case_name>(\
+              #test_case_name, __FILE__, __LINE__)->AddTestCaseInstantiation(\
+                  #prefix, \
+                  &gtest_##prefix##test_case_name##_EvalGenerator_, \
+                  __FILE__, __LINE__)
 
 }  // namespace testing
 
+#endif  // GTEST_HAS_PARAM_TEST
+
 #endif  // GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest-param-test.h.pump b/gtests/google_test/gtest/include/gtest/gtest-param-test.h.pump
index 274f2b3b5..2dc9303b5 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-param-test.h.pump
+++ b/gtests/google_test/gtest/include/gtest/gtest-param-test.h.pump
@@ -30,12 +30,13 @@ $var maxtuple = 10  $$ Maximum number of Combine arguments we want to support.
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
+// Authors: vladl@google.com (Vlad Losev)
+//
 // Macros and functions for implementing parameterized tests
-// in Google C++ Testing and Mocking Framework (Google Test)
+// in Google C++ Testing Framework (Google Test)
 //
 // This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
 //
-// GOOGLETEST_CM0001 DO NOT DELETE
 #ifndef GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
 #define GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
 
@@ -77,7 +78,7 @@ TEST_P(FooTest, HasBlahBlah) {
 // Finally, you can use INSTANTIATE_TEST_CASE_P to instantiate the test
 // case with any set of parameters you want. Google Test defines a number
 // of functions for generating test parameters. They return what we call
-// (surprise!) parameter generators. Here is a summary of them, which
+// (surprise!) parameter generators. Here is a  summary of them, which
 // are all in the testing namespace:
 //
 //
@@ -183,10 +184,15 @@ TEST_P(DerivedTest, DoesBlah) {
 # include <utility>
 #endif
 
+// scripts/fuse_gtest.py depends on gtest's own header being #included
+// *unconditionally*.  Therefore these #includes cannot be moved
+// inside #if GTEST_HAS_PARAM_TEST.
 #include "gtest/internal/gtest-internal.h"
 #include "gtest/internal/gtest-param-util.h"
 #include "gtest/internal/gtest-param-util-generated.h"
 
+#if GTEST_HAS_PARAM_TEST
+
 namespace testing {
 
 // Functions producing parameter generators.
@@ -266,7 +272,7 @@ internal::ParamGenerator<T> Range(T start, T end) {
 // each with C-string values of "foo", "bar", and "baz":
 //
 // const char* strings[] = {"foo", "bar", "baz"};
-// INSTANTIATE_TEST_CASE_P(StringSequence, StringTest, ValuesIn(strings));
+// INSTANTIATE_TEST_CASE_P(StringSequence, SrtingTest, ValuesIn(strings));
 //
 // This instantiates tests from test case StlStringTest
 // each with STL strings with values "a" and "b":
@@ -435,6 +441,8 @@ internal::CartesianProductHolder$i<$for j, [[Generator$j]]> Combine(
 ]]
 # endif  // GTEST_HAS_COMBINE
 
+
+
 # define TEST_P(test_case_name, test_name) \
   class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) \
       : public test_case_name { \
@@ -445,17 +453,14 @@ internal::CartesianProductHolder$i<$for j, [[Generator$j]]> Combine(
     static int AddToRegistry() { \
       ::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
           GetTestCasePatternHolder<test_case_name>(\
-              #test_case_name, \
-              ::testing::internal::CodeLocation(\
-                  __FILE__, __LINE__))->AddTestPattern(\
-                      GTEST_STRINGIFY_(test_case_name), \
-                      GTEST_STRINGIFY_(test_name), \
-                      new ::testing::internal::TestMetaFactory< \
-                          GTEST_TEST_CLASS_NAME_(\
-                              test_case_name, test_name)>()); \
+              #test_case_name, __FILE__, __LINE__)->AddTestPattern(\
+                  #test_case_name, \
+                  #test_name, \
+                  new ::testing::internal::TestMetaFactory< \
+                      GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>()); \
       return 0; \
     } \
-    static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_; \
+    static int gtest_registering_dummy_; \
     GTEST_DISALLOW_COPY_AND_ASSIGN_(\
         GTEST_TEST_CLASS_NAME_(test_case_name, test_name)); \
   }; \
@@ -464,37 +469,19 @@ internal::CartesianProductHolder$i<$for j, [[Generator$j]]> Combine(
       GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::AddToRegistry(); \
   void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody()
 
-// The optional last argument to INSTANTIATE_TEST_CASE_P allows the user
-// to specify a function or functor that generates custom test name suffixes
-// based on the test parameters. The function should accept one argument of
-// type testing::TestParamInfo<class ParamType>, and return std::string.
-//
-// testing::PrintToStringParamName is a builtin test suffix generator that
-// returns the value of testing::PrintToString(GetParam()).
-//
-// Note: test names must be non-empty, unique, and may only contain ASCII
-// alphanumeric characters or underscore. Because PrintToString adds quotes
-// to std::string and C strings, it won't work for these types.
-
-# define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator, ...) \
-  static ::testing::internal::ParamGenerator<test_case_name::ParamType> \
+# define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator) \
+  ::testing::internal::ParamGenerator<test_case_name::ParamType> \
       gtest_##prefix##test_case_name##_EvalGenerator_() { return generator; } \
-  static ::std::string gtest_##prefix##test_case_name##_EvalGenerateName_( \
-      const ::testing::TestParamInfo<test_case_name::ParamType>& info) { \
-    return ::testing::internal::GetParamNameGen<test_case_name::ParamType> \
-        (__VA_ARGS__)(info); \
-  } \
-  static int gtest_##prefix##test_case_name##_dummy_ GTEST_ATTRIBUTE_UNUSED_ = \
+  int gtest_##prefix##test_case_name##_dummy_ = \
       ::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
           GetTestCasePatternHolder<test_case_name>(\
-              #test_case_name, \
-              ::testing::internal::CodeLocation(\
-                  __FILE__, __LINE__))->AddTestCaseInstantiation(\
-                      #prefix, \
-                      &gtest_##prefix##test_case_name##_EvalGenerator_, \
-                      &gtest_##prefix##test_case_name##_EvalGenerateName_, \
-                      __FILE__, __LINE__)
+              #test_case_name, __FILE__, __LINE__)->AddTestCaseInstantiation(\
+                  #prefix, \
+                  &gtest_##prefix##test_case_name##_EvalGenerator_, \
+                  __FILE__, __LINE__)
 
 }  // namespace testing
 
+#endif  // GTEST_HAS_PARAM_TEST
+
 #endif  // GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest-printers.h b/gtests/google_test/gtest/include/gtest/gtest-printers.h
index 51865f84e..18ee7bc64 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-printers.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-printers.h
@@ -26,9 +26,10 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: wan@google.com (Zhanyong Wan)
 
-
-// Google Test - The Google C++ Testing and Mocking Framework
+// Google Test - The Google C++ Testing Framework
 //
 // This file implements a universal value printer that can print a
 // value of any type T:
@@ -45,10 +46,6 @@
 //   2. operator<<(ostream&, const T&) defined in either foo or the
 //      global namespace.
 //
-// However if T is an STL-style container then it is printed element-wise
-// unless foo::PrintTo(const T&, ostream*) is defined. Note that
-// operator<<() is ignored for container types.
-//
 // If none of the above is defined, it will print the debug string of
 // the value if it is a protocol buffer, or print the raw bytes in the
 // value otherwise.
@@ -95,8 +92,6 @@
 // being defined as many user-defined container types don't have
 // value_type.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
 #define GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
 
@@ -112,12 +107,6 @@
 # include <tuple>
 #endif
 
-#if GTEST_HAS_ABSL
-#include "absl/strings/string_view.h"
-#include "absl/types/optional.h"
-#include "absl/types/variant.h"
-#endif  // GTEST_HAS_ABSL
-
 namespace testing {
 
 // Definitions in the 'internal' and 'internal2' name spaces are
@@ -136,11 +125,7 @@ enum TypeKind {
   kProtobuf,              // a protobuf type
   kConvertibleToInteger,  // a type implicitly convertible to BiggestInt
                           // (e.g. a named or unnamed enum type)
-#if GTEST_HAS_ABSL
-  kConvertibleToStringView,  // a type implicitly convertible to
-                             // absl::string_view
-#endif
-  kOtherType  // anything else
+  kOtherType              // anything else
 };
 
 // TypeWithoutFormatter<T, kTypeKind>::PrintValue(value, os) is called
@@ -152,8 +137,7 @@ class TypeWithoutFormatter {
  public:
   // This default version is called when kTypeKind is kOtherType.
   static void PrintValue(const T& value, ::std::ostream* os) {
-    PrintBytesInObjectTo(static_cast<const unsigned char*>(
-                             reinterpret_cast<const void*>(&value)),
+    PrintBytesInObjectTo(reinterpret_cast<const unsigned char*>(&value),
                          sizeof(value), os);
   }
 };
@@ -167,10 +151,10 @@ template <typename T>
 class TypeWithoutFormatter<T, kProtobuf> {
  public:
   static void PrintValue(const T& value, ::std::ostream* os) {
-    std::string pretty_str = value.ShortDebugString();
-    if (pretty_str.length() > kProtobufOneLinerMaxLength) {
-      pretty_str = "\n" + value.DebugString();
-    }
+    const ::testing::internal::string short_str = value.ShortDebugString();
+    const ::testing::internal::string pretty_str =
+        short_str.length() <= kProtobufOneLinerMaxLength ?
+        short_str : ("\n" + value.DebugString());
     *os << ("<" + pretty_str + ">");
   }
 };
@@ -191,19 +175,6 @@ class TypeWithoutFormatter<T, kConvertibleToInteger> {
   }
 };
 
-#if GTEST_HAS_ABSL
-template <typename T>
-class TypeWithoutFormatter<T, kConvertibleToStringView> {
- public:
-  // Since T has neither operator<< nor PrintTo() but can be implicitly
-  // converted to absl::string_view, we print it as a absl::string_view.
-  //
-  // Note: the implementation is further below, as it depends on
-  // internal::PrintTo symbol which is defined later in the file.
-  static void PrintValue(const T& value, ::std::ostream* os);
-};
-#endif
-
 // Prints the given value to the given ostream.  If the value is a
 // protocol message, its debug string is printed; if it's an enum or
 // of a type implicitly convertible to BiggestInt, it's printed as an
@@ -231,19 +202,10 @@ class TypeWithoutFormatter<T, kConvertibleToStringView> {
 template <typename Char, typename CharTraits, typename T>
 ::std::basic_ostream<Char, CharTraits>& operator<<(
     ::std::basic_ostream<Char, CharTraits>& os, const T& x) {
-  TypeWithoutFormatter<T, (internal::IsAProtocolMessage<T>::value
-                               ? kProtobuf
-                               : internal::ImplicitlyConvertible<
-                                     const T&, internal::BiggestInt>::value
-                                     ? kConvertibleToInteger
-                                     :
-#if GTEST_HAS_ABSL
-                                     internal::ImplicitlyConvertible<
-                                         const T&, absl::string_view>::value
-                                         ? kConvertibleToStringView
-                                         :
-#endif
-                                         kOtherType)>::PrintValue(x, &os);
+  TypeWithoutFormatter<T,
+      (internal::IsAProtocolMessage<T>::value ? kProtobuf :
+       internal::ImplicitlyConvertible<const T&, internal::BiggestInt>::value ?
+       kConvertibleToInteger : kOtherType)>::PrintValue(x, &os);
   return os;
 }
 
@@ -292,103 +254,6 @@ void DefaultPrintNonContainerTo(const T& value, ::std::ostream* os) {
 namespace testing {
 namespace internal {
 
-// FormatForComparison<ToPrint, OtherOperand>::Format(value) formats a
-// value of type ToPrint that is an operand of a comparison assertion
-// (e.g. ASSERT_EQ).  OtherOperand is the type of the other operand in
-// the comparison, and is used to help determine the best way to
-// format the value.  In particular, when the value is a C string
-// (char pointer) and the other operand is an STL string object, we
-// want to format the C string as a string, since we know it is
-// compared by value with the string object.  If the value is a char
-// pointer but the other operand is not an STL string object, we don't
-// know whether the pointer is supposed to point to a NUL-terminated
-// string, and thus want to print it as a pointer to be safe.
-//
-// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
-
-// The default case.
-template <typename ToPrint, typename OtherOperand>
-class FormatForComparison {
- public:
-  static ::std::string Format(const ToPrint& value) {
-    return ::testing::PrintToString(value);
-  }
-};
-
-// Array.
-template <typename ToPrint, size_t N, typename OtherOperand>
-class FormatForComparison<ToPrint[N], OtherOperand> {
- public:
-  static ::std::string Format(const ToPrint* value) {
-    return FormatForComparison<const ToPrint*, OtherOperand>::Format(value);
-  }
-};
-
-// By default, print C string as pointers to be safe, as we don't know
-// whether they actually point to a NUL-terminated string.
-
-#define GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(CharType)                \
-  template <typename OtherOperand>                                      \
-  class FormatForComparison<CharType*, OtherOperand> {                  \
-   public:                                                              \
-    static ::std::string Format(CharType* value) {                      \
-      return ::testing::PrintToString(static_cast<const void*>(value)); \
-    }                                                                   \
-  }
-
-GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char);
-GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char);
-GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(wchar_t);
-GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const wchar_t);
-
-#undef GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_
-
-// If a C string is compared with an STL string object, we know it's meant
-// to point to a NUL-terminated string, and thus can print it as a string.
-
-#define GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(CharType, OtherStringType) \
-  template <>                                                           \
-  class FormatForComparison<CharType*, OtherStringType> {               \
-   public:                                                              \
-    static ::std::string Format(CharType* value) {                      \
-      return ::testing::PrintToString(value);                           \
-    }                                                                   \
-  }
-
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::std::string);
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::std::string);
-
-#if GTEST_HAS_GLOBAL_STRING
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::string);
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::string);
-#endif
-
-#if GTEST_HAS_GLOBAL_WSTRING
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::wstring);
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::wstring);
-#endif
-
-#if GTEST_HAS_STD_WSTRING
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::std::wstring);
-GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::std::wstring);
-#endif
-
-#undef GTEST_IMPL_FORMAT_C_STRING_AS_STRING_
-
-// Formats a comparison assertion (e.g. ASSERT_EQ, EXPECT_LT, and etc)
-// operand to be used in a failure message.  The type (but not value)
-// of the other operand may affect the format.  This allows us to
-// print a char* as a raw pointer when it is compared against another
-// char* or void*, and print it as a C string when it is compared
-// against an std::string object, for example.
-//
-// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
-template <typename T1, typename T2>
-std::string FormatForComparisonFailureMessage(
-    const T1& value, const T2& /* other_operand */) {
-  return FormatForComparison<T1, T2>::Format(value);
-}
-
 // UniversalPrinter<T>::Print(value, ostream_ptr) prints the given
 // value to the given ostream.  The caller must ensure that
 // 'ostream_ptr' is not NULL, or the behavior is undefined.
@@ -402,18 +267,11 @@ class UniversalPrinter;
 template <typename T>
 void UniversalPrint(const T& value, ::std::ostream* os);
 
-enum DefaultPrinterType {
-  kPrintContainer,
-  kPrintPointer,
-  kPrintFunctionPointer,
-  kPrintOther,
-};
-template <DefaultPrinterType type> struct WrapPrinterType {};
-
 // Used to print an STL-style container when the user doesn't define
 // a PrintTo() for it.
 template <typename C>
-void DefaultPrintTo(WrapPrinterType<kPrintContainer> /* dummy */,
+void DefaultPrintTo(IsContainer /* dummy */,
+                    false_type /* is not a pointer */,
                     const C& container, ::std::ostream* os) {
   const size_t kMaxCount = 32;  // The maximum number of elements to print.
   *os << '{';
@@ -446,34 +304,40 @@ void DefaultPrintTo(WrapPrinterType<kPrintContainer> /* dummy */,
 // implementation-defined.  Therefore they will be printed as raw
 // bytes.)
 template <typename T>
-void DefaultPrintTo(WrapPrinterType<kPrintPointer> /* dummy */,
-                    T* p, ::std::ostream* os) {
-  if (p == NULL) {
-    *os << "NULL";
-  } else {
-    // T is not a function type.  We just call << to print p,
-    // relying on ADL to pick up user-defined << for their pointer
-    // types, if any.
-    *os << p;
-  }
-}
-template <typename T>
-void DefaultPrintTo(WrapPrinterType<kPrintFunctionPointer> /* dummy */,
+void DefaultPrintTo(IsNotContainer /* dummy */,
+                    true_type /* is a pointer */,
                     T* p, ::std::ostream* os) {
   if (p == NULL) {
     *os << "NULL";
   } else {
-    // T is a function type, so '*os << p' doesn't do what we want
-    // (it just prints p as bool).  We want to print p as a const
-    // void*.
-    *os << reinterpret_cast<const void*>(p);
+    // C++ doesn't allow casting from a function pointer to any object
+    // pointer.
+    //
+    // IsTrue() silences warnings: "Condition is always true",
+    // "unreachable code".
+    if (IsTrue(ImplicitlyConvertible<T*, const void*>::value)) {
+      // T is not a function type.  We just call << to print p,
+      // relying on ADL to pick up user-defined << for their pointer
+      // types, if any.
+      *os << p;
+    } else {
+      // T is a function type, so '*os << p' doesn't do what we want
+      // (it just prints p as bool).  We want to print p as a const
+      // void*.  However, we cannot cast it to const void* directly,
+      // even using reinterpret_cast, as earlier versions of gcc
+      // (e.g. 3.4.5) cannot compile the cast when p is a function
+      // pointer.  Casting to UInt64 first solves the problem.
+      *os << reinterpret_cast<const void*>(
+          reinterpret_cast<internal::UInt64>(p));
+    }
   }
 }
 
 // Used to print a non-container, non-pointer value when the user
 // doesn't define PrintTo() for it.
 template <typename T>
-void DefaultPrintTo(WrapPrinterType<kPrintOther> /* dummy */,
+void DefaultPrintTo(IsNotContainer /* dummy */,
+                    false_type /* is not a pointer */,
                     const T& value, ::std::ostream* os) {
   ::testing_internal::DefaultPrintNonContainerTo(value, os);
 }
@@ -491,8 +355,11 @@ void DefaultPrintTo(WrapPrinterType<kPrintOther> /* dummy */,
 // wants).
 template <typename T>
 void PrintTo(const T& value, ::std::ostream* os) {
-  // DefaultPrintTo() is overloaded.  The type of its first argument
-  // determines which version will be picked.
+  // DefaultPrintTo() is overloaded.  The type of its first two
+  // arguments determine which version will be picked.  If T is an
+  // STL-style container, the version for container will be called; if
+  // T is a pointer, the pointer version will be called; otherwise the
+  // generic version will be called.
   //
   // Note that we check for container types here, prior to we check
   // for protocol message types in our operator<<.  The rationale is:
@@ -504,27 +371,13 @@ void PrintTo(const T& value, ::std::ostream* os) {
   // elements; therefore we check for container types here to ensure
   // that our format is used.
   //
-  // Note that MSVC and clang-cl do allow an implicit conversion from
-  // pointer-to-function to pointer-to-object, but clang-cl warns on it.
-  // So don't use ImplicitlyConvertible if it can be helped since it will
-  // cause this warning, and use a separate overload of DefaultPrintTo for
-  // function pointers so that the `*os << p` in the object pointer overload
-  // doesn't cause that warning either.
-  DefaultPrintTo(
-      WrapPrinterType <
-                  (sizeof(IsContainerTest<T>(0)) == sizeof(IsContainer)) &&
-              !IsRecursiveContainer<T>::value
-          ? kPrintContainer
-          : !is_pointer<T>::value
-                ? kPrintOther
-#if GTEST_LANG_CXX11
-                : std::is_function<typename std::remove_pointer<T>::type>::value
-#else
-                : !internal::ImplicitlyConvertible<T, const void*>::value
-#endif
-                      ? kPrintFunctionPointer
-                      : kPrintPointer > (),
-      value, os);
+  // The second argument of DefaultPrintTo() is needed to bypass a bug
+  // in Symbian's C++ compiler that prevents it from picking the right
+  // overload between:
+  //
+  //   PrintTo(const T& x, ...);
+  //   PrintTo(T* x, ...);
+  DefaultPrintTo(IsContainerTest<T>(0), is_pointer<T>(), value, os);
 }
 
 // The following list of PrintTo() overloads tells
@@ -631,17 +484,6 @@ inline void PrintTo(const ::std::wstring& s, ::std::ostream* os) {
 }
 #endif  // GTEST_HAS_STD_WSTRING
 
-#if GTEST_HAS_ABSL
-// Overload for absl::string_view.
-inline void PrintTo(absl::string_view sp, ::std::ostream* os) {
-  PrintTo(::std::string(sp), os);
-}
-#endif  // GTEST_HAS_ABSL
-
-#if GTEST_LANG_CXX11
-inline void PrintTo(std::nullptr_t, ::std::ostream* os) { *os << "(nullptr)"; }
-#endif  // GTEST_LANG_CXX11
-
 #if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
 // Helper function for printing a tuple.  T must be instantiated with
 // a tuple type.
@@ -771,48 +613,6 @@ class UniversalPrinter {
   GTEST_DISABLE_MSC_WARNINGS_POP_()
 };
 
-#if GTEST_HAS_ABSL
-
-// Printer for absl::optional
-
-template <typename T>
-class UniversalPrinter<::absl::optional<T>> {
- public:
-  static void Print(const ::absl::optional<T>& value, ::std::ostream* os) {
-    *os << '(';
-    if (!value) {
-      *os << "nullopt";
-    } else {
-      UniversalPrint(*value, os);
-    }
-    *os << ')';
-  }
-};
-
-// Printer for absl::variant
-
-template <typename... T>
-class UniversalPrinter<::absl::variant<T...>> {
- public:
-  static void Print(const ::absl::variant<T...>& value, ::std::ostream* os) {
-    *os << '(';
-    absl::visit(Visitor{os}, value);
-    *os << ')';
-  }
-
- private:
-  struct Visitor {
-    template <typename U>
-    void operator()(const U& u) const {
-      *os << "'" << GetTypeName<U>() << "' with value ";
-      UniversalPrint(u, os);
-    }
-    ::std::ostream* os;
-  };
-};
-
-#endif  // GTEST_HAS_ABSL
-
 // UniversalPrintArray(begin, len, os) prints an array of 'len'
 // elements, starting at address 'begin'.
 template <typename T>
@@ -826,7 +626,7 @@ void UniversalPrintArray(const T* begin, size_t len, ::std::ostream* os) {
     // If the array has more than kThreshold elements, we'll have to
     // omit some details by printing only the first and the last
     // kChunkSize elements.
-    // FIXME: let the user control the threshold using a flag.
+    // TODO(wan@google.com): let the user control the threshold using a flag.
     if (len <= kThreshold) {
       PrintRawArrayTo(begin, len, os);
     } else {
@@ -908,7 +708,7 @@ class UniversalTersePrinter<const char*> {
     if (str == NULL) {
       *os << "NULL";
     } else {
-      UniversalPrint(std::string(str), os);
+      UniversalPrint(string(str), os);
     }
   }
 };
@@ -959,7 +759,7 @@ void UniversalPrint(const T& value, ::std::ostream* os) {
   UniversalPrinter<T1>::Print(value, os);
 }
 
-typedef ::std::vector< ::std::string> Strings;
+typedef ::std::vector<string> Strings;
 
 // TuplePolicy<TupleT> must provide:
 // - tuple_size
@@ -978,13 +778,12 @@ struct TuplePolicy {
   static const size_t tuple_size = ::std::tr1::tuple_size<Tuple>::value;
 
   template <size_t I>
-  struct tuple_element : ::std::tr1::tuple_element<static_cast<int>(I), Tuple> {
-  };
+  struct tuple_element : ::std::tr1::tuple_element<I, Tuple> {};
 
   template <size_t I>
-  static typename AddReference<const typename ::std::tr1::tuple_element<
-      static_cast<int>(I), Tuple>::type>::type
-  get(const Tuple& tuple) {
+  static typename AddReference<
+      const typename ::std::tr1::tuple_element<I, Tuple>::type>::type get(
+      const Tuple& tuple) {
     return ::std::tr1::get<I>(tuple);
   }
 };
@@ -1080,16 +879,6 @@ Strings UniversalTersePrintTupleFieldsToStrings(const Tuple& value) {
 
 }  // namespace internal
 
-#if GTEST_HAS_ABSL
-namespace internal2 {
-template <typename T>
-void TypeWithoutFormatter<T, kConvertibleToStringView>::PrintValue(
-    const T& value, ::std::ostream* os) {
-  internal::PrintTo(absl::string_view(value), os);
-}
-}  // namespace internal2
-#endif
-
 template <typename T>
 ::std::string PrintToString(const T& value) {
   ::std::stringstream ss;
@@ -1099,9 +888,4 @@ template <typename T>
 
 }  // namespace testing
 
-// Include any custom printer added by the local installation.
-// We must include this header at the end to make sure it can use the
-// declarations from this file.
-#include "gtest/internal/custom/gtest-printers.h"
-
 #endif  // GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest-spi.h b/gtests/google_test/gtest/include/gtest/gtest-spi.h
index 1e8983938..f63fa9a1b 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-spi.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-spi.h
@@ -26,21 +26,17 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: wan@google.com (Zhanyong Wan)
 //
 // Utilities for testing Google Test itself and code that uses Google Test
 // (e.g. frameworks built on top of Google Test).
 
-// GOOGLETEST_CM0004 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_GTEST_SPI_H_
 #define GTEST_INCLUDE_GTEST_GTEST_SPI_H_
 
 #include "gtest/gtest.h"
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 namespace testing {
 
 // This helper class can be used to mock out Google Test failure reporting
@@ -101,12 +97,13 @@ class GTEST_API_ SingleFailureChecker {
  public:
   // The constructor remembers the arguments.
   SingleFailureChecker(const TestPartResultArray* results,
-                       TestPartResult::Type type, const std::string& substr);
+                       TestPartResult::Type type,
+                       const string& substr);
   ~SingleFailureChecker();
  private:
   const TestPartResultArray* const results_;
   const TestPartResult::Type type_;
-  const std::string substr_;
+  const string substr_;
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(SingleFailureChecker);
 };
@@ -115,8 +112,6 @@ class GTEST_API_ SingleFailureChecker {
 
 }  // namespace testing
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 // A set of macros for testing Google Test assertions or code that's expected
 // to generate Google Test fatal failures.  It verifies that the given
 // statement will cause exactly one fatal Google Test failure with 'substr'
diff --git a/gtests/google_test/gtest/include/gtest/gtest-test-part.h b/gtests/google_test/gtest/include/gtest/gtest-test-part.h
index 1c7b89e08..77eb84483 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-test-part.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-test-part.h
@@ -27,7 +27,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// GOOGLETEST_CM0001 DO NOT DELETE
+// Author: mheule@google.com (Markus Heule)
+//
 
 #ifndef GTEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
 #define GTEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
@@ -37,9 +38,6 @@
 #include "gtest/internal/gtest-internal.h"
 #include "gtest/internal/gtest-string.h"
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 namespace testing {
 
 // A copyable object representing the result of a test part (i.e. an
@@ -145,7 +143,7 @@ class GTEST_API_ TestPartResultArray {
 };
 
 // This interface knows how to report a test part result.
-class GTEST_API_ TestPartResultReporterInterface {
+class TestPartResultReporterInterface {
  public:
   virtual ~TestPartResultReporterInterface() {}
 
@@ -178,6 +176,4 @@ class GTEST_API_ HasNewFatalFailureHelper
 
 }  // namespace testing
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 #endif  // GTEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest-typed-test.h b/gtests/google_test/gtest/include/gtest/gtest-typed-test.h
index 61d8907ec..fe1e83b27 100644
--- a/gtests/google_test/gtest/include/gtest/gtest-typed-test.h
+++ b/gtests/google_test/gtest/include/gtest/gtest-typed-test.h
@@ -26,9 +26,8 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-// GOOGLETEST_CM0001 DO NOT DELETE
+//
+// Author: wan@google.com (Zhanyong Wan)
 
 #ifndef GTEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
 #define GTEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
@@ -182,8 +181,7 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, MyTypes);
           ::testing::internal::TemplateSel< \
               GTEST_TEST_CLASS_NAME_(CaseName, TestName)>, \
           GTEST_TYPE_PARAMS_(CaseName)>::Register(\
-              "", ::testing::internal::CodeLocation(__FILE__, __LINE__), \
-              #CaseName, #TestName, 0); \
+              "", #CaseName, #TestName, 0); \
   template <typename gtest_TypeParam_> \
   void GTEST_TEST_CLASS_NAME_(CaseName, TestName)<gtest_TypeParam_>::TestBody()
 
@@ -242,10 +240,9 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, MyTypes);
   namespace GTEST_CASE_NAMESPACE_(CaseName) { \
   typedef ::testing::internal::Templates<__VA_ARGS__>::type gtest_AllTests_; \
   } \
-  static const char* const GTEST_REGISTERED_TEST_NAMES_(CaseName) \
-      GTEST_ATTRIBUTE_UNUSED_ = \
-          GTEST_TYPED_TEST_CASE_P_STATE_(CaseName).VerifyRegisteredTestNames( \
-              __FILE__, __LINE__, #__VA_ARGS__)
+  static const char* const GTEST_REGISTERED_TEST_NAMES_(CaseName) = \
+      GTEST_TYPED_TEST_CASE_P_STATE_(CaseName).VerifyRegisteredTestNames(\
+          __FILE__, __LINE__, #__VA_ARGS__)
 
 // The 'Types' template argument below must have spaces around it
 // since some compilers may choke on '>>' when passing a template
@@ -255,10 +252,7 @@ INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, MyTypes);
       ::testing::internal::TypeParameterizedTestCase<CaseName, \
           GTEST_CASE_NAMESPACE_(CaseName)::gtest_AllTests_, \
           ::testing::internal::TypeList< Types >::type>::Register(\
-              #Prefix, \
-              ::testing::internal::CodeLocation(__FILE__, __LINE__), \
-              &GTEST_TYPED_TEST_CASE_P_STATE_(CaseName), \
-              #CaseName, GTEST_REGISTERED_TEST_NAMES_(CaseName))
+              #Prefix, #CaseName, GTEST_REGISTERED_TEST_NAMES_(CaseName))
 
 #endif  // GTEST_HAS_TYPED_TEST_P
 
diff --git a/gtests/google_test/gtest/include/gtest/gtest.h b/gtests/google_test/gtest/include/gtest/gtest.h
index 2be8b112c..38ca3e976 100644
--- a/gtests/google_test/gtest/include/gtest/gtest.h
+++ b/gtests/google_test/gtest/include/gtest/gtest.h
@@ -26,9 +26,10 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 //
-// The Google C++ Testing and Mocking Framework (Google Test)
+// Author: wan@google.com (Zhanyong Wan)
+//
+// The Google C++ Testing Framework (Google Test)
 //
 // This header file defines the public API for Google Test.  It should be
 // included by any test program that uses Google Test.
@@ -47,8 +48,6 @@
 // registration from Barthelemy Dagenais' (barthelemy@prologique.com)
 // easyUnit framework.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_GTEST_H_
 #define GTEST_INCLUDE_GTEST_GTEST_H_
 
@@ -66,9 +65,6 @@
 #include "gtest/gtest-test-part.h"
 #include "gtest/gtest-typed-test.h"
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 // Depending on the platform, different string classes are available.
 // On Linux, in addition to ::std::string, Google also makes use of
 // class ::string, which has the same interface as ::std::string, but
@@ -86,15 +82,6 @@ GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
 
 namespace testing {
 
-// Silence C4100 (unreferenced formal parameter) and 4805
-// unsafe mix of type 'const int' and type 'const bool'
-#ifdef _MSC_VER
-# pragma warning(push)
-# pragma warning(disable:4805)
-# pragma warning(disable:4100)
-#endif
-
-
 // Declares the flags.
 
 // This flag temporary enables the disabled tests.
@@ -128,9 +115,6 @@ GTEST_DECLARE_string_(output);
 // test.
 GTEST_DECLARE_bool_(print_time);
 
-// This flags control whether Google Test prints UTF8 characters as text.
-GTEST_DECLARE_bool_(print_utf8);
-
 // This flag specifies the random number seed.
 GTEST_DECLARE_int32_(random_seed);
 
@@ -151,7 +135,7 @@ GTEST_DECLARE_int32_(stack_trace_depth);
 
 // When this flag is specified, a failed assertion will throw an
 // exception if exceptions are enabled, or exit the program with a
-// non-zero code otherwise. For use with an external test framework.
+// non-zero code otherwise.
 GTEST_DECLARE_bool_(throw_on_failure);
 
 // When this flag is set with a "host:port" string, on supported
@@ -176,7 +160,6 @@ class TestEventListenersAccessor;
 class TestEventRepeater;
 class UnitTestRecordPropertyTestHelper;
 class WindowsDeathTest;
-class FuchsiaDeathTest;
 class UnitTestImpl* GetUnitTestImpl();
 void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
                                     const std::string& message);
@@ -276,9 +259,7 @@ class GTEST_API_ AssertionResult {
   // Used in EXPECT_TRUE/FALSE(assertion_result).
   AssertionResult(const AssertionResult& other);
 
-#if defined(_MSC_VER) && _MSC_VER < 1910
   GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 /* forcing value to bool */)
-#endif
 
   // Used in the EXPECT_TRUE/FALSE(bool_expression).
   //
@@ -295,9 +276,7 @@ class GTEST_API_ AssertionResult {
           /*enabler*/ = NULL)
       : success_(success) {}
 
-#if defined(_MSC_VER) && _MSC_VER < 1910
   GTEST_DISABLE_MSC_WARNINGS_POP_()
-#endif
 
   // Assignment operator.
   AssertionResult& operator=(AssertionResult other) {
@@ -318,7 +297,7 @@ class GTEST_API_ AssertionResult {
   const char* message() const {
     return message_.get() != NULL ?  message_->c_str() : "";
   }
-  // FIXME: Remove this after making sure no clients use it.
+  // TODO(vladl@google.com): Remove this after making sure no clients use it.
   // Deprecated; please use message() instead.
   const char* failure_message() const { return message(); }
 
@@ -366,15 +345,6 @@ GTEST_API_ AssertionResult AssertionFailure();
 // Deprecated; use AssertionFailure() << msg.
 GTEST_API_ AssertionResult AssertionFailure(const Message& msg);
 
-}  // namespace testing
-
-// Includes the auto-generated header that implements a family of generic
-// predicate assertion macros. This include comes late because it relies on
-// APIs declared above.
-#include "gtest/gtest_pred_impl.h"
-
-namespace testing {
-
 // The abstract class that all tests inherit from.
 //
 // In Google Test, a unit test program contains one or many TestCases, and
@@ -385,12 +355,12 @@ namespace testing {
 // this for you.
 //
 // The only time you derive from Test is when defining a test fixture
-// to be used in a TEST_F.  For example:
+// to be used a TEST_F.  For example:
 //
 //   class FooTest : public testing::Test {
 //    protected:
-//     void SetUp() override { ... }
-//     void TearDown() override { ... }
+//     virtual void SetUp() { ... }
+//     virtual void TearDown() { ... }
 //     ...
 //   };
 //
@@ -482,7 +452,8 @@ class GTEST_API_ Test {
   // internal method to avoid clashing with names used in user TESTs.
   void DeleteSelf_() { delete this; }
 
-  const internal::scoped_ptr< GTEST_FLAG_SAVER_ > gtest_flag_saver_;
+  // Uses a GTestFlagSaver to save and restore all Google Test flags.
+  const internal::GTestFlagSaver* const gtest_flag_saver_;
 
   // Often a user misspells SetUp() as Setup() and spends a long time
   // wondering why it is never called by Google Test.  The declaration of
@@ -580,8 +551,9 @@ class GTEST_API_ TestResult {
   // Returns the elapsed time, in milliseconds.
   TimeInMillis elapsed_time() const { return elapsed_time_; }
 
-  // Returns the i-th test part result among all the results. i can range from 0
-  // to total_part_count() - 1. If i is not in that range, aborts the program.
+  // Returns the i-th test part result among all the results. i can range
+  // from 0 to test_property_count() - 1. If i is not in that range, aborts
+  // the program.
   const TestPartResult& GetTestPartResult(int i) const;
 
   // Returns the i-th test property. i can range from 0 to
@@ -598,7 +570,6 @@ class GTEST_API_ TestResult {
   friend class internal::TestResultAccessor;
   friend class internal::UnitTestImpl;
   friend class internal::WindowsDeathTest;
-  friend class internal::FuchsiaDeathTest;
 
   // Gets the vector of TestPartResults.
   const std::vector<TestPartResult>& test_part_results() const {
@@ -624,7 +595,7 @@ class GTEST_API_ TestResult {
 
   // Adds a failure if the key is a reserved attribute of Google Test
   // testcase tags.  Returns true if the property is valid.
-  // FIXME: Validate attribute names are legal and human readable.
+  // TODO(russr): Validate attribute names are legal and human readable.
   static bool ValidateTestProperty(const std::string& xml_element,
                                    const TestProperty& test_property);
 
@@ -699,15 +670,6 @@ class GTEST_API_ TestInfo {
     return NULL;
   }
 
-  // Returns the file name where this test is defined.
-  const char* file() const { return location_.file.c_str(); }
-
-  // Returns the line where this test is defined.
-  int line() const { return location_.line; }
-
-  // Return true if this test should not be run because it's in another shard.
-  bool is_in_another_shard() const { return is_in_another_shard_; }
-
   // Returns true if this test should run, that is if the test is not
   // disabled (or it is disabled but the also_run_disabled_tests flag has
   // been specified) and its full name matches the user-specified filter.
@@ -728,9 +690,10 @@ class GTEST_API_ TestInfo {
 
   // Returns true iff this test will appear in the XML report.
   bool is_reportable() const {
-    // The XML report includes tests matching the filter, excluding those
-    // run in other shards.
-    return matches_filter_ && !is_in_another_shard_;
+    // For now, the XML report includes all tests matching the filter.
+    // In the future, we may trim tests that are excluded because of
+    // sharding.
+    return matches_filter_;
   }
 
   // Returns the result of the test.
@@ -749,7 +712,6 @@ class GTEST_API_ TestInfo {
       const char* name,
       const char* type_param,
       const char* value_param,
-      internal::CodeLocation code_location,
       internal::TypeId fixture_class_id,
       Test::SetUpTestCaseFunc set_up_tc,
       Test::TearDownTestCaseFunc tear_down_tc,
@@ -761,7 +723,6 @@ class GTEST_API_ TestInfo {
            const std::string& name,
            const char* a_type_param,   // NULL if not a type-parameterized test
            const char* a_value_param,  // NULL if not a value-parameterized test
-           internal::CodeLocation a_code_location,
            internal::TypeId fixture_class_id,
            internal::TestFactoryBase* factory);
 
@@ -788,13 +749,11 @@ class GTEST_API_ TestInfo {
   // Text representation of the value parameter, or NULL if this is not a
   // value-parameterized test.
   const internal::scoped_ptr<const ::std::string> value_param_;
-  internal::CodeLocation location_;
   const internal::TypeId fixture_class_id_;   // ID of the test fixture class
   bool should_run_;                 // True iff this test should run
   bool is_disabled_;                // True iff this test is disabled
   bool matches_filter_;             // True if this test matches the
                                     // user-specified filter.
-  bool is_in_another_shard_;        // Will be run in another shard.
   internal::TestFactoryBase* const factory_;  // The factory that creates
                                               // the test object
 
@@ -1019,18 +978,6 @@ class Environment {
   virtual Setup_should_be_spelled_SetUp* Setup() { return NULL; }
 };
 
-#if GTEST_HAS_EXCEPTIONS
-
-// Exception which can be thrown from TestEventListener::OnTestPartResult.
-class GTEST_API_ AssertionException
-    : public internal::GoogleTestFailureException {
- public:
-  explicit AssertionException(const TestPartResult& result)
-      : GoogleTestFailureException(result) {}
-};
-
-#endif  // GTEST_HAS_EXCEPTIONS
-
 // The interface for tracing execution of tests. The methods are organized in
 // the order the corresponding events are fired.
 class TestEventListener {
@@ -1059,8 +1006,6 @@ class TestEventListener {
   virtual void OnTestStart(const TestInfo& test_info) = 0;
 
   // Fired after a failed assertion or a SUCCEED() invocation.
-  // If you want to throw an exception from this function to skip to the next
-  // TEST, it must be AssertionException defined above, or inherited from it.
   virtual void OnTestPartResult(const TestPartResult& test_part_result) = 0;
 
   // Fired after the test ends.
@@ -1227,12 +1172,14 @@ class GTEST_API_ UnitTest {
   // Returns the random seed used at the start of the current test run.
   int random_seed() const;
 
+#if GTEST_HAS_PARAM_TEST
   // Returns the ParameterizedTestCaseRegistry object used to keep track of
   // value-parameterized tests and instantiate and register them.
   //
   // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
   internal::ParameterizedTestCaseRegistry& parameterized_test_registry()
       GTEST_LOCK_EXCLUDED_(mutex_);
+#endif  // GTEST_HAS_PARAM_TEST
 
   // Gets the number of successful test cases.
   int successful_test_case_count() const;
@@ -1332,11 +1279,11 @@ class GTEST_API_ UnitTest {
   internal::UnitTestImpl* impl() { return impl_; }
   const internal::UnitTestImpl* impl() const { return impl_; }
 
-  // These classes and functions are friends as they need to access private
+  // These classes and funcions are friends as they need to access private
   // members of UnitTest.
-  friend class ScopedTrace;
   friend class Test;
   friend class internal::AssertHelper;
+  friend class internal::ScopedTrace;
   friend class internal::StreamingListenerTest;
   friend class internal::UnitTestRecordPropertyTestHelper;
   friend Environment* AddGlobalTestEnvironment(Environment* env);
@@ -1413,40 +1360,129 @@ GTEST_API_ void InitGoogleTest(int* argc, wchar_t** argv);
 
 namespace internal {
 
-// Separate the error generating code from the code path to reduce the stack
-// frame size of CmpHelperEQ. This helps reduce the overhead of some sanitizers
-// when calling EXPECT_* in a tight loop.
+// FormatForComparison<ToPrint, OtherOperand>::Format(value) formats a
+// value of type ToPrint that is an operand of a comparison assertion
+// (e.g. ASSERT_EQ).  OtherOperand is the type of the other operand in
+// the comparison, and is used to help determine the best way to
+// format the value.  In particular, when the value is a C string
+// (char pointer) and the other operand is an STL string object, we
+// want to format the C string as a string, since we know it is
+// compared by value with the string object.  If the value is a char
+// pointer but the other operand is not an STL string object, we don't
+// know whether the pointer is supposed to point to a NUL-terminated
+// string, and thus want to print it as a pointer to be safe.
+//
+// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
+
+// The default case.
+template <typename ToPrint, typename OtherOperand>
+class FormatForComparison {
+ public:
+  static ::std::string Format(const ToPrint& value) {
+    return ::testing::PrintToString(value);
+  }
+};
+
+// Array.
+template <typename ToPrint, size_t N, typename OtherOperand>
+class FormatForComparison<ToPrint[N], OtherOperand> {
+ public:
+  static ::std::string Format(const ToPrint* value) {
+    return FormatForComparison<const ToPrint*, OtherOperand>::Format(value);
+  }
+};
+
+// By default, print C string as pointers to be safe, as we don't know
+// whether they actually point to a NUL-terminated string.
+
+#define GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(CharType)                \
+  template <typename OtherOperand>                                      \
+  class FormatForComparison<CharType*, OtherOperand> {                  \
+   public:                                                              \
+    static ::std::string Format(CharType* value) {                      \
+      return ::testing::PrintToString(static_cast<const void*>(value)); \
+    }                                                                   \
+  }
+
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(wchar_t);
+GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const wchar_t);
+
+#undef GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_
+
+// If a C string is compared with an STL string object, we know it's meant
+// to point to a NUL-terminated string, and thus can print it as a string.
+
+#define GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(CharType, OtherStringType) \
+  template <>                                                           \
+  class FormatForComparison<CharType*, OtherStringType> {               \
+   public:                                                              \
+    static ::std::string Format(CharType* value) {                      \
+      return ::testing::PrintToString(value);                           \
+    }                                                                   \
+  }
+
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::std::string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::std::string);
+
+#if GTEST_HAS_GLOBAL_STRING
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::string);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::string);
+#endif
+
+#if GTEST_HAS_GLOBAL_WSTRING
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::wstring);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::wstring);
+#endif
+
+#if GTEST_HAS_STD_WSTRING
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::std::wstring);
+GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::std::wstring);
+#endif
+
+#undef GTEST_IMPL_FORMAT_C_STRING_AS_STRING_
+
+// Formats a comparison assertion (e.g. ASSERT_EQ, EXPECT_LT, and etc)
+// operand to be used in a failure message.  The type (but not value)
+// of the other operand may affect the format.  This allows us to
+// print a char* as a raw pointer when it is compared against another
+// char* or void*, and print it as a C string when it is compared
+// against an std::string object, for example.
+//
+// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
 template <typename T1, typename T2>
-AssertionResult CmpHelperEQFailure(const char* lhs_expression,
-                                   const char* rhs_expression,
-                                   const T1& lhs, const T2& rhs) {
-  return EqFailure(lhs_expression,
-                   rhs_expression,
-                   FormatForComparisonFailureMessage(lhs, rhs),
-                   FormatForComparisonFailureMessage(rhs, lhs),
-                   false);
+std::string FormatForComparisonFailureMessage(
+    const T1& value, const T2& /* other_operand */) {
+  return FormatForComparison<T1, T2>::Format(value);
 }
 
 // The helper function for {ASSERT|EXPECT}_EQ.
 template <typename T1, typename T2>
-AssertionResult CmpHelperEQ(const char* lhs_expression,
-                            const char* rhs_expression,
-                            const T1& lhs,
-                            const T2& rhs) {
-  if (lhs == rhs) {
+AssertionResult CmpHelperEQ(const char* expected_expression,
+                            const char* actual_expression,
+                            const T1& expected,
+                            const T2& actual) {
+GTEST_DISABLE_MSC_WARNINGS_PUSH_(4389 /* signed/unsigned mismatch */)
+  if (expected == actual) {
     return AssertionSuccess();
   }
+GTEST_DISABLE_MSC_WARNINGS_POP_()
 
-  return CmpHelperEQFailure(lhs_expression, rhs_expression, lhs, rhs);
+  return EqFailure(expected_expression,
+                   actual_expression,
+                   FormatForComparisonFailureMessage(expected, actual),
+                   FormatForComparisonFailureMessage(actual, expected),
+                   false);
 }
 
 // With this overloaded version, we allow anonymous enums to be used
 // in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous enums
 // can be implicitly cast to BiggestInt.
-GTEST_API_ AssertionResult CmpHelperEQ(const char* lhs_expression,
-                                       const char* rhs_expression,
-                                       BiggestInt lhs,
-                                       BiggestInt rhs);
+GTEST_API_ AssertionResult CmpHelperEQ(const char* expected_expression,
+                                       const char* actual_expression,
+                                       BiggestInt expected,
+                                       BiggestInt actual);
 
 // The helper class for {ASSERT|EXPECT}_EQ.  The template argument
 // lhs_is_null_literal is true iff the first argument to ASSERT_EQ()
@@ -1457,11 +1493,12 @@ class EqHelper {
  public:
   // This templatized version is for the general case.
   template <typename T1, typename T2>
-  static AssertionResult Compare(const char* lhs_expression,
-                                 const char* rhs_expression,
-                                 const T1& lhs,
-                                 const T2& rhs) {
-    return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
+  static AssertionResult Compare(const char* expected_expression,
+                                 const char* actual_expression,
+                                 const T1& expected,
+                                 const T2& actual) {
+    return CmpHelperEQ(expected_expression, actual_expression, expected,
+                       actual);
   }
 
   // With this overloaded version, we allow anonymous enums to be used
@@ -1470,11 +1507,12 @@ class EqHelper {
   //
   // Even though its body looks the same as the above version, we
   // cannot merge the two, as it will make anonymous enums unhappy.
-  static AssertionResult Compare(const char* lhs_expression,
-                                 const char* rhs_expression,
-                                 BiggestInt lhs,
-                                 BiggestInt rhs) {
-    return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
+  static AssertionResult Compare(const char* expected_expression,
+                                 const char* actual_expression,
+                                 BiggestInt expected,
+                                 BiggestInt actual) {
+    return CmpHelperEQ(expected_expression, actual_expression, expected,
+                       actual);
   }
 };
 
@@ -1489,52 +1527,40 @@ class EqHelper<true> {
   // EXPECT_EQ(false, a_bool).
   template <typename T1, typename T2>
   static AssertionResult Compare(
-      const char* lhs_expression,
-      const char* rhs_expression,
-      const T1& lhs,
-      const T2& rhs,
+      const char* expected_expression,
+      const char* actual_expression,
+      const T1& expected,
+      const T2& actual,
       // The following line prevents this overload from being considered if T2
       // is not a pointer type.  We need this because ASSERT_EQ(NULL, my_ptr)
       // expands to Compare("", "", NULL, my_ptr), which requires a conversion
       // to match the Secret* in the other overload, which would otherwise make
       // this template match better.
       typename EnableIf<!is_pointer<T2>::value>::type* = 0) {
-    return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
+    return CmpHelperEQ(expected_expression, actual_expression, expected,
+                       actual);
   }
 
   // This version will be picked when the second argument to ASSERT_EQ() is a
   // pointer, e.g. ASSERT_EQ(NULL, a_pointer).
   template <typename T>
   static AssertionResult Compare(
-      const char* lhs_expression,
-      const char* rhs_expression,
+      const char* expected_expression,
+      const char* actual_expression,
       // We used to have a second template parameter instead of Secret*.  That
       // template parameter would deduce to 'long', making this a better match
       // than the first overload even without the first overload's EnableIf.
       // Unfortunately, gcc with -Wconversion-null warns when "passing NULL to
       // non-pointer argument" (even a deduced integral argument), so the old
       // implementation caused warnings in user code.
-      Secret* /* lhs (NULL) */,
-      T* rhs) {
-    // We already know that 'lhs' is a null pointer.
-    return CmpHelperEQ(lhs_expression, rhs_expression,
-                       static_cast<T*>(NULL), rhs);
+      Secret* /* expected (NULL) */,
+      T* actual) {
+    // We already know that 'expected' is a null pointer.
+    return CmpHelperEQ(expected_expression, actual_expression,
+                       static_cast<T*>(NULL), actual);
   }
 };
 
-// Separate the error generating code from the code path to reduce the stack
-// frame size of CmpHelperOP. This helps reduce the overhead of some sanitizers
-// when calling EXPECT_OP in a tight loop.
-template <typename T1, typename T2>
-AssertionResult CmpHelperOpFailure(const char* expr1, const char* expr2,
-                                   const T1& val1, const T2& val2,
-                                   const char* op) {
-  return AssertionFailure()
-         << "Expected: (" << expr1 << ") " << op << " (" << expr2
-         << "), actual: " << FormatForComparisonFailureMessage(val1, val2)
-         << " vs " << FormatForComparisonFailureMessage(val2, val1);
-}
-
 // A macro for implementing the helper functions needed to implement
 // ASSERT_?? and EXPECT_??.  It is here just to avoid copy-and-paste
 // of similar code.
@@ -1545,7 +1571,6 @@ AssertionResult CmpHelperOpFailure(const char* expr1, const char* expr2,
 // with gcc 4.
 //
 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
-
 #define GTEST_IMPL_CMP_HELPER_(op_name, op)\
 template <typename T1, typename T2>\
 AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
@@ -1553,7 +1578,10 @@ AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
   if (val1 op val2) {\
     return AssertionSuccess();\
   } else {\
-    return CmpHelperOpFailure(expr1, expr2, val1, val2, #op);\
+    return AssertionFailure() \
+        << "Expected: (" << expr1 << ") " #op " (" << expr2\
+        << "), actual: " << FormatForComparisonFailureMessage(val1, val2)\
+        << " vs " << FormatForComparisonFailureMessage(val2, val1);\
   }\
 }\
 GTEST_API_ AssertionResult CmpHelper##op_name(\
@@ -1577,18 +1605,18 @@ GTEST_IMPL_CMP_HELPER_(GT, >);
 // The helper function for {ASSERT|EXPECT}_STREQ.
 //
 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
-GTEST_API_ AssertionResult CmpHelperSTREQ(const char* s1_expression,
-                                          const char* s2_expression,
-                                          const char* s1,
-                                          const char* s2);
+GTEST_API_ AssertionResult CmpHelperSTREQ(const char* expected_expression,
+                                          const char* actual_expression,
+                                          const char* expected,
+                                          const char* actual);
 
 // The helper function for {ASSERT|EXPECT}_STRCASEEQ.
 //
 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
-GTEST_API_ AssertionResult CmpHelperSTRCASEEQ(const char* s1_expression,
-                                              const char* s2_expression,
-                                              const char* s1,
-                                              const char* s2);
+GTEST_API_ AssertionResult CmpHelperSTRCASEEQ(const char* expected_expression,
+                                              const char* actual_expression,
+                                              const char* expected,
+                                              const char* actual);
 
 // The helper function for {ASSERT|EXPECT}_STRNE.
 //
@@ -1610,10 +1638,10 @@ GTEST_API_ AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
 // Helper function for *_STREQ on wide strings.
 //
 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
-GTEST_API_ AssertionResult CmpHelperSTREQ(const char* s1_expression,
-                                          const char* s2_expression,
-                                          const wchar_t* s1,
-                                          const wchar_t* s2);
+GTEST_API_ AssertionResult CmpHelperSTREQ(const char* expected_expression,
+                                          const char* actual_expression,
+                                          const wchar_t* expected,
+                                          const wchar_t* actual);
 
 // Helper function for *_STRNE on wide strings.
 //
@@ -1671,28 +1699,28 @@ namespace internal {
 //
 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
 template <typename RawType>
-AssertionResult CmpHelperFloatingPointEQ(const char* lhs_expression,
-                                         const char* rhs_expression,
-                                         RawType lhs_value,
-                                         RawType rhs_value) {
-  const FloatingPoint<RawType> lhs(lhs_value), rhs(rhs_value);
+AssertionResult CmpHelperFloatingPointEQ(const char* expected_expression,
+                                         const char* actual_expression,
+                                         RawType expected,
+                                         RawType actual) {
+  const FloatingPoint<RawType> lhs(expected), rhs(actual);
 
   if (lhs.AlmostEquals(rhs)) {
     return AssertionSuccess();
   }
 
-  ::std::stringstream lhs_ss;
-  lhs_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
-         << lhs_value;
+  ::std::stringstream expected_ss;
+  expected_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
+              << expected;
 
-  ::std::stringstream rhs_ss;
-  rhs_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
-         << rhs_value;
+  ::std::stringstream actual_ss;
+  actual_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
+            << actual;
 
-  return EqFailure(lhs_expression,
-                   rhs_expression,
-                   StringStreamToString(&lhs_ss),
-                   StringStreamToString(&rhs_ss),
+  return EqFailure(expected_expression,
+                   actual_expression,
+                   StringStreamToString(&expected_ss),
+                   StringStreamToString(&actual_ss),
                    false);
 }
 
@@ -1749,6 +1777,7 @@ class GTEST_API_ AssertHelper {
 
 }  // namespace internal
 
+#if GTEST_HAS_PARAM_TEST
 // The pure interface class that all value-parameterized tests inherit from.
 // A value-parameterized class must inherit from both ::testing::Test and
 // ::testing::WithParamInterface. In most cases that just means inheriting
@@ -1825,6 +1854,8 @@ template <typename T>
 class TestWithParam : public Test, public WithParamInterface<T> {
 };
 
+#endif  // GTEST_HAS_PARAM_TEST
+
 // Macros for indicating success/failure in test code.
 
 // ADD_FAILURE unconditionally adds a failure to the current test.
@@ -1909,14 +1940,18 @@ class TestWithParam : public Test, public WithParamInterface<T> {
   GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
                       GTEST_FATAL_FAILURE_)
 
+// Includes the auto-generated header that implements a family of
+// generic predicate assertion macros.
+#include "gtest/gtest_pred_impl.h"
+
 // Macros for testing equalities and inequalities.
 //
-//    * {ASSERT|EXPECT}_EQ(v1, v2): Tests that v1 == v2
-//    * {ASSERT|EXPECT}_NE(v1, v2): Tests that v1 != v2
-//    * {ASSERT|EXPECT}_LT(v1, v2): Tests that v1 < v2
-//    * {ASSERT|EXPECT}_LE(v1, v2): Tests that v1 <= v2
-//    * {ASSERT|EXPECT}_GT(v1, v2): Tests that v1 > v2
-//    * {ASSERT|EXPECT}_GE(v1, v2): Tests that v1 >= v2
+//    * {ASSERT|EXPECT}_EQ(expected, actual): Tests that expected == actual
+//    * {ASSERT|EXPECT}_NE(v1, v2):           Tests that v1 != v2
+//    * {ASSERT|EXPECT}_LT(v1, v2):           Tests that v1 < v2
+//    * {ASSERT|EXPECT}_LE(v1, v2):           Tests that v1 <= v2
+//    * {ASSERT|EXPECT}_GT(v1, v2):           Tests that v1 > v2
+//    * {ASSERT|EXPECT}_GE(v1, v2):           Tests that v1 >= v2
 //
 // When they are not, Google Test prints both the tested expressions and
 // their actual values.  The values must be compatible built-in types,
@@ -1938,8 +1973,8 @@ class TestWithParam : public Test, public WithParamInterface<T> {
 //   are related, not how their content is related.  To compare two C
 //   strings by content, use {ASSERT|EXPECT}_STR*().
 //
-//   3. {ASSERT|EXPECT}_EQ(v1, v2) is preferred to
-//   {ASSERT|EXPECT}_TRUE(v1 == v2), as the former tells you
+//   3. {ASSERT|EXPECT}_EQ(expected, actual) is preferred to
+//   {ASSERT|EXPECT}_TRUE(expected == actual), as the former tells you
 //   what the actual value is when it fails, and similarly for the
 //   other comparisons.
 //
@@ -1950,17 +1985,17 @@ class TestWithParam : public Test, public WithParamInterface<T> {
 //
 // Examples:
 //
-//   EXPECT_NE(Foo(), 5);
-//   EXPECT_EQ(a_pointer, NULL);
+//   EXPECT_NE(5, Foo());
+//   EXPECT_EQ(NULL, a_pointer);
 //   ASSERT_LT(i, array_size);
 //   ASSERT_GT(records.size(), 0) << "There is no record left.";
 
-#define EXPECT_EQ(val1, val2) \
+#define EXPECT_EQ(expected, actual) \
   EXPECT_PRED_FORMAT2(::testing::internal:: \
-                      EqHelper<GTEST_IS_NULL_LITERAL_(val1)>::Compare, \
-                      val1, val2)
-#define EXPECT_NE(val1, val2) \
-  EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
+                      EqHelper<GTEST_IS_NULL_LITERAL_(expected)>::Compare, \
+                      expected, actual)
+#define EXPECT_NE(expected, actual) \
+  EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperNE, expected, actual)
 #define EXPECT_LE(val1, val2) \
   EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
 #define EXPECT_LT(val1, val2) \
@@ -1970,10 +2005,10 @@ class TestWithParam : public Test, public WithParamInterface<T> {
 #define EXPECT_GT(val1, val2) \
   EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
 
-#define GTEST_ASSERT_EQ(val1, val2) \
+#define GTEST_ASSERT_EQ(expected, actual) \
   ASSERT_PRED_FORMAT2(::testing::internal:: \
-                      EqHelper<GTEST_IS_NULL_LITERAL_(val1)>::Compare, \
-                      val1, val2)
+                      EqHelper<GTEST_IS_NULL_LITERAL_(expected)>::Compare, \
+                      expected, actual)
 #define GTEST_ASSERT_NE(val1, val2) \
   ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
 #define GTEST_ASSERT_LE(val1, val2) \
@@ -2028,29 +2063,29 @@ class TestWithParam : public Test, public WithParamInterface<T> {
 //
 // These macros evaluate their arguments exactly once.
 
-#define EXPECT_STREQ(s1, s2) \
-  EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, s1, s2)
+#define EXPECT_STREQ(expected, actual) \
+  EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, expected, actual)
 #define EXPECT_STRNE(s1, s2) \
   EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
-#define EXPECT_STRCASEEQ(s1, s2) \
-  EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, s1, s2)
+#define EXPECT_STRCASEEQ(expected, actual) \
+  EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, expected, actual)
 #define EXPECT_STRCASENE(s1, s2)\
   EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
 
-#define ASSERT_STREQ(s1, s2) \
-  ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, s1, s2)
+#define ASSERT_STREQ(expected, actual) \
+  ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, expected, actual)
 #define ASSERT_STRNE(s1, s2) \
   ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
-#define ASSERT_STRCASEEQ(s1, s2) \
-  ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, s1, s2)
+#define ASSERT_STRCASEEQ(expected, actual) \
+  ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, expected, actual)
 #define ASSERT_STRCASENE(s1, s2)\
   ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
 
 // Macros for comparing floating-point numbers.
 //
-//    * {ASSERT|EXPECT}_FLOAT_EQ(val1, val2):
+//    * {ASSERT|EXPECT}_FLOAT_EQ(expected, actual):
 //         Tests that two float values are almost equal.
-//    * {ASSERT|EXPECT}_DOUBLE_EQ(val1, val2):
+//    * {ASSERT|EXPECT}_DOUBLE_EQ(expected, actual):
 //         Tests that two double values are almost equal.
 //    * {ASSERT|EXPECT}_NEAR(v1, v2, abs_error):
 //         Tests that v1 and v2 are within the given distance to each other.
@@ -2060,21 +2095,21 @@ class TestWithParam : public Test, public WithParamInterface<T> {
 // FloatingPoint template class in gtest-internal.h if you are
 // interested in the implementation details.
 
-#define EXPECT_FLOAT_EQ(val1, val2)\
+#define EXPECT_FLOAT_EQ(expected, actual)\
   EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
-                      val1, val2)
+                      expected, actual)
 
-#define EXPECT_DOUBLE_EQ(val1, val2)\
+#define EXPECT_DOUBLE_EQ(expected, actual)\
   EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
-                      val1, val2)
+                      expected, actual)
 
-#define ASSERT_FLOAT_EQ(val1, val2)\
+#define ASSERT_FLOAT_EQ(expected, actual)\
   ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
-                      val1, val2)
+                      expected, actual)
 
-#define ASSERT_DOUBLE_EQ(val1, val2)\
+#define ASSERT_DOUBLE_EQ(expected, actual)\
   ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
-                      val1, val2)
+                      expected, actual)
 
 #define EXPECT_NEAR(val1, val2, abs_error)\
   EXPECT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
@@ -2137,57 +2172,6 @@ GTEST_API_ AssertionResult DoubleLE(const char* expr1, const char* expr2,
 #define EXPECT_NO_FATAL_FAILURE(statement) \
     GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_NONFATAL_FAILURE_)
 
-// Causes a trace (including the given source file path and line number,
-// and the given message) to be included in every test failure message generated
-// by code in the scope of the lifetime of an instance of this class. The effect
-// is undone with the destruction of the instance.
-//
-// The message argument can be anything streamable to std::ostream.
-//
-// Example:
-//   testing::ScopedTrace trace("file.cc", 123, "message");
-//
-class GTEST_API_ ScopedTrace {
- public:
-  // The c'tor pushes the given source file location and message onto
-  // a trace stack maintained by Google Test.
-
-  // Template version. Uses Message() to convert the values into strings.
-  // Slow, but flexible.
-  template <typename T>
-  ScopedTrace(const char* file, int line, const T& message) {
-    PushTrace(file, line, (Message() << message).GetString());
-  }
-
-  // Optimize for some known types.
-  ScopedTrace(const char* file, int line, const char* message) {
-    PushTrace(file, line, message ? message : "(null)");
-  }
-
-#if GTEST_HAS_GLOBAL_STRING
-  ScopedTrace(const char* file, int line, const ::string& message) {
-    PushTrace(file, line, message);
-  }
-#endif
-
-  ScopedTrace(const char* file, int line, const std::string& message) {
-    PushTrace(file, line, message);
-  }
-
-  // The d'tor pops the info pushed by the c'tor.
-  //
-  // Note that the d'tor is not virtual in order to be efficient.
-  // Don't inherit from ScopedTrace!
-  ~ScopedTrace();
-
- private:
-  void PushTrace(const char* file, int line, std::string message);
-
-  GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace);
-} GTEST_ATTRIBUTE_UNUSED_;  // A ScopedTrace object does its job in its
-                            // c'tor and d'tor.  Therefore it doesn't
-                            // need to be used otherwise.
-
 // Causes a trace (including the source file path, the current line
 // number, and the given message) to be included in every test failure
 // message generated by code in the current scope.  The effect is
@@ -2199,14 +2183,9 @@ class GTEST_API_ ScopedTrace {
 // of the dummy variable name, thus allowing multiple SCOPED_TRACE()s
 // to appear in the same block - as long as they are on different
 // lines.
-//
-// Assuming that each thread maintains its own stack of traces.
-// Therefore, a SCOPED_TRACE() would (correctly) only affect the
-// assertions in its own thread.
 #define SCOPED_TRACE(message) \
-  ::testing::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)(\
-    __FILE__, __LINE__, (message))
-
+  ::testing::internal::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)(\
+    __FILE__, __LINE__, ::testing::Message() << (message))
 
 // Compile-time assertion for type equality.
 // StaticAssertTypeEq<type1, type2>() compiles iff type1 and type2 are
@@ -2286,7 +2265,7 @@ bool StaticAssertTypeEq() {
 // name of the test within the test case.
 //
 // A test fixture class must be declared earlier.  The user should put
-// the test code between braces after using this macro.  Example:
+// his test code between braces after using this macro.  Example:
 //
 //   class FooTest : public testing::Test {
 //    protected:
@@ -2301,22 +2280,14 @@ bool StaticAssertTypeEq() {
 //   }
 //
 //   TEST_F(FooTest, ReturnsElementCountCorrectly) {
-//     EXPECT_EQ(a_.size(), 0);
-//     EXPECT_EQ(b_.size(), 1);
+//     EXPECT_EQ(0, a_.size());
+//     EXPECT_EQ(1, b_.size());
 //   }
 
 #define TEST_F(test_fixture, test_name)\
   GTEST_TEST_(test_fixture, test_name, test_fixture, \
               ::testing::internal::GetTypeId<test_fixture>())
 
-// Returns a path to temporary directory.
-// Tries to determine an appropriate directory for the platform.
-GTEST_API_ std::string TempDir();
-
-#ifdef _MSC_VER
-#  pragma warning(pop)
-#endif
-
 }  // namespace testing
 
 // Use this function in main() to run all tests.  It returns 0 if all
@@ -2333,6 +2304,4 @@ inline int RUN_ALL_TESTS() {
   return ::testing::UnitTest::GetInstance()->Run();
 }
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 #endif  // GTEST_INCLUDE_GTEST_GTEST_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest_pred_impl.h b/gtests/google_test/gtest/include/gtest/gtest_pred_impl.h
index 0c1105cb8..30ae712f5 100644
--- a/gtests/google_test/gtest/include/gtest/gtest_pred_impl.h
+++ b/gtests/google_test/gtest/include/gtest/gtest_pred_impl.h
@@ -27,19 +27,18 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// This file is AUTOMATICALLY GENERATED on 01/02/2018 by command
+// This file is AUTOMATICALLY GENERATED on 10/31/2011 by command
 // 'gen_gtest_pred_impl.py 5'.  DO NOT EDIT BY HAND!
 //
 // Implements a family of generic predicate assertion macros.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
 #define GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
 
-#include "gtest/gtest.h"
-
-namespace testing {
+// Makes sure this header is not included before gtest.h.
+#ifndef GTEST_INCLUDE_GTEST_GTEST_H_
+# error Do not include gtest_pred_impl.h directly.  Include gtest.h instead.
+#endif  // GTEST_INCLUDE_GTEST_GTEST_H_
 
 // This header implements a family of generic predicate assertion
 // macros:
@@ -67,6 +66,8 @@ namespace testing {
 // We also define the EXPECT_* variations.
 //
 // For now we only support predicates whose arity is at most 5.
+// Please email googletestframework@googlegroups.com if you need
+// support for higher arities.
 
 // GTEST_ASSERT_ is the basic statement to which all of the assertions
 // in this file reduce.  Don't use this in your code.
@@ -354,6 +355,4 @@ AssertionResult AssertPred5Helper(const char* pred_text,
 
 
 
-}  // namespace testing
-
 #endif  // GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
diff --git a/gtests/google_test/gtest/include/gtest/gtest_prod.h b/gtests/google_test/gtest/include/gtest/gtest_prod.h
index e651671eb..da80ddc6c 100644
--- a/gtests/google_test/gtest/include/gtest/gtest_prod.h
+++ b/gtests/google_test/gtest/include/gtest/gtest_prod.h
@@ -26,10 +26,10 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 //
-// Google C++ Testing and Mocking Framework definitions useful in production code.
-// GOOGLETEST_CM0003 DO NOT DELETE
+// Author: wan@google.com (Zhanyong Wan)
+//
+// Google C++ Testing Framework definitions useful in production code.
 
 #ifndef GTEST_INCLUDE_GTEST_GTEST_PROD_H_
 #define GTEST_INCLUDE_GTEST_GTEST_PROD_H_
@@ -40,20 +40,17 @@
 //
 // class MyClass {
 //  private:
-//   void PrivateMethod();
-//   FRIEND_TEST(MyClassTest, PrivateMethodWorks);
+//   void MyMethod();
+//   FRIEND_TEST(MyClassTest, MyMethod);
 // };
 //
 // class MyClassTest : public testing::Test {
 //   // ...
 // };
 //
-// TEST_F(MyClassTest, PrivateMethodWorks) {
-//   // Can call MyClass::PrivateMethod() here.
+// TEST_F(MyClassTest, MyMethod) {
+//   // Can call MyClass::MyMethod() here.
 // }
-//
-// Note: The test class must be in the same namespace as the class being tested.
-// For example, putting MyClassTest in an anonymous namespace will not work.
 
 #define FRIEND_TEST(test_case_name, test_name)\
 friend class test_case_name##_##test_name##_Test
diff --git a/gtests/google_test/gtest/include/gtest/internal/custom/README.md b/gtests/google_test/gtest/include/gtest/internal/custom/README.md
deleted file mode 100644
index ff391fb4e..000000000
--- a/gtests/google_test/gtest/include/gtest/internal/custom/README.md
+++ /dev/null
@@ -1,56 +0,0 @@
-# Customization Points
-
-The custom directory is an injection point for custom user configurations.
-
-## Header `gtest.h`
-
-### The following macros can be defined:
-
-*   `GTEST_OS_STACK_TRACE_GETTER_` - The name of an implementation of
-    `OsStackTraceGetterInterface`.
-*   `GTEST_CUSTOM_TEMPDIR_FUNCTION_` - An override for `testing::TempDir()`. See
-    `testing::TempDir` for semantics and signature.
-
-## Header `gtest-port.h`
-
-The following macros can be defined:
-
-### Flag related macros:
-
-*   `GTEST_FLAG(flag_name)`
-*   `GTEST_USE_OWN_FLAGFILE_FLAG_` - Define to 0 when the system provides its
-    own flagfile flag parsing.
-*   `GTEST_DECLARE_bool_(name)`
-*   `GTEST_DECLARE_int32_(name)`
-*   `GTEST_DECLARE_string_(name)`
-*   `GTEST_DEFINE_bool_(name, default_val, doc)`
-*   `GTEST_DEFINE_int32_(name, default_val, doc)`
-*   `GTEST_DEFINE_string_(name, default_val, doc)`
-
-### Logging:
-
-*   `GTEST_LOG_(severity)`
-*   `GTEST_CHECK_(condition)`
-*   Functions `LogToStderr()` and `FlushInfoLog()` have to be provided too.
-
-### Threading:
-
-*   `GTEST_HAS_NOTIFICATION_` - Enabled if Notification is already provided.
-*   `GTEST_HAS_MUTEX_AND_THREAD_LOCAL_` - Enabled if `Mutex` and `ThreadLocal`
-    are already provided. Must also provide `GTEST_DECLARE_STATIC_MUTEX_(mutex)`
-    and `GTEST_DEFINE_STATIC_MUTEX_(mutex)`
-*   `GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks)`
-*   `GTEST_LOCK_EXCLUDED_(locks)`
-
-### Underlying library support features
-
-*   `GTEST_HAS_CXXABI_H_`
-
-### Exporting API symbols:
-
-*   `GTEST_API_` - Specifier for exported symbols.
-
-## Header `gtest-printers.h`
-
-*   See documentation at `gtest/gtest-printers.h` for details on how to define a
-    custom printer.
diff --git a/gtests/google_test/gtest/include/gtest/internal/custom/gtest-port.h b/gtests/google_test/gtest/include/gtest/internal/custom/gtest-port.h
deleted file mode 100644
index cd85d956d..000000000
--- a/gtests/google_test/gtest/include/gtest/internal/custom/gtest-port.h
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2015, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Injection point for custom user configurations. See README for details
-//
-// ** Custom implementation starts here **
-
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PORT_H_
-#define GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PORT_H_
-
-#endif  // GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PORT_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/custom/gtest-printers.h b/gtests/google_test/gtest/include/gtest/internal/custom/gtest-printers.h
deleted file mode 100644
index eb4467abc..000000000
--- a/gtests/google_test/gtest/include/gtest/internal/custom/gtest-printers.h
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2015, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// This file provides an injection point for custom printers in a local
-// installation of gTest.
-// It will be included from gtest-printers.h and the overrides in this file
-// will be visible to everyone.
-//
-// Injection point for custom user configurations. See README for details
-//
-// ** Custom implementation starts here **
-
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
-#define GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
-
-#endif  // GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_PRINTERS_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/custom/gtest.h b/gtests/google_test/gtest/include/gtest/internal/custom/gtest.h
deleted file mode 100644
index 4c8e07be2..000000000
--- a/gtests/google_test/gtest/include/gtest/internal/custom/gtest.h
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2015, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Injection point for custom user configurations. See README for details
-//
-// ** Custom implementation starts here **
-
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_H_
-#define GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_H_
-
-#endif  // GTEST_INCLUDE_GTEST_INTERNAL_CUSTOM_GTEST_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-death-test-internal.h b/gtests/google_test/gtest/include/gtest/internal/gtest-death-test-internal.h
index 0a9b42c8a..2b3a78f5b 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-death-test-internal.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-death-test-internal.h
@@ -27,11 +27,12 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// The Google C++ Testing and Mocking Framework (Google Test)
+// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee)
+//
+// The Google C++ Testing Framework (Google Test)
 //
 // This header file defines internal utilities needed for implementing
 // death tests.  They are subject to change without notice.
-// GOOGLETEST_CM0001 DO NOT DELETE
 
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
@@ -52,9 +53,6 @@ const char kInternalRunDeathTestFlag[] = "internal_run_death_test";
 
 #if GTEST_HAS_DEATH_TEST
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 // DeathTest is a class that hides much of the complexity of the
 // GTEST_DEATH_TEST_ macro.  It is abstract; its static Create method
 // returns a concrete class that depends on the prevailing death test
@@ -138,8 +136,6 @@ class GTEST_API_ DeathTest {
   GTEST_DISALLOW_COPY_AND_ASSIGN_(DeathTest);
 };
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 // Factory interface for death tests.  May be mocked out for testing.
 class DeathTestFactory {
  public:
@@ -222,18 +218,14 @@ GTEST_API_ bool ExitedUnsuccessfully(int exit_status);
 // can be streamed.
 
 // This macro is for implementing ASSERT/EXPECT_DEBUG_DEATH when compiled in
-// NDEBUG mode. In this case we need the statements to be executed and the macro
-// must accept a streamed message even though the message is never printed.
-// The regex object is not evaluated, but it is used to prevent "unused"
-// warnings and to avoid an expression that doesn't compile in debug mode.
-#define GTEST_EXECUTE_STATEMENT_(statement, regex)             \
-  GTEST_AMBIGUOUS_ELSE_BLOCKER_                                \
-  if (::testing::internal::AlwaysTrue()) {                     \
-    GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
-  } else if (!::testing::internal::AlwaysTrue()) {             \
-    const ::testing::internal::RE& gtest_regex = (regex);      \
-    static_cast<void>(gtest_regex);                            \
-  } else                                                       \
+// NDEBUG mode. In this case we need the statements to be executed, the regex is
+// ignored, and the macro must accept a streamed message even though the message
+// is never printed.
+# define GTEST_EXECUTE_STATEMENT_(statement, regex) \
+  GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+  if (::testing::internal::AlwaysTrue()) { \
+     GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
+  } else \
     ::testing::Message()
 
 // A class representing the parsed contents of the
@@ -272,6 +264,53 @@ class InternalRunDeathTestFlag {
 // the flag is specified; otherwise returns NULL.
 InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag();
 
+#else  // GTEST_HAS_DEATH_TEST
+
+// This macro is used for implementing macros such as
+// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
+// death tests are not supported. Those macros must compile on such systems
+// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
+// systems that support death tests. This allows one to write such a macro
+// on a system that does not support death tests and be sure that it will
+// compile on a death-test supporting system.
+//
+// Parameters:
+//   statement -  A statement that a macro such as EXPECT_DEATH would test
+//                for program termination. This macro has to make sure this
+//                statement is compiled but not executed, to ensure that
+//                EXPECT_DEATH_IF_SUPPORTED compiles with a certain
+//                parameter iff EXPECT_DEATH compiles with it.
+//   regex     -  A regex that a macro such as EXPECT_DEATH would use to test
+//                the output of statement.  This parameter has to be
+//                compiled but not evaluated by this macro, to ensure that
+//                this macro only accepts expressions that a macro such as
+//                EXPECT_DEATH would accept.
+//   terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED
+//                and a return statement for ASSERT_DEATH_IF_SUPPORTED.
+//                This ensures that ASSERT_DEATH_IF_SUPPORTED will not
+//                compile inside functions where ASSERT_DEATH doesn't
+//                compile.
+//
+//  The branch that has an always false condition is used to ensure that
+//  statement and regex are compiled (and thus syntactically correct) but
+//  never executed. The unreachable code macro protects the terminator
+//  statement from generating an 'unreachable code' warning in case
+//  statement unconditionally returns or throws. The Message constructor at
+//  the end allows the syntax of streaming additional messages into the
+//  macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH.
+# define GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, terminator) \
+    GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
+    if (::testing::internal::AlwaysTrue()) { \
+      GTEST_LOG_(WARNING) \
+          << "Death tests are not supported on this platform.\n" \
+          << "Statement '" #statement "' cannot be verified."; \
+    } else if (::testing::internal::AlwaysFalse()) { \
+      ::testing::internal::RE::PartialMatch(".*", (regex)); \
+      GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
+      terminator; \
+    } else \
+      ::testing::Message()
+
 #endif  // GTEST_HAS_DEATH_TEST
 
 }  // namespace internal
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-filepath.h b/gtests/google_test/gtest/include/gtest/internal/gtest-filepath.h
index ae38d95bf..7a13b4b0d 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-filepath.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-filepath.h
@@ -27,24 +27,21 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
+// Author: keith.ray@gmail.com (Keith Ray)
+//
 // Google Test filepath utilities
 //
 // This header file declares classes and functions used internally by
 // Google Test.  They are subject to change without notice.
 //
-// This file is #included in gtest/internal/gtest-internal.h.
+// This file is #included in <gtest/internal/gtest-internal.h>.
 // Do not include this header file separately!
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
 
 #include "gtest/internal/gtest-string.h"
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 namespace testing {
 namespace internal {
 
@@ -206,6 +203,4 @@ class GTEST_API_ FilePath {
 }  // namespace internal
 }  // namespace testing
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-internal.h b/gtests/google_test/gtest/include/gtest/internal/gtest-internal.h
index 9593a45a0..21a0f567b 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-internal.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-internal.h
@@ -27,13 +27,13 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// The Google C++ Testing and Mocking Framework (Google Test)
+// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee)
+//
+// The Google C++ Testing Framework (Google Test)
 //
 // This header file declares functions and macros used internally by
 // Google Test.  They are subject to change without notice.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
 
@@ -55,14 +55,13 @@
 #include <string.h>
 #include <iomanip>
 #include <limits>
-#include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "gtest/gtest-message.h"
-#include "gtest/internal/gtest-filepath.h"
 #include "gtest/internal/gtest-string.h"
+#include "gtest/internal/gtest-filepath.h"
 #include "gtest/internal/gtest-type-util.h"
 
 // Due to C++ preprocessor weirdness, we need double indirection to
@@ -76,9 +75,6 @@
 #define GTEST_CONCAT_TOKEN_(foo, bar) GTEST_CONCAT_TOKEN_IMPL_(foo, bar)
 #define GTEST_CONCAT_TOKEN_IMPL_(foo, bar) foo ## bar
 
-// Stringifies its argument.
-#define GTEST_STRINGIFY_(name) #name
-
 class ProtocolMessage;
 namespace proto2 { class Message; }
 
@@ -99,9 +95,13 @@ template <typename T>
 namespace internal {
 
 struct TraceInfo;                      // Information about a trace point.
+class ScopedTrace;                     // Implements scoped trace.
 class TestInfoImpl;                    // Opaque implementation of TestInfo
 class UnitTestImpl;                    // Opaque implementation of UnitTest
 
+// How many times InitGoogleTest() has been called.
+GTEST_API_ extern int g_init_gtest_count;
+
 // The text used in failure messages to indicate the start of the
 // stack trace.
 GTEST_API_ extern const char kStackTraceMarker[];
@@ -141,9 +141,6 @@ GTEST_API_ std::string AppendUserMessage(
 
 #if GTEST_HAS_EXCEPTIONS
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4275 \
-/* an exported class was derived from a class that was not exported */)
-
 // This exception is thrown by (and only by) a failed Google Test
 // assertion when GTEST_FLAG(throw_on_failure) is true (if exceptions
 // are enabled).  We derive it from std::runtime_error, which is for
@@ -155,15 +152,32 @@ class GTEST_API_ GoogleTestFailureException : public ::std::runtime_error {
   explicit GoogleTestFailureException(const TestPartResult& failure);
 };
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4275
-
 #endif  // GTEST_HAS_EXCEPTIONS
 
+// A helper class for creating scoped traces in user programs.
+class GTEST_API_ ScopedTrace {
+ public:
+  // The c'tor pushes the given source file location and message onto
+  // a trace stack maintained by Google Test.
+  ScopedTrace(const char* file, int line, const Message& message);
+
+  // The d'tor pops the info pushed by the c'tor.
+  //
+  // Note that the d'tor is not virtual in order to be efficient.
+  // Don't inherit from ScopedTrace!
+  ~ScopedTrace();
+
+ private:
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace);
+} GTEST_ATTRIBUTE_UNUSED_;  // A ScopedTrace object does its job in its
+                            // c'tor and d'tor.  Therefore it doesn't
+                            // need to be used otherwise.
+
 namespace edit_distance {
 // Returns the optimal edits to go from 'left' to 'right'.
 // All edits cost the same, with replace having lower priority than
 // add/remove.
-// Simple implementation of the Wagner-Fischer algorithm.
+// Simple implementation of the Wagner–Fischer algorithm.
 // See http://en.wikipedia.org/wiki/Wagner-Fischer_algorithm
 enum EditType { kMatch, kAdd, kRemove, kReplace };
 GTEST_API_ std::vector<EditType> CalculateOptimalEdits(
@@ -489,14 +503,6 @@ GTEST_API_ AssertionResult IsHRESULTFailure(const char* expr,
 typedef void (*SetUpTestCaseFunc)();
 typedef void (*TearDownTestCaseFunc)();
 
-struct CodeLocation {
-  CodeLocation(const std::string& a_file, int a_line)
-      : file(a_file), line(a_line) {}
-
-  std::string file;
-  int line;
-};
-
 // Creates a new TestInfo object and registers it with Google Test;
 // returns the created object.
 //
@@ -508,7 +514,6 @@ struct CodeLocation {
 //                     this is not a typed or a type-parameterized test.
 //   value_param       text representation of the test's value parameter,
 //                     or NULL if this is not a type-parameterized test.
-//   code_location:    code location where the test is defined
 //   fixture_class_id: ID of the test fixture class
 //   set_up_tc:        pointer to the function that sets up the test case
 //   tear_down_tc:     pointer to the function that tears down the test case
@@ -520,7 +525,6 @@ GTEST_API_ TestInfo* MakeAndRegisterTestInfo(
     const char* name,
     const char* type_param,
     const char* value_param,
-    CodeLocation code_location,
     TypeId fixture_class_id,
     SetUpTestCaseFunc set_up_tc,
     TearDownTestCaseFunc tear_down_tc,
@@ -533,9 +537,6 @@ GTEST_API_ bool SkipPrefix(const char* prefix, const char** pstr);
 
 #if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
-GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
-/* class A needs to have dll-interface to be used by clients of class B */)
-
 // State of the definition of a type-parameterized test case.
 class GTEST_API_ TypedTestCasePState {
  public:
@@ -553,21 +554,10 @@ class GTEST_API_ TypedTestCasePState {
       fflush(stderr);
       posix::Abort();
     }
-    registered_tests_.insert(
-        ::std::make_pair(test_name, CodeLocation(file, line)));
+    defined_test_names_.insert(test_name);
     return true;
   }
 
-  bool TestExists(const std::string& test_name) const {
-    return registered_tests_.count(test_name) > 0;
-  }
-
-  const CodeLocation& GetCodeLocation(const std::string& test_name) const {
-    RegisteredTestsMap::const_iterator it = registered_tests_.find(test_name);
-    GTEST_CHECK_(it != registered_tests_.end());
-    return it->second;
-  }
-
   // Verifies that registered_tests match the test names in
   // defined_test_names_; returns registered_tests if successful, or
   // aborts the program otherwise.
@@ -575,14 +565,10 @@ class GTEST_API_ TypedTestCasePState {
       const char* file, int line, const char* registered_tests);
 
  private:
-  typedef ::std::map<std::string, CodeLocation> RegisteredTestsMap;
-
   bool registered_;
-  RegisteredTestsMap registered_tests_;
+  ::std::set<const char*> defined_test_names_;
 };
 
-GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
-
 // Skips to the first non-space char after the first comma in 'str';
 // returns NULL if no comma is found in 'str'.
 inline const char* SkipComma(const char* str) {
@@ -601,11 +587,6 @@ inline std::string GetPrefixUntilComma(const char* str) {
   return comma == NULL ? str : std::string(str, comma);
 }
 
-// Splits a given string on a given delimiter, populating a given
-// vector with the fields.
-void SplitString(const ::std::string& str, char delimiter,
-                 ::std::vector< ::std::string>* dest);
-
 // TypeParameterizedTest<Fixture, TestSel, Types>::Register()
 // registers a list of type-parameterized tests with Google Test.  The
 // return value is insignificant - we just need to return something
@@ -620,10 +601,8 @@ class TypeParameterizedTest {
   // specified in INSTANTIATE_TYPED_TEST_CASE_P(Prefix, TestCase,
   // Types).  Valid values for 'index' are [0, N - 1] where N is the
   // length of Types.
-  static bool Register(const char* prefix,
-                       const CodeLocation& code_location,
-                       const char* case_name, const char* test_names,
-                       int index) {
+  static bool Register(const char* prefix, const char* case_name,
+                       const char* test_names, int index) {
     typedef typename Types::Head Type;
     typedef Fixture<Type> FixtureClass;
     typedef typename GTEST_BIND_(TestSel, Type) TestClass;
@@ -633,10 +612,9 @@ class TypeParameterizedTest {
     MakeAndRegisterTestInfo(
         (std::string(prefix) + (prefix[0] == '\0' ? "" : "/") + case_name + "/"
          + StreamableToString(index)).c_str(),
-        StripTrailingSpaces(GetPrefixUntilComma(test_names)).c_str(),
+        GetPrefixUntilComma(test_names).c_str(),
         GetTypeName<Type>().c_str(),
         NULL,  // No value parameter.
-        code_location,
         GetTypeId<FixtureClass>(),
         TestClass::SetUpTestCase,
         TestClass::TearDownTestCase,
@@ -644,7 +622,7 @@ class TypeParameterizedTest {
 
     // Next, recurses (at compile time) with the tail of the type list.
     return TypeParameterizedTest<Fixture, TestSel, typename Types::Tail>
-        ::Register(prefix, code_location, case_name, test_names, index + 1);
+        ::Register(prefix, case_name, test_names, index + 1);
   }
 };
 
@@ -652,9 +630,8 @@ class TypeParameterizedTest {
 template <GTEST_TEMPLATE_ Fixture, class TestSel>
 class TypeParameterizedTest<Fixture, TestSel, Types0> {
  public:
-  static bool Register(const char* /*prefix*/, const CodeLocation&,
-                       const char* /*case_name*/, const char* /*test_names*/,
-                       int /*index*/) {
+  static bool Register(const char* /*prefix*/, const char* /*case_name*/,
+                       const char* /*test_names*/, int /*index*/) {
     return true;
   }
 };
@@ -666,31 +643,17 @@ class TypeParameterizedTest<Fixture, TestSel, Types0> {
 template <GTEST_TEMPLATE_ Fixture, typename Tests, typename Types>
 class TypeParameterizedTestCase {
  public:
-  static bool Register(const char* prefix, CodeLocation code_location,
-                       const TypedTestCasePState* state,
-                       const char* case_name, const char* test_names) {
-    std::string test_name = StripTrailingSpaces(
-        GetPrefixUntilComma(test_names));
-    if (!state->TestExists(test_name)) {
-      fprintf(stderr, "Failed to get code location for test %s.%s at %s.",
-              case_name, test_name.c_str(),
-              FormatFileLocation(code_location.file.c_str(),
-                                 code_location.line).c_str());
-      fflush(stderr);
-      posix::Abort();
-    }
-    const CodeLocation& test_location = state->GetCodeLocation(test_name);
-
+  static bool Register(const char* prefix, const char* case_name,
+                       const char* test_names) {
     typedef typename Tests::Head Head;
 
     // First, register the first test in 'Test' for each type in 'Types'.
     TypeParameterizedTest<Fixture, Head, Types>::Register(
-        prefix, test_location, case_name, test_names, 0);
+        prefix, case_name, test_names, 0);
 
     // Next, recurses (at compile time) with the tail of the test list.
     return TypeParameterizedTestCase<Fixture, typename Tests::Tail, Types>
-        ::Register(prefix, code_location, state,
-                   case_name, SkipComma(test_names));
+        ::Register(prefix, case_name, SkipComma(test_names));
   }
 };
 
@@ -698,9 +661,8 @@ class TypeParameterizedTestCase {
 template <GTEST_TEMPLATE_ Fixture, typename Types>
 class TypeParameterizedTestCase<Fixture, Templates0, Types> {
  public:
-  static bool Register(const char* /*prefix*/, const CodeLocation&,
-                       const TypedTestCasePState* /*state*/,
-                       const char* /*case_name*/, const char* /*test_names*/) {
+  static bool Register(const char* /*prefix*/, const char* /*case_name*/,
+                       const char* /*test_names*/) {
     return true;
   }
 };
@@ -817,6 +779,31 @@ struct RemoveConst<T[N]> {
 #define GTEST_REMOVE_REFERENCE_AND_CONST_(T) \
     GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(T))
 
+// Adds reference to a type if it is not a reference type,
+// otherwise leaves it unchanged.  This is the same as
+// tr1::add_reference, which is not widely available yet.
+template <typename T>
+struct AddReference { typedef T& type; };  // NOLINT
+template <typename T>
+struct AddReference<T&> { typedef T& type; };  // NOLINT
+
+// A handy wrapper around AddReference that works when the argument T
+// depends on template parameters.
+#define GTEST_ADD_REFERENCE_(T) \
+    typename ::testing::internal::AddReference<T>::type
+
+// Adds a reference to const on top of T as necessary.  For example,
+// it transforms
+//
+//   char         ==> const char&
+//   const char   ==> const char&
+//   char&        ==> const char&
+//   const char&  ==> const char&
+//
+// The argument T must depend on some template parameters.
+#define GTEST_REFERENCE_TO_CONST_(T) \
+    GTEST_ADD_REFERENCE_(const GTEST_REMOVE_REFERENCE_(T))
+
 // ImplicitlyConvertible<From, To>::value is a compile-time bool
 // constant that's true iff type From can be implicitly converted to
 // type To.
@@ -886,11 +873,8 @@ struct IsAProtocolMessage
 // a container class by checking the type of IsContainerTest<C>(0).
 // The value of the expression is insignificant.
 //
-// In C++11 mode we check the existence of a const_iterator and that an
-// iterator is properly implemented for the container.
-//
-// For pre-C++11 that we look for both C::iterator and C::const_iterator.
-// The reason is that C++ injects the name of a class as a member of the
+// Note that we look for both C::iterator and C::const_iterator.  The
+// reason is that C++ injects the name of a class as a member of the
 // class itself (e.g. you can refer to class iterator as either
 // 'iterator' or 'iterator::iterator').  If we look for C::iterator
 // only, for example, we would mistakenly think that a class named
@@ -900,96 +884,17 @@ struct IsAProtocolMessage
 // IsContainerTest(typename C::const_iterator*) and
 // IsContainerTest(...) doesn't work with Visual Age C++ and Sun C++.
 typedef int IsContainer;
-#if GTEST_LANG_CXX11
-template <class C,
-          class Iterator = decltype(::std::declval<const C&>().begin()),
-          class = decltype(::std::declval<const C&>().end()),
-          class = decltype(++::std::declval<Iterator&>()),
-          class = decltype(*::std::declval<Iterator>()),
-          class = typename C::const_iterator>
-IsContainer IsContainerTest(int /* dummy */) {
-  return 0;
-}
-#else
 template <class C>
 IsContainer IsContainerTest(int /* dummy */,
                             typename C::iterator* /* it */ = NULL,
                             typename C::const_iterator* /* const_it */ = NULL) {
   return 0;
 }
-#endif  // GTEST_LANG_CXX11
 
 typedef char IsNotContainer;
 template <class C>
 IsNotContainer IsContainerTest(long /* dummy */) { return '\0'; }
 
-// Trait to detect whether a type T is a hash table.
-// The heuristic used is that the type contains an inner type `hasher` and does
-// not contain an inner type `reverse_iterator`.
-// If the container is iterable in reverse, then order might actually matter.
-template <typename T>
-struct IsHashTable {
- private:
-  template <typename U>
-  static char test(typename U::hasher*, typename U::reverse_iterator*);
-  template <typename U>
-  static int test(typename U::hasher*, ...);
-  template <typename U>
-  static char test(...);
-
- public:
-  static const bool value = sizeof(test<T>(0, 0)) == sizeof(int);
-};
-
-template <typename T>
-const bool IsHashTable<T>::value;
-
-template<typename T>
-struct VoidT {
-    typedef void value_type;
-};
-
-template <typename T, typename = void>
-struct HasValueType : false_type {};
-template <typename T>
-struct HasValueType<T, VoidT<typename T::value_type> > : true_type {
-};
-
-template <typename C,
-          bool = sizeof(IsContainerTest<C>(0)) == sizeof(IsContainer),
-          bool = HasValueType<C>::value>
-struct IsRecursiveContainerImpl;
-
-template <typename C, bool HV>
-struct IsRecursiveContainerImpl<C, false, HV> : public false_type {};
-
-// Since the IsRecursiveContainerImpl depends on the IsContainerTest we need to
-// obey the same inconsistencies as the IsContainerTest, namely check if
-// something is a container is relying on only const_iterator in C++11 and
-// is relying on both const_iterator and iterator otherwise
-template <typename C>
-struct IsRecursiveContainerImpl<C, true, false> : public false_type {};
-
-template <typename C>
-struct IsRecursiveContainerImpl<C, true, true> {
-  #if GTEST_LANG_CXX11
-  typedef typename IteratorTraits<typename C::const_iterator>::value_type
-      value_type;
-#else
-  typedef typename IteratorTraits<typename C::iterator>::value_type value_type;
-#endif
-  typedef is_same<value_type, C> type;
-};
-
-// IsRecursiveContainer<Type> is a unary compile-time predicate that
-// evaluates whether C is a recursive container type. A recursive container
-// type is a container type whose value_type is equal to the container type
-// itself. An example for a recursive container type is
-// boost::filesystem::path, whose iterator has a value_type that is equal to
-// boost::filesystem::path.
-template <typename C>
-struct IsRecursiveContainer : public IsRecursiveContainerImpl<C>::type {};
-
 // EnableIf<condition>::type is void when 'Cond' is true, and
 // undefined when 'Cond' is false.  To use SFINAE to make a function
 // overload only apply when a particular expression is true, add
@@ -1121,7 +1026,7 @@ class NativeArray {
  private:
   enum {
     kCheckTypeIsNotConstOrAReference = StaticAssertTypeEqHelper<
-        Element, GTEST_REMOVE_REFERENCE_AND_CONST_(Element)>::value
+        Element, GTEST_REMOVE_REFERENCE_AND_CONST_(Element)>::value,
   };
 
   // Initializes this object with a copy of the input.
@@ -1166,7 +1071,7 @@ class NativeArray {
 #define GTEST_SUCCESS_(message) \
   GTEST_MESSAGE_(message, ::testing::TestPartResult::kSuccess)
 
-// Suppress MSVC warning 4702 (unreachable code) for the code following
+// Suppresses MSVC warnings 4072 (unreachable code) for the code following
 // statement if it returns or throws (or doesn't return or throw in some
 // situations).
 #define GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement) \
@@ -1277,7 +1182,6 @@ class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) : public parent_class {\
   ::test_info_ =\
     ::testing::internal::MakeAndRegisterTestInfo(\
         #test_case_name, #test_name, NULL, NULL, \
-        ::testing::internal::CodeLocation(__FILE__, __LINE__), \
         (parent_id), \
         parent_class::SetUpTestCase, \
         parent_class::TearDownTestCase, \
@@ -1286,3 +1190,4 @@ class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) : public parent_class {\
 void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody()
 
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
+
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-linked_ptr.h b/gtests/google_test/gtest/include/gtest/internal/gtest-linked_ptr.h
index 082b87289..b1362cd00 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-linked_ptr.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-linked_ptr.h
@@ -27,6 +27,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
+// Authors: Dan Egnor (egnor@google.com)
+//
 // A "smart" pointer type with reference tracking.  Every pointer to a
 // particular object is kept on a circular linked list.  When the last pointer
 // to an object is destroyed or reassigned, the object is deleted.
@@ -60,11 +62,9 @@
 //       raw pointer (e.g. via get()) concurrently, and
 //     - it's safe to write to two linked_ptrs that point to the same
 //       shared object concurrently.
-// FIXME: rename this to safe_linked_ptr to avoid
+// TODO(wan@google.com): rename this to safe_linked_ptr to avoid
 // confusion with normal linked_ptr.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_LINKED_PTR_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_LINKED_PTR_H_
 
@@ -110,12 +110,7 @@ class linked_ptr_internal {
     MutexLock lock(&g_linked_ptr_mutex);
 
     linked_ptr_internal const* p = ptr;
-    while (p->next_ != ptr) {
-      assert(p->next_ != this &&
-             "Trying to join() a linked ring we are already in. "
-             "Is GMock thread safety enabled?");
-      p = p->next_;
-    }
+    while (p->next_ != ptr) p = p->next_;
     p->next_ = this;
     next_ = ptr;
   }
@@ -128,12 +123,7 @@ class linked_ptr_internal {
 
     if (next_ == this) return true;
     linked_ptr_internal const* p = next_;
-    while (p->next_ != this) {
-      assert(p->next_ != next_ &&
-             "Trying to depart() a linked ring we are not in. "
-             "Is GMock thread safety enabled?");
-      p = p->next_;
-    }
+    while (p->next_ != this) p = p->next_;
     p->next_ = next_;
     return false;
   }
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h b/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h
index f4df59919..6dbaf4b7a 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h
@@ -30,7 +30,8 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: vladl@google.com (Vlad Losev)
 
 // Type and function utilities for implementing parameterized tests.
 // This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
@@ -42,14 +43,17 @@
 // by the maximum arity of the implementation of tuple which is
 // currently set at 10.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
 
+// scripts/fuse_gtest.py depends on gtest's own header being #included
+// *unconditionally*.  Therefore these #includes cannot be moved
+// inside #if GTEST_HAS_PARAM_TEST.
 #include "gtest/internal/gtest-param-util.h"
 #include "gtest/internal/gtest-port.h"
 
+#if GTEST_HAS_PARAM_TEST
+
 namespace testing {
 
 // Forward declarations of ValuesIn(), which is implemented in
@@ -75,10 +79,7 @@ class ValueArray1 {
   explicit ValueArray1(T1 v1) : v1_(v1) {}
 
   template <typename T>
-  operator ParamGenerator<T>() const {
-    const T array[] = {static_cast<T>(v1_)};
-    return ValuesIn(array);
-  }
+  operator ParamGenerator<T>() const { return ValuesIn(&v1_, &v1_ + 1); }
 
  private:
   // No implementation - assignment is unsupported.
@@ -3204,7 +3205,7 @@ class CartesianProductGenerator2
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -3236,7 +3237,7 @@ class CartesianProductGenerator2
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_));
+        current_value_ = ParamType(*current1_, *current2_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -3258,7 +3259,7 @@ class CartesianProductGenerator2
     const typename ParamGenerator<T2>::iterator begin2_;
     const typename ParamGenerator<T2>::iterator end2_;
     typename ParamGenerator<T2>::iterator current2_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator2::Iterator
 
   // No implementation - assignment is unsupported.
@@ -3327,7 +3328,7 @@ class CartesianProductGenerator3
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -3363,7 +3364,7 @@ class CartesianProductGenerator3
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_));
+        current_value_ = ParamType(*current1_, *current2_, *current3_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -3389,7 +3390,7 @@ class CartesianProductGenerator3
     const typename ParamGenerator<T3>::iterator begin3_;
     const typename ParamGenerator<T3>::iterator end3_;
     typename ParamGenerator<T3>::iterator current3_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator3::Iterator
 
   // No implementation - assignment is unsupported.
@@ -3468,7 +3469,7 @@ class CartesianProductGenerator4
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -3508,8 +3509,8 @@ class CartesianProductGenerator4
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
-            *current4_));
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
+            *current4_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -3539,7 +3540,7 @@ class CartesianProductGenerator4
     const typename ParamGenerator<T4>::iterator begin4_;
     const typename ParamGenerator<T4>::iterator end4_;
     typename ParamGenerator<T4>::iterator current4_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator4::Iterator
 
   // No implementation - assignment is unsupported.
@@ -3626,7 +3627,7 @@ class CartesianProductGenerator5
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -3670,8 +3671,8 @@ class CartesianProductGenerator5
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
-            *current4_, *current5_));
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
+            *current4_, *current5_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -3705,7 +3706,7 @@ class CartesianProductGenerator5
     const typename ParamGenerator<T5>::iterator begin5_;
     const typename ParamGenerator<T5>::iterator end5_;
     typename ParamGenerator<T5>::iterator current5_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator5::Iterator
 
   // No implementation - assignment is unsupported.
@@ -3803,7 +3804,7 @@ class CartesianProductGenerator6
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -3851,8 +3852,8 @@ class CartesianProductGenerator6
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
-            *current4_, *current5_, *current6_));
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
+            *current4_, *current5_, *current6_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -3890,7 +3891,7 @@ class CartesianProductGenerator6
     const typename ParamGenerator<T6>::iterator begin6_;
     const typename ParamGenerator<T6>::iterator end6_;
     typename ParamGenerator<T6>::iterator current6_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator6::Iterator
 
   // No implementation - assignment is unsupported.
@@ -3997,7 +3998,7 @@ class CartesianProductGenerator7
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -4049,8 +4050,8 @@ class CartesianProductGenerator7
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
-            *current4_, *current5_, *current6_, *current7_));
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
+            *current4_, *current5_, *current6_, *current7_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -4092,7 +4093,7 @@ class CartesianProductGenerator7
     const typename ParamGenerator<T7>::iterator begin7_;
     const typename ParamGenerator<T7>::iterator end7_;
     typename ParamGenerator<T7>::iterator current7_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator7::Iterator
 
   // No implementation - assignment is unsupported.
@@ -4210,7 +4211,7 @@ class CartesianProductGenerator8
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -4266,8 +4267,8 @@ class CartesianProductGenerator8
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
-            *current4_, *current5_, *current6_, *current7_, *current8_));
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
+            *current4_, *current5_, *current6_, *current7_, *current8_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -4313,7 +4314,7 @@ class CartesianProductGenerator8
     const typename ParamGenerator<T8>::iterator begin8_;
     const typename ParamGenerator<T8>::iterator end8_;
     typename ParamGenerator<T8>::iterator current8_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator8::Iterator
 
   // No implementation - assignment is unsupported.
@@ -4439,7 +4440,7 @@ class CartesianProductGenerator9
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -4499,9 +4500,9 @@ class CartesianProductGenerator9
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
             *current4_, *current5_, *current6_, *current7_, *current8_,
-            *current9_));
+            *current9_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -4551,7 +4552,7 @@ class CartesianProductGenerator9
     const typename ParamGenerator<T9>::iterator begin9_;
     const typename ParamGenerator<T9>::iterator end9_;
     typename ParamGenerator<T9>::iterator current9_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator9::Iterator
 
   // No implementation - assignment is unsupported.
@@ -4686,7 +4687,7 @@ class CartesianProductGenerator10
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -4750,9 +4751,9 @@ class CartesianProductGenerator10
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType(*current1_, *current2_, *current3_,
+        current_value_ = ParamType(*current1_, *current2_, *current3_,
             *current4_, *current5_, *current6_, *current7_, *current8_,
-            *current9_, *current10_));
+            *current9_, *current10_);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -4806,7 +4807,7 @@ class CartesianProductGenerator10
     const typename ParamGenerator<T10>::iterator begin10_;
     const typename ParamGenerator<T10>::iterator end10_;
     typename ParamGenerator<T10>::iterator current10_;
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator10::Iterator
 
   // No implementation - assignment is unsupported.
@@ -5137,4 +5138,6 @@ CartesianProductHolder10(const Generator1& g1, const Generator2& g2,
 }  // namespace internal
 }  // namespace testing
 
+#endif  //  GTEST_HAS_PARAM_TEST
+
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h.pump b/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h.pump
index ae8c57b52..801a2fc7d 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h.pump
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-param-util-generated.h.pump
@@ -29,7 +29,8 @@ $var maxtuple = 10  $$ Maximum number of Combine arguments we want to support.
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: vladl@google.com (Vlad Losev)
 
 // Type and function utilities for implementing parameterized tests.
 // This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
@@ -41,14 +42,17 @@ $var maxtuple = 10  $$ Maximum number of Combine arguments we want to support.
 // by the maximum arity of the implementation of tuple which is
 // currently set at $maxtuple.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
 
+// scripts/fuse_gtest.py depends on gtest's own header being #included
+// *unconditionally*.  Therefore these #includes cannot be moved
+// inside #if GTEST_HAS_PARAM_TEST.
 #include "gtest/internal/gtest-param-util.h"
 #include "gtest/internal/gtest-port.h"
 
+#if GTEST_HAS_PARAM_TEST
+
 namespace testing {
 
 // Forward declarations of ValuesIn(), which is implemented in
@@ -68,14 +72,29 @@ internal::ParamGenerator<typename Container::value_type> ValuesIn(
 namespace internal {
 
 // Used in the Values() function to provide polymorphic capabilities.
-$range i 1..n
+template <typename T1>
+class ValueArray1 {
+ public:
+  explicit ValueArray1(T1 v1) : v1_(v1) {}
+
+  template <typename T>
+  operator ParamGenerator<T>() const { return ValuesIn(&v1_, &v1_ + 1); }
+
+ private:
+  // No implementation - assignment is unsupported.
+  void operator=(const ValueArray1& other);
+
+  const T1 v1_;
+};
+
+$range i 2..n
 $for i [[
 $range j 1..i
 
 template <$for j, [[typename T$j]]>
 class ValueArray$i {
  public:
-  $if i==1 [[explicit ]]ValueArray$i($for j, [[T$j v$j]]) : $for j, [[v$(j)_(v$j)]] {}
+  ValueArray$i($for j, [[T$j v$j]]) : $for j, [[v$(j)_(v$j)]] {}
 
   template <typename T>
   operator ParamGenerator<T>() const {
@@ -161,7 +180,7 @@ $for k [[
     virtual ParamIteratorInterface<ParamType>* Clone() const {
       return new Iterator(*this);
     }
-    virtual const ParamType* Current() const { return current_value_.get(); }
+    virtual const ParamType* Current() const { return &current_value_; }
     virtual bool Equals(const ParamIteratorInterface<ParamType>& other) const {
       // Having the same base generator guarantees that the other
       // iterator is of the same type and we can downcast.
@@ -193,7 +212,7 @@ $for k [[
 
     void ComputeCurrentValue() {
       if (!AtEnd())
-        current_value_.reset(new ParamType($for j, [[*current$(j)_]]));
+        current_value_ = ParamType($for j, [[*current$(j)_]]);
     }
     bool AtEnd() const {
       // We must report iterator past the end of the range when either of the
@@ -218,7 +237,7 @@ $for j [[
     typename ParamGenerator<T$j>::iterator current$(j)_;
 ]]
 
-    linked_ptr<ParamType> current_value_;
+    ParamType current_value_;
   };  // class CartesianProductGenerator$i::Iterator
 
   // No implementation - assignment is unsupported.
@@ -277,4 +296,6 @@ $for j [[
 }  // namespace internal
 }  // namespace testing
 
+#endif  //  GTEST_HAS_PARAM_TEST
+
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_GENERATED_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-param-util.h b/gtests/google_test/gtest/include/gtest/internal/gtest-param-util.h
index d64f620c4..d5e1028b0 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-param-util.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-param-util.h
@@ -26,49 +26,29 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: vladl@google.com (Vlad Losev)
 
 // Type and function utilities for implementing parameterized tests.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_H_
 
-#include <ctype.h>
-
 #include <iterator>
-#include <set>
 #include <utility>
 #include <vector>
 
+// scripts/fuse_gtest.py depends on gtest's own header being #included
+// *unconditionally*.  Therefore these #includes cannot be moved
+// inside #if GTEST_HAS_PARAM_TEST.
 #include "gtest/internal/gtest-internal.h"
 #include "gtest/internal/gtest-linked_ptr.h"
 #include "gtest/internal/gtest-port.h"
 #include "gtest/gtest-printers.h"
 
-namespace testing {
-
-// Input to a parameterized test name generator, describing a test parameter.
-// Consists of the parameter value and the integer parameter index.
-template <class ParamType>
-struct TestParamInfo {
-  TestParamInfo(const ParamType& a_param, size_t an_index) :
-    param(a_param),
-    index(an_index) {}
-  ParamType param;
-  size_t index;
-};
-
-// A builtin parameterized test name generator which returns the result of
-// testing::PrintToString.
-struct PrintToStringParamName {
-  template <class ParamType>
-  std::string operator()(const TestParamInfo<ParamType>& info) const {
-    return PrintToString(info.param);
-  }
-};
+#if GTEST_HAS_PARAM_TEST
 
+namespace testing {
 namespace internal {
 
 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
@@ -78,7 +58,7 @@ namespace internal {
 // TEST_P macro is used to define two tests with the same name
 // but in different namespaces.
 GTEST_API_ void ReportInvalidTestCaseType(const char* test_case_name,
-                                          CodeLocation code_location);
+                                          const char* file, int line);
 
 template <typename> class ParamGeneratorInterface;
 template <typename> class ParamGenerator;
@@ -226,7 +206,7 @@ class RangeGenerator : public ParamGeneratorInterface<T> {
       return base_;
     }
     virtual void Advance() {
-      value_ = static_cast<T>(value_ + step_);
+      value_ = value_ + step_;
       index_++;
     }
     virtual ParamIteratorInterface<T>* Clone() const {
@@ -263,7 +243,7 @@ class RangeGenerator : public ParamGeneratorInterface<T> {
                                const T& end,
                                const IncrementT& step) {
     int end_index = 0;
-    for (T i = begin; i < end; i = static_cast<T>(i + step))
+    for (T i = begin; i < end; i = i + step)
       end_index++;
     return end_index;
   }
@@ -367,37 +347,6 @@ class ValuesInIteratorRangeGenerator : public ParamGeneratorInterface<T> {
 
 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
 //
-// Default parameterized test name generator, returns a string containing the
-// integer test parameter index.
-template <class ParamType>
-std::string DefaultParamName(const TestParamInfo<ParamType>& info) {
-  Message name_stream;
-  name_stream << info.index;
-  return name_stream.GetString();
-}
-
-// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
-//
-// Parameterized test name overload helpers, which help the
-// INSTANTIATE_TEST_CASE_P macro choose between the default parameterized
-// test name generator and user param name generator.
-template <class ParamType, class ParamNameGenFunctor>
-ParamNameGenFunctor GetParamNameGen(ParamNameGenFunctor func) {
-  return func;
-}
-
-template <class ParamType>
-struct ParamNameGenFunc {
-  typedef std::string Type(const TestParamInfo<ParamType>&);
-};
-
-template <class ParamType>
-typename ParamNameGenFunc<ParamType>::Type *GetParamNameGen() {
-  return DefaultParamName;
-}
-
-// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
-//
 // Stores a parameter value and later creates tests parameterized with that
 // value.
 template <class TestClass>
@@ -468,7 +417,7 @@ class ParameterizedTestCaseInfoBase {
   virtual ~ParameterizedTestCaseInfoBase() {}
 
   // Base part of test case name for display purposes.
-  virtual const std::string& GetTestCaseName() const = 0;
+  virtual const string& GetTestCaseName() const = 0;
   // Test case id to verify identity.
   virtual TypeId GetTestCaseTypeId() const = 0;
   // UnitTest class invokes this method to register tests in this
@@ -500,14 +449,12 @@ class ParameterizedTestCaseInfo : public ParameterizedTestCaseInfoBase {
   typedef typename TestCase::ParamType ParamType;
   // A function that returns an instance of appropriate generator type.
   typedef ParamGenerator<ParamType>(GeneratorCreationFunc)();
-  typedef typename ParamNameGenFunc<ParamType>::Type ParamNameGeneratorFunc;
 
-  explicit ParameterizedTestCaseInfo(
-      const char* name, CodeLocation code_location)
-      : test_case_name_(name), code_location_(code_location) {}
+  explicit ParameterizedTestCaseInfo(const char* name)
+      : test_case_name_(name) {}
 
   // Test case base name for display purposes.
-  virtual const std::string& GetTestCaseName() const { return test_case_name_; }
+  virtual const string& GetTestCaseName() const { return test_case_name_; }
   // Test case id to verify identity.
   virtual TypeId GetTestCaseTypeId() const { return GetTypeId<TestCase>(); }
   // TEST_P macro uses AddTestPattern() to record information
@@ -525,12 +472,11 @@ class ParameterizedTestCaseInfo : public ParameterizedTestCaseInfoBase {
   }
   // INSTANTIATE_TEST_CASE_P macro uses AddGenerator() to record information
   // about a generator.
-  int AddTestCaseInstantiation(const std::string& instantiation_name,
+  int AddTestCaseInstantiation(const string& instantiation_name,
                                GeneratorCreationFunc* func,
-                               ParamNameGeneratorFunc* name_func,
-                               const char* file, int line) {
-    instantiations_.push_back(
-        InstantiationInfo(instantiation_name, func, name_func, file, line));
+                               const char* /* file */,
+                               int /* line */) {
+    instantiations_.push_back(::std::make_pair(instantiation_name, func));
     return 0;  // Return value used only to run this method in namespace scope.
   }
   // UnitTest class invokes this method to register tests in this test case
@@ -545,45 +491,25 @@ class ParameterizedTestCaseInfo : public ParameterizedTestCaseInfoBase {
       for (typename InstantiationContainer::iterator gen_it =
                instantiations_.begin(); gen_it != instantiations_.end();
                ++gen_it) {
-        const std::string& instantiation_name = gen_it->name;
-        ParamGenerator<ParamType> generator((*gen_it->generator)());
-        ParamNameGeneratorFunc* name_func = gen_it->name_func;
-        const char* file = gen_it->file;
-        int line = gen_it->line;
+        const string& instantiation_name = gen_it->first;
+        ParamGenerator<ParamType> generator((*gen_it->second)());
 
-        std::string test_case_name;
+        string test_case_name;
         if ( !instantiation_name.empty() )
           test_case_name = instantiation_name + "/";
         test_case_name += test_info->test_case_base_name;
 
-        size_t i = 0;
-        std::set<std::string> test_param_names;
+        int i = 0;
         for (typename ParamGenerator<ParamType>::iterator param_it =
                  generator.begin();
              param_it != generator.end(); ++param_it, ++i) {
           Message test_name_stream;
-
-          std::string param_name = name_func(
-              TestParamInfo<ParamType>(*param_it, i));
-
-          GTEST_CHECK_(IsValidParamName(param_name))
-              << "Parameterized test name '" << param_name
-              << "' is invalid, in " << file
-              << " line " << line << std::endl;
-
-          GTEST_CHECK_(test_param_names.count(param_name) == 0)
-              << "Duplicate parameterized test name '" << param_name
-              << "', in " << file << " line " << line << std::endl;
-
-          test_param_names.insert(param_name);
-
-          test_name_stream << test_info->test_base_name << "/" << param_name;
+          test_name_stream << test_info->test_base_name << "/" << i;
           MakeAndRegisterTestInfo(
               test_case_name.c_str(),
               test_name_stream.GetString().c_str(),
               NULL,  // No type parameter.
               PrintToString(*param_it).c_str(),
-              code_location_,
               GetTestCaseTypeId(),
               TestCase::SetUpTestCase,
               TestCase::TearDownTestCase,
@@ -604,50 +530,17 @@ class ParameterizedTestCaseInfo : public ParameterizedTestCaseInfoBase {
         test_base_name(a_test_base_name),
         test_meta_factory(a_test_meta_factory) {}
 
-    const std::string test_case_base_name;
-    const std::string test_base_name;
+    const string test_case_base_name;
+    const string test_base_name;
     const scoped_ptr<TestMetaFactoryBase<ParamType> > test_meta_factory;
   };
   typedef ::std::vector<linked_ptr<TestInfo> > TestInfoContainer;
-  // Records data received from INSTANTIATE_TEST_CASE_P macros:
-  //  <Instantiation name, Sequence generator creation function,
-  //     Name generator function, Source file, Source line>
-  struct InstantiationInfo {
-      InstantiationInfo(const std::string &name_in,
-                        GeneratorCreationFunc* generator_in,
-                        ParamNameGeneratorFunc* name_func_in,
-                        const char* file_in,
-                        int line_in)
-          : name(name_in),
-            generator(generator_in),
-            name_func(name_func_in),
-            file(file_in),
-            line(line_in) {}
-
-      std::string name;
-      GeneratorCreationFunc* generator;
-      ParamNameGeneratorFunc* name_func;
-      const char* file;
-      int line;
-  };
-  typedef ::std::vector<InstantiationInfo> InstantiationContainer;
+  // Keeps pairs of <Instantiation name, Sequence generator creation function>
+  // received from INSTANTIATE_TEST_CASE_P macros.
+  typedef ::std::vector<std::pair<string, GeneratorCreationFunc*> >
+      InstantiationContainer;
 
-  static bool IsValidParamName(const std::string& name) {
-    // Check for empty string
-    if (name.empty())
-      return false;
-
-    // Check for invalid characters
-    for (std::string::size_type index = 0; index < name.size(); ++index) {
-      if (!isalnum(name[index]) && name[index] != '_')
-        return false;
-    }
-
-    return true;
-  }
-
-  const std::string test_case_name_;
-  CodeLocation code_location_;
+  const string test_case_name_;
   TestInfoContainer tests_;
   InstantiationContainer instantiations_;
 
@@ -675,7 +568,8 @@ class ParameterizedTestCaseRegistry {
   template <class TestCase>
   ParameterizedTestCaseInfo<TestCase>* GetTestCasePatternHolder(
       const char* test_case_name,
-      CodeLocation code_location) {
+      const char* file,
+      int line) {
     ParameterizedTestCaseInfo<TestCase>* typed_test_info = NULL;
     for (TestCaseInfoContainer::iterator it = test_case_infos_.begin();
          it != test_case_infos_.end(); ++it) {
@@ -684,7 +578,7 @@ class ParameterizedTestCaseRegistry {
           // Complain about incorrect usage of Google Test facilities
           // and terminate the program since we cannot guaranty correct
           // test case setup and tear-down in this case.
-          ReportInvalidTestCaseType(test_case_name, code_location);
+          ReportInvalidTestCaseType(test_case_name,  file, line);
           posix::Abort();
         } else {
           // At this point we are sure that the object we found is of the same
@@ -697,8 +591,7 @@ class ParameterizedTestCaseRegistry {
       }
     }
     if (typed_test_info == NULL) {
-      typed_test_info = new ParameterizedTestCaseInfo<TestCase>(
-          test_case_name, code_location);
+      typed_test_info = new ParameterizedTestCaseInfo<TestCase>(test_case_name);
       test_case_infos_.push_back(typed_test_info);
     }
     return typed_test_info;
@@ -721,4 +614,6 @@ class ParameterizedTestCaseRegistry {
 }  // namespace internal
 }  // namespace testing
 
+#endif  //  GTEST_HAS_PARAM_TEST
+
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PARAM_UTIL_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-port-arch.h b/gtests/google_test/gtest/include/gtest/internal/gtest-port-arch.h
deleted file mode 100644
index f83700e06..000000000
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-port-arch.h
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright 2015, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// The Google C++ Testing and Mocking Framework (Google Test)
-//
-// This header file defines the GTEST_OS_* macro.
-// It is separate from gtest-port.h so that custom/gtest-port.h can include it.
-
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
-#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
-
-// Determines the platform on which Google Test is compiled.
-#ifdef __CYGWIN__
-# define GTEST_OS_CYGWIN 1
-#elif defined __SYMBIAN32__
-# define GTEST_OS_SYMBIAN 1
-#elif defined _WIN32
-# define GTEST_OS_WINDOWS 1
-# ifdef _WIN32_WCE
-#  define GTEST_OS_WINDOWS_MOBILE 1
-# elif defined(__MINGW__) || defined(__MINGW32__)
-#  define GTEST_OS_WINDOWS_MINGW 1
-# elif defined(WINAPI_FAMILY)
-#  include <winapifamily.h>
-#  if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#   define GTEST_OS_WINDOWS_DESKTOP 1
-#  elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_PHONE_APP)
-#   define GTEST_OS_WINDOWS_PHONE 1
-#  elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
-#   define GTEST_OS_WINDOWS_RT 1
-#  elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_TV_TITLE)
-#   define GTEST_OS_WINDOWS_PHONE 1
-#   define GTEST_OS_WINDOWS_TV_TITLE 1
-#  else
-    // WINAPI_FAMILY defined but no known partition matched.
-    // Default to desktop.
-#   define GTEST_OS_WINDOWS_DESKTOP 1
-#  endif
-# else
-#  define GTEST_OS_WINDOWS_DESKTOP 1
-# endif  // _WIN32_WCE
-#elif defined __APPLE__
-# define GTEST_OS_MAC 1
-# if TARGET_OS_IPHONE
-#  define GTEST_OS_IOS 1
-# endif
-#elif defined __FreeBSD__
-# define GTEST_OS_FREEBSD 1
-#elif defined __Fuchsia__
-# define GTEST_OS_FUCHSIA 1
-#elif defined __linux__
-# define GTEST_OS_LINUX 1
-# if defined __ANDROID__
-#  define GTEST_OS_LINUX_ANDROID 1
-# endif
-#elif defined __MVS__
-# define GTEST_OS_ZOS 1
-#elif defined(__sun) && defined(__SVR4)
-# define GTEST_OS_SOLARIS 1
-#elif defined(_AIX)
-# define GTEST_OS_AIX 1
-#elif defined(__hpux)
-# define GTEST_OS_HPUX 1
-#elif defined __native_client__
-# define GTEST_OS_NACL 1
-#elif defined __NetBSD__
-# define GTEST_OS_NETBSD 1
-#elif defined __OpenBSD__
-# define GTEST_OS_OPENBSD 1
-#elif defined __QNX__
-# define GTEST_OS_QNX 1
-#endif  // __CYGWIN__
-
-#endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_ARCH_H_
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-port.h b/gtests/google_test/gtest/include/gtest/internal/gtest-port.h
index 786497d85..f376dfa00 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-port.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-port.h
@@ -27,6 +27,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
+// Authors: wan@google.com (Zhanyong Wan)
+//
 // Low-level types and utilities for porting Google Test to various
 // platforms.  All macros ending with _ and symbols defined in an
 // internal namespace are subject to change without notice.  Code
@@ -38,8 +40,6 @@
 // files are expected to #include this.  Therefore, it cannot #include
 // any other Google Test header.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
 
@@ -73,9 +73,11 @@
 //   GTEST_HAS_EXCEPTIONS     - Define it to 1/0 to indicate that exceptions
 //                              are enabled.
 //   GTEST_HAS_GLOBAL_STRING  - Define it to 1/0 to indicate that ::string
-//                              is/isn't available
-//   GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::wstring
-//                              is/isn't available
+//                              is/isn't available (some systems define
+//                              ::string, which is different to std::string).
+//   GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string
+//                              is/isn't available (some systems define
+//                              ::wstring, which is different to std::wstring).
 //   GTEST_HAS_POSIX_RE       - Define it to 1/0 to indicate that POSIX regular
 //                              expressions are/aren't available.
 //   GTEST_HAS_PTHREAD        - Define it to 1/0 to indicate that <pthread.h>
@@ -107,12 +109,6 @@
 //   GTEST_CREATE_SHARED_LIBRARY
 //                            - Define to 1 when compiling Google Test itself
 //                              as a shared library.
-//   GTEST_DEFAULT_DEATH_TEST_STYLE
-//                            - The default value of --gtest_death_test_style.
-//                              The legacy default has been "fast" in the open
-//                              source version since 2008. The recommended value
-//                              is "threadsafe", and can be set in
-//                              custom/gtest-port.h.
 
 // Platform-indicating macros
 // --------------------------
@@ -125,15 +121,13 @@
 //
 //   GTEST_OS_AIX      - IBM AIX
 //   GTEST_OS_CYGWIN   - Cygwin
-//   GTEST_OS_FREEBSD  - FreeBSD
-//   GTEST_OS_FUCHSIA  - Fuchsia
 //   GTEST_OS_HPUX     - HP-UX
 //   GTEST_OS_LINUX    - Linux
 //     GTEST_OS_LINUX_ANDROID - Google Android
 //   GTEST_OS_MAC      - Mac OS X
 //     GTEST_OS_IOS    - iOS
+//       GTEST_OS_IOS_SIMULATOR - iOS simulator
 //   GTEST_OS_NACL     - Google Native Client (NaCl)
-//   GTEST_OS_NETBSD   - NetBSD
 //   GTEST_OS_OPENBSD  - OpenBSD
 //   GTEST_OS_QNX      - QNX
 //   GTEST_OS_SOLARIS  - Sun Solaris
@@ -175,15 +169,15 @@
 //   GTEST_HAS_COMBINE      - the Combine() function (for value-parameterized
 //                            tests)
 //   GTEST_HAS_DEATH_TEST   - death tests
+//   GTEST_HAS_PARAM_TEST   - value-parameterized tests
 //   GTEST_HAS_TYPED_TEST   - typed tests
 //   GTEST_HAS_TYPED_TEST_P - type-parameterized tests
 //   GTEST_IS_THREADSAFE    - Google Test is thread-safe.
-//   GOOGLETEST_CM0007 DO NOT DELETE
 //   GTEST_USES_POSIX_RE    - enhanced POSIX regex is used. Do not confuse with
 //                            GTEST_HAS_POSIX_RE (see above) which users can
 //                            define themselves.
 //   GTEST_USES_SIMPLE_RE   - our own simple regex is used;
-//                            the above RE\b(s) are mutually exclusive.
+//                            the above two are mutually exclusive.
 //   GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ().
 
 // Misc public macros
@@ -212,8 +206,7 @@
 //
 // C++11 feature wrappers:
 //
-//   testing::internal::forward - portability wrapper for std::forward.
-//   testing::internal::move  - portability wrapper for std::move.
+//   GTEST_MOVE_          - portability wrapper for std::move.
 //
 // Synchronization:
 //   Mutex, MutexLock, ThreadLocal, GetThreadCount()
@@ -229,10 +222,10 @@
 //
 // Regular expressions:
 //   RE             - a simple regular expression class using the POSIX
-//                    Extended Regular Expression syntax on UNIX-like platforms
-//                    GOOGLETEST_CM0008 DO NOT DELETE
-//                    or a reduced regular exception syntax on other
-//                    platforms, including Windows.
+//                    Extended Regular Expression syntax on UNIX-like
+//                    platforms, or a reduced regular exception syntax on
+//                    other platforms, including Windows.
+//
 // Logging:
 //   GTEST_LOG_()   - logs messages at the specified severity level.
 //   LogToStderr()  - directs all log messages to stderr.
@@ -278,30 +271,18 @@
 # include <TargetConditionals.h>
 #endif
 
-// Brings in the definition of HAS_GLOBAL_STRING.  This must be done
-// BEFORE we test HAS_GLOBAL_STRING.
-#include <string>  // NOLINT
 #include <algorithm>  // NOLINT
 #include <iostream>  // NOLINT
 #include <sstream>  // NOLINT
+#include <string>  // NOLINT
 #include <utility>
-#include <vector>  // NOLINT
 
-#include "gtest/internal/gtest-port-arch.h"
-#include "gtest/internal/custom/gtest-port.h"
-
-#if !defined(GTEST_DEV_EMAIL_)
-# define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
-# define GTEST_FLAG_PREFIX_ "gtest_"
-# define GTEST_FLAG_PREFIX_DASH_ "gtest-"
-# define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
-# define GTEST_NAME_ "Google Test"
-# define GTEST_PROJECT_URL_ "https://github.com/google/googletest/"
-#endif  // !defined(GTEST_DEV_EMAIL_)
-
-#if !defined(GTEST_INIT_GOOGLE_TEST_NAME_)
-# define GTEST_INIT_GOOGLE_TEST_NAME_ "testing::InitGoogleTest"
-#endif  // !defined(GTEST_INIT_GOOGLE_TEST_NAME_)
+#define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
+#define GTEST_FLAG_PREFIX_ "gtest_"
+#define GTEST_FLAG_PREFIX_DASH_ "gtest-"
+#define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
+#define GTEST_NAME_ "Google Test"
+#define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/"
 
 // Determines the version of gcc that is used to compile this.
 #ifdef __GNUC__
@@ -310,12 +291,68 @@
     (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__)
 #endif  // __GNUC__
 
+// Determines the platform on which Google Test is compiled.
+#ifdef __CYGWIN__
+# define GTEST_OS_CYGWIN 1
+#elif defined __SYMBIAN32__
+# define GTEST_OS_SYMBIAN 1
+#elif defined _WIN32
+# define GTEST_OS_WINDOWS 1
+# ifdef _WIN32_WCE
+#  define GTEST_OS_WINDOWS_MOBILE 1
+# elif defined(__MINGW__) || defined(__MINGW32__)
+#  define GTEST_OS_WINDOWS_MINGW 1
+# elif defined(WINAPI_FAMILY)
+#  include <winapifamily.h>
+#  if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#   define GTEST_OS_WINDOWS_DESKTOP 1
+#  elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_PHONE_APP)
+#   define GTEST_OS_WINDOWS_PHONE 1
+#  elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+#   define GTEST_OS_WINDOWS_RT 1
+#  else
+    // WINAPI_FAMILY defined but no known partition matched.
+    // Default to desktop.
+#   define GTEST_OS_WINDOWS_DESKTOP 1
+#  endif
+# else
+#  define GTEST_OS_WINDOWS_DESKTOP 1
+# endif  // _WIN32_WCE
+#elif defined __APPLE__
+# define GTEST_OS_MAC 1
+# if TARGET_OS_IPHONE
+#  define GTEST_OS_IOS 1
+#  if TARGET_IPHONE_SIMULATOR
+#   define GTEST_OS_IOS_SIMULATOR 1
+#  endif
+# endif
+#elif defined __linux__
+# define GTEST_OS_LINUX 1
+# if defined __ANDROID__
+#  define GTEST_OS_LINUX_ANDROID 1
+# endif
+#elif defined __MVS__
+# define GTEST_OS_ZOS 1
+#elif defined(__sun) && defined(__SVR4)
+# define GTEST_OS_SOLARIS 1
+#elif defined(_AIX)
+# define GTEST_OS_AIX 1
+#elif defined(__hpux)
+# define GTEST_OS_HPUX 1
+#elif defined __native_client__
+# define GTEST_OS_NACL 1
+#elif defined __OpenBSD__
+# define GTEST_OS_OPENBSD 1
+#elif defined __QNX__
+# define GTEST_OS_QNX 1
+#endif  // __CYGWIN__
+
 // Macros for disabling Microsoft Visual C++ warnings.
 //
 //   GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 4385)
 //   /* code that triggers warnings C4800 and C4385 */
 //   GTEST_DISABLE_MSC_WARNINGS_POP_()
-#if _MSC_VER >= 1400
+#if _MSC_VER >= 1500
 # define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) \
     __pragma(warning(push))                        \
     __pragma(warning(disable: warnings))
@@ -327,28 +364,12 @@
 # define GTEST_DISABLE_MSC_WARNINGS_POP_()
 #endif
 
-// Clang on Windows does not understand MSVC's pragma warning.
-// We need clang-specific way to disable function deprecation warning.
-#ifdef __clang__
-# define GTEST_DISABLE_MSC_DEPRECATED_PUSH_()                         \
-    _Pragma("clang diagnostic push")                                  \
-    _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") \
-    _Pragma("clang diagnostic ignored \"-Wdeprecated-implementations\"")
-#define GTEST_DISABLE_MSC_DEPRECATED_POP_() \
-    _Pragma("clang diagnostic pop")
-#else
-# define GTEST_DISABLE_MSC_DEPRECATED_PUSH_() \
-    GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996)
-# define GTEST_DISABLE_MSC_DEPRECATED_POP_() \
-    GTEST_DISABLE_MSC_WARNINGS_POP_()
-#endif
-
 #ifndef GTEST_LANG_CXX11
 // gcc and clang define __GXX_EXPERIMENTAL_CXX0X__ when
 // -std={c,gnu}++{0x,11} is passed.  The C++11 standard specifies a
 // value for __cplusplus, and recent versions of clang, gcc, and
 // probably other compilers set that too in C++11 mode.
-# if __GXX_EXPERIMENTAL_CXX0X__ || __cplusplus >= 201103L || _MSC_VER >= 1900
+# if __GXX_EXPERIMENTAL_CXX0X__ || __cplusplus >= 201103L
 // Compiling in at least C++11 mode.
 #  define GTEST_LANG_CXX11 1
 # else
@@ -356,40 +377,12 @@
 # endif
 #endif
 
-// Distinct from C++11 language support, some environments don't provide
-// proper C++11 library support. Notably, it's possible to build in
-// C++11 mode when targeting Mac OS X 10.6, which has an old libstdc++
-// with no C++11 support.
-//
-// libstdc++ has sufficient C++11 support as of GCC 4.6.0, __GLIBCXX__
-// 20110325, but maintenance releases in the 4.4 and 4.5 series followed
-// this date, so check for those versions by their date stamps.
-// https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html#abi.versioning
-#if GTEST_LANG_CXX11 && \
-    (!defined(__GLIBCXX__) || ( \
-        __GLIBCXX__ >= 20110325ul &&  /* GCC >= 4.6.0 */ \
-        /* Blacklist of patch releases of older branches: */ \
-        __GLIBCXX__ != 20110416ul &&  /* GCC 4.4.6 */ \
-        __GLIBCXX__ != 20120313ul &&  /* GCC 4.4.7 */ \
-        __GLIBCXX__ != 20110428ul &&  /* GCC 4.5.3 */ \
-        __GLIBCXX__ != 20120702ul))   /* GCC 4.5.4 */
-# define GTEST_STDLIB_CXX11 1
-#endif
-
-// Only use C++11 library features if the library provides them.
-#if GTEST_STDLIB_CXX11
-# define GTEST_HAS_STD_BEGIN_AND_END_ 1
-# define GTEST_HAS_STD_FORWARD_LIST_ 1
-# if !defined(_MSC_VER) || (_MSC_FULL_VER >= 190023824)
-// works only with VS2015U2 and better
-#   define GTEST_HAS_STD_FUNCTION_ 1
-# endif
+// C++11 specifies that <initializer_list> provides std::initializer_list. Use
+// that if gtest is used in C++11 mode and libstdc++ isn't very old (binaries
+// targeting OS X 10.6 can build with clang but need to use gcc4.2's
+// libstdc++).
+#if GTEST_LANG_CXX11 && (!defined(__GLIBCXX__) || __GLIBCXX__ > 20110325)
 # define GTEST_HAS_STD_INITIALIZER_LIST_ 1
-# define GTEST_HAS_STD_MOVE_ 1
-# define GTEST_HAS_STD_UNIQUE_PTR_ 1
-# define GTEST_HAS_STD_SHARED_PTR_ 1
-# define GTEST_HAS_UNORDERED_MAP_ 1
-# define GTEST_HAS_UNORDERED_SET_ 1
 #endif
 
 // C++11 specifies that <tuple> provides std::tuple.
@@ -397,8 +390,7 @@
 #if GTEST_LANG_CXX11
 # define GTEST_HAS_STD_TUPLE_ 1
 # if defined(__clang__)
-// Inspired by
-// https://clang.llvm.org/docs/LanguageExtensions.html#include-file-checking-macros
+// Inspired by http://clang.llvm.org/docs/LanguageExtensions.html#__has_include
 #  if defined(__has_include) && !__has_include(<tuple>)
 #   undef GTEST_HAS_STD_TUPLE_
 #  endif
@@ -410,7 +402,7 @@
 # elif defined(__GLIBCXX__)
 // Inspired by boost/config/stdlib/libstdcpp3.hpp,
 // http://gcc.gnu.org/gcc-4.2/changes.html and
-// https://web.archive.org/web/20140227044429/gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01.html#manual.intro.status.standard.200x
+// http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01.html#manual.intro.status.standard.200x
 #  if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
 #   undef GTEST_HAS_STD_TUPLE_
 #  endif
@@ -426,16 +418,10 @@
 #  include <io.h>
 # endif
 // In order to avoid having to include <windows.h>, use forward declaration
-#if GTEST_OS_WINDOWS_MINGW && !defined(__MINGW64_VERSION_MAJOR)
-// MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two
-// separate (equivalent) structs, instead of using typedef
-typedef struct _CRITICAL_SECTION GTEST_CRITICAL_SECTION;
-#else
-// Assume CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
+// assuming CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
 // This assumption is verified by
 // WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
-typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
-#endif
+struct _RTL_CRITICAL_SECTION;
 #else
 // This assumes that non-Windows OSes provide unistd.h. For OSes where this
 // is not the case, we need to include headers that provide the functions
@@ -459,10 +445,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # endif
 #endif
 
-#if GTEST_USES_PCRE
-// The appropriate headers have already been included.
-
-#elif GTEST_HAS_POSIX_RE
+#if GTEST_HAS_POSIX_RE
 
 // On some platforms, <regex.h> needs someone to define size_t, and
 // won't compile otherwise.  We can #include it here as we already
@@ -484,31 +467,19 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // simple regex implementation instead.
 # define GTEST_USES_SIMPLE_RE 1
 
-#endif  // GTEST_USES_PCRE
+#endif  // GTEST_HAS_POSIX_RE
 
 #ifndef GTEST_HAS_EXCEPTIONS
 // The user didn't tell us whether exceptions are enabled, so we need
 // to figure it out.
-# if defined(_MSC_VER) && defined(_CPPUNWIND)
-// MSVC defines _CPPUNWIND to 1 iff exceptions are enabled.
-#  define GTEST_HAS_EXCEPTIONS 1
-# elif defined(__BORLANDC__)
-// C++Builder's implementation of the STL uses the _HAS_EXCEPTIONS
+# if defined(_MSC_VER) || defined(__BORLANDC__)
+// MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS
 // macro to enable exceptions, so we'll do the same.
 // Assumes that exceptions are enabled by default.
 #  ifndef _HAS_EXCEPTIONS
 #   define _HAS_EXCEPTIONS 1
 #  endif  // _HAS_EXCEPTIONS
 #  define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
-# elif defined(__clang__)
-// clang defines __EXCEPTIONS iff exceptions are enabled before clang 220714,
-// but iff cleanups are enabled after that. In Obj-C++ files, there can be
-// cleanups for ObjC exceptions which also need cleanups, even if C++ exceptions
-// are disabled. clang has __has_feature(cxx_exceptions) which checks for C++
-// exceptions starting at clang r206352, but which checked for cleanups prior to
-// that. To reliably check for C++ exception availability with clang, check for
-// __EXCEPTIONS && __has_feature(cxx_exceptions).
-#  define GTEST_HAS_EXCEPTIONS (__EXCEPTIONS && __has_feature(cxx_exceptions))
 # elif defined(__GNUC__) && __EXCEPTIONS
 // gcc defines __EXCEPTIONS to 1 iff exceptions are enabled.
 #  define GTEST_HAS_EXCEPTIONS 1
@@ -537,17 +508,21 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # define GTEST_HAS_STD_STRING 1
 #elif !GTEST_HAS_STD_STRING
 // The user told us that ::std::string isn't available.
-# error "::std::string isn't available."
+# error "Google Test cannot be used where ::std::string isn't available."
 #endif  // !defined(GTEST_HAS_STD_STRING)
 
 #ifndef GTEST_HAS_GLOBAL_STRING
+// The user didn't tell us whether ::string is available, so we need
+// to figure it out.
+
 # define GTEST_HAS_GLOBAL_STRING 0
+
 #endif  // GTEST_HAS_GLOBAL_STRING
 
 #ifndef GTEST_HAS_STD_WSTRING
 // The user didn't tell us whether ::std::wstring is available, so we need
 // to figure it out.
-// FIXME: uses autoconf to detect whether ::std::wstring
+// TODO(wan@google.com): uses autoconf to detect whether ::std::wstring
 //   is available.
 
 // Cygwin 1.7 and below doesn't support ::std::wstring.
@@ -630,14 +605,13 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 
 // Determines whether Google Test can use the pthreads library.
 #ifndef GTEST_HAS_PTHREAD
-// The user didn't tell us explicitly, so we make reasonable assumptions about
-// which platforms have pthreads support.
+// The user didn't tell us explicitly, so we assume pthreads support is
+// available on Linux and Mac.
 //
 // To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0
 // to your compiler flags.
-#define GTEST_HAS_PTHREAD                                             \
-  (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX || GTEST_OS_QNX || \
-   GTEST_OS_FREEBSD || GTEST_OS_NACL || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA)
+# define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX \
+    || GTEST_OS_QNX)
 #endif  // GTEST_HAS_PTHREAD
 
 #if GTEST_HAS_PTHREAD
@@ -649,15 +623,6 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # include <time.h>  // NOLINT
 #endif
 
-// Determines if hash_map/hash_set are available.
-// Only used for testing against those containers.
-#if !defined(GTEST_HAS_HASH_MAP_)
-# if defined(_MSC_VER) && (_MSC_VER < 1900)
-#  define GTEST_HAS_HASH_MAP_ 1  // Indicates that hash_map is available.
-#  define GTEST_HAS_HASH_SET_ 1  // Indicates that hash_set is available.
-# endif  // _MSC_VER
-#endif  // !defined(GTEST_HAS_HASH_MAP_)
-
 // Determines whether Google Test can use tr1/tuple.  You can define
 // this macro to 0 to prevent Google Test from using tuple (any
 // feature depending on tuple with be disabled in this mode).
@@ -665,14 +630,6 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR)
 // STLport, provided with the Android NDK, has neither <tr1/tuple> or <tuple>.
 #  define GTEST_HAS_TR1_TUPLE 0
-# elif defined(_MSC_VER) && (_MSC_VER >= 1910)
-// Prevent `warning C4996: 'std::tr1': warning STL4002:
-// The non-Standard std::tr1 namespace and TR1-only machinery
-// are deprecated and will be REMOVED.`
-#  define GTEST_HAS_TR1_TUPLE 0
-# elif GTEST_LANG_CXX11 && defined(_LIBCPP_VERSION)
-// libc++ doesn't support TR1.
-#  define GTEST_HAS_TR1_TUPLE 0
 # else
 // The user didn't tell us not to do it, so we assume it's OK.
 #  define GTEST_HAS_TR1_TUPLE 1
@@ -682,10 +639,6 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // Determines whether Google Test's own tr1 tuple implementation
 // should be used.
 #ifndef GTEST_USE_OWN_TR1_TUPLE
-// We use our own tuple implementation on Symbian.
-# if GTEST_OS_SYMBIAN
-#  define GTEST_USE_OWN_TR1_TUPLE 1
-# else
 // The user didn't tell us, so we need to figure it out.
 
 // We use our own TR1 tuple if we aren't sure the user has an
@@ -699,8 +652,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // support TR1 tuple.  libc++ only provides std::tuple, in C++11 mode,
 // and it can be used with some compilers that define __GNUC__.
 # if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000) \
-      && !GTEST_OS_QNX && !defined(_LIBCPP_VERSION)) \
-      || (_MSC_VER >= 1600 && _MSC_VER < 1900)
+      && !GTEST_OS_QNX && !defined(_LIBCPP_VERSION)) || _MSC_VER >= 1600
 #  define GTEST_ENV_HAS_TR1_TUPLE_ 1
 # endif
 
@@ -716,11 +668,12 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # else
 #  define GTEST_USE_OWN_TR1_TUPLE 1
 # endif
-# endif  // GTEST_OS_SYMBIAN
+
 #endif  // GTEST_USE_OWN_TR1_TUPLE
 
-// To avoid conditional compilation we make it gtest-port.h's responsibility
-// to #include the header implementing tuple.
+// To avoid conditional compilation everywhere, we make it
+// gtest-port.h's responsibility to #include the header implementing
+// tuple.
 #if GTEST_HAS_STD_TUPLE_
 # include <tuple>  // IWYU pragma: export
 # define GTEST_TUPLE_NAMESPACE_ ::std
@@ -735,6 +688,22 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 
 # if GTEST_USE_OWN_TR1_TUPLE
 #  include "gtest/internal/gtest-tuple.h"  // IWYU pragma: export  // NOLINT
+# elif GTEST_ENV_HAS_STD_TUPLE_
+#  include <tuple>
+// C++11 puts its tuple into the ::std namespace rather than
+// ::std::tr1.  gtest expects tuple to live in ::std::tr1, so put it there.
+// This causes undefined behavior, but supported compilers react in
+// the way we intend.
+namespace std {
+namespace tr1 {
+using ::std::get;
+using ::std::make_tuple;
+using ::std::tuple;
+using ::std::tuple_element;
+using ::std::tuple_size;
+}
+}
+
 # elif GTEST_OS_SYMBIAN
 
 // On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to
@@ -759,22 +728,20 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // Until version 4.3.2, gcc has a bug that causes <tr1/functional>,
 // which is #included by <tr1/tuple>, to not compile when RTTI is
 // disabled.  _TR1_FUNCTIONAL is the header guard for
-// <tr1/functional>.  Hence the following #define is used to prevent
+// <tr1/functional>.  Hence the following #define is a hack to prevent
 // <tr1/functional> from being included.
 #   define _TR1_FUNCTIONAL 1
 #   include <tr1/tuple>
 #   undef _TR1_FUNCTIONAL  // Allows the user to #include
-                        // <tr1/functional> if they choose to.
+                        // <tr1/functional> if he chooses to.
 #  else
 #   include <tr1/tuple>  // NOLINT
 #  endif  // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
 
-// VS 2010 now has tr1 support.
-# elif _MSC_VER >= 1600
+# else
+// If the compiler is not GCC 4.0+, we assume the user is using a
+// spec-conforming TR1 implementation.
 #  include <tuple>  // IWYU pragma: export  // NOLINT
-
-# else  // GTEST_USE_OWN_TR1_TUPLE
-#  include <tr1/tuple>  // IWYU pragma: export  // NOLINT
 # endif  // GTEST_USE_OWN_TR1_TUPLE
 
 #endif  // GTEST_HAS_TR1_TUPLE
@@ -788,12 +755,8 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 
 # if GTEST_OS_LINUX && !defined(__ia64__)
 #  if GTEST_OS_LINUX_ANDROID
-// On Android, clone() became available at different API levels for each 32-bit
-// architecture.
-#    if defined(__LP64__) || \
-        (defined(__arm__) && __ANDROID_API__ >= 9) || \
-        (defined(__mips__) && __ANDROID_API__ >= 12) || \
-        (defined(__i386__) && __ANDROID_API__ >= 17)
+// On Android, clone() is only available on ARM starting with Gingerbread.
+#    if defined(__arm__) && __ANDROID_API__ >= 9
 #     define GTEST_HAS_CLONE 1
 #    else
 #     define GTEST_HAS_CLONE 0
@@ -824,15 +787,20 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // Google Test does not support death tests for VC 7.1 and earlier as
 // abort() in a VC 7.1 application compiled as GUI in debug config
 // pops up a dialog window that cannot be suppressed programmatically.
-#if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS ||   \
-     (GTEST_OS_MAC && !GTEST_OS_IOS) ||                         \
-     (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) ||          \
+#if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
+     (GTEST_OS_MAC && !GTEST_OS_IOS) || GTEST_OS_IOS_SIMULATOR || \
+     (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \
      GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX || GTEST_OS_HPUX || \
-     GTEST_OS_OPENBSD || GTEST_OS_QNX || GTEST_OS_FREEBSD || \
-     GTEST_OS_NETBSD || GTEST_OS_FUCHSIA)
+     GTEST_OS_OPENBSD || GTEST_OS_QNX)
 # define GTEST_HAS_DEATH_TEST 1
+# include <vector>  // NOLINT
 #endif
 
+// We don't support MSVC 7.1 with exceptions disabled now.  Therefore
+// all the compilers we care about are adequate for supporting
+// value-parameterized tests.
+#define GTEST_HAS_PARAM_TEST 1
+
 // Determines whether to support type-driven tests.
 
 // Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0,
@@ -847,7 +815,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // value-parameterized tests are enabled.  The implementation doesn't
 // work on Sun Studio since it doesn't understand templated conversion
 // operators.
-#if (GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_) && !defined(__SUNPRO_CC)
+#if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC)
 # define GTEST_HAS_COMBINE 1
 #endif
 
@@ -889,48 +857,19 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // compiler the variable/parameter does not have to be used.
 #if defined(__GNUC__) && !defined(COMPILER_ICC)
 # define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
-#elif defined(__clang__)
-# if __has_attribute(unused)
-#  define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
-# endif
-#endif
-#ifndef GTEST_ATTRIBUTE_UNUSED_
-# define GTEST_ATTRIBUTE_UNUSED_
-#endif
-
-#if GTEST_LANG_CXX11
-# define GTEST_CXX11_EQUALS_DELETE_ = delete
-#else  // GTEST_LANG_CXX11
-# define GTEST_CXX11_EQUALS_DELETE_
-#endif  // GTEST_LANG_CXX11
-
-// Use this annotation before a function that takes a printf format string.
-#if (defined(__GNUC__) || defined(__clang__)) && !defined(COMPILER_ICC)
-# if defined(__MINGW_PRINTF_FORMAT)
-// MinGW has two different printf implementations. Ensure the format macro
-// matches the selected implementation. See
-// https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/.
-#  define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
-       __attribute__((__format__(__MINGW_PRINTF_FORMAT, string_index, \
-                                 first_to_check)))
-# else
-#  define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
-       __attribute__((__format__(__printf__, string_index, first_to_check)))
-# endif
 #else
-# define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check)
+# define GTEST_ATTRIBUTE_UNUSED_
 #endif
 
-
 // A macro to disallow operator=
 // This should be used in the private: declarations for a class.
-#define GTEST_DISALLOW_ASSIGN_(type) \
-  void operator=(type const &) GTEST_CXX11_EQUALS_DELETE_
+#define GTEST_DISALLOW_ASSIGN_(type)\
+  void operator=(type const &)
 
 // A macro to disallow copy constructor and operator=
 // This should be used in the private: declarations for a class.
-#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type) \
-  type(type const &) GTEST_CXX11_EQUALS_DELETE_; \
+#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\
+  type(type const &);\
   GTEST_DISALLOW_ASSIGN_(type)
 
 // Tell the compiler to warn about unused return values for functions declared
@@ -944,6 +883,12 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # define GTEST_MUST_USE_RESULT_
 #endif  // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC
 
+#if GTEST_LANG_CXX11
+# define GTEST_MOVE_(x) ::std::move(x)  // NOLINT
+#else
+# define GTEST_MOVE_(x) x
+#endif
+
 // MS C++ compiler emits warning when a conditional expression is compile time
 // constant. In some contexts this warning is false positive and needs to be
 // suppressed. Use the following two macros in such cases:
@@ -972,36 +917,25 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 # endif
 
 #define GTEST_IS_THREADSAFE \
-    (GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ \
+    (0 \
      || (GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT) \
      || GTEST_HAS_PTHREAD)
 
 #endif  // GTEST_HAS_SEH
 
-// GTEST_API_ qualifies all symbols that must be exported. The definitions below
-// are guarded by #ifndef to give embedders a chance to define GTEST_API_ in
-// gtest/internal/custom/gtest-port.h
-#ifndef GTEST_API_
-
 #ifdef _MSC_VER
+
 # if GTEST_LINKED_AS_SHARED_LIBRARY
 #  define GTEST_API_ __declspec(dllimport)
 # elif GTEST_CREATE_SHARED_LIBRARY
 #  define GTEST_API_ __declspec(dllexport)
 # endif
-#elif __GNUC__ >= 4 || defined(__clang__)
-# define GTEST_API_ __attribute__((visibility ("default")))
-#endif  // _MSC_VER
 
-#endif  // GTEST_API_
+#endif  // _MSC_VER
 
 #ifndef GTEST_API_
 # define GTEST_API_
-#endif  // GTEST_API_
-
-#ifndef GTEST_DEFAULT_DEATH_TEST_STYLE
-# define GTEST_DEFAULT_DEATH_TEST_STYLE  "fast"
-#endif  // GTEST_DEFAULT_DEATH_TEST_STYLE
+#endif
 
 #ifdef __GNUC__
 // Ask the compiler to never inline a given function.
@@ -1011,12 +945,10 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 #endif
 
 // _LIBCPP_VERSION is defined by the libc++ library from the LLVM project.
-#if !defined(GTEST_HAS_CXXABI_H_)
-# if defined(__GLIBCXX__) || (defined(_LIBCPP_VERSION) && !defined(_MSC_VER))
-#  define GTEST_HAS_CXXABI_H_ 1
-# else
-#  define GTEST_HAS_CXXABI_H_ 0
-# endif
+#if defined(__GLIBCXX__) || defined(_LIBCPP_VERSION)
+# define GTEST_HAS_CXXABI_H_ 1
+#else
+# define GTEST_HAS_CXXABI_H_ 0
 #endif
 
 // A function level attribute to disable checking for use of uninitialized
@@ -1093,22 +1025,16 @@ class Secret;
 // the expression is false, most compilers will issue a warning/error
 // containing the name of the variable.
 
-#if GTEST_LANG_CXX11
-# define GTEST_COMPILE_ASSERT_(expr, msg) static_assert(expr, #msg)
-#else  // !GTEST_LANG_CXX11
 template <bool>
-  struct CompileAssert {
+struct CompileAssert {
 };
 
-# define GTEST_COMPILE_ASSERT_(expr, msg) \
+#define GTEST_COMPILE_ASSERT_(expr, msg) \
   typedef ::testing::internal::CompileAssert<(static_cast<bool>(expr))> \
       msg[static_cast<bool>(expr) ? 1 : -1] GTEST_ATTRIBUTE_UNUSED_
-#endif  // !GTEST_LANG_CXX11
 
 // Implementation details of GTEST_COMPILE_ASSERT_:
 //
-// (In C++11, we simply use static_assert instead of the following)
-//
 // - GTEST_COMPILE_ASSERT_ works by defining an array type that has -1
 //   elements (and thus is invalid) when the expression is false.
 //
@@ -1159,16 +1085,6 @@ struct StaticAssertTypeEqHelper<T, T> {
   enum { value = true };
 };
 
-// Same as std::is_same<>.
-template <typename T, typename U>
-struct IsSame {
-  enum { value = false };
-};
-template <typename T>
-struct IsSame<T, T> {
-  enum { value = true };
-};
-
 // Evaluates to the number of elements in 'array'.
 #define GTEST_ARRAY_SIZE_(array) (sizeof(array) / sizeof(array[0]))
 
@@ -1232,10 +1148,6 @@ class scoped_ptr {
 
 // Defines RE.
 
-#if GTEST_USES_PCRE
-// if used, PCRE is injected by custom/gtest-port.h
-#elif GTEST_USES_POSIX_RE || GTEST_USES_SIMPLE_RE
-
 // A simple C++ wrapper for <regex.h>.  It uses the POSIX Extended
 // Regular Expression syntax.
 class GTEST_API_ RE {
@@ -1247,11 +1159,11 @@ class GTEST_API_ RE {
   // Constructs an RE from a string.
   RE(const ::std::string& regex) { Init(regex.c_str()); }  // NOLINT
 
-# if GTEST_HAS_GLOBAL_STRING
+#if GTEST_HAS_GLOBAL_STRING
 
   RE(const ::string& regex) { Init(regex.c_str()); }  // NOLINT
 
-# endif  // GTEST_HAS_GLOBAL_STRING
+#endif  // GTEST_HAS_GLOBAL_STRING
 
   RE(const char* regex) { Init(regex); }  // NOLINT
   ~RE();
@@ -1264,7 +1176,7 @@ class GTEST_API_ RE {
   // PartialMatch(str, re) returns true iff regular expression re
   // matches a substring of str (including str itself).
   //
-  // FIXME: make FullMatch() and PartialMatch() work
+  // TODO(wan@google.com): make FullMatch() and PartialMatch() work
   // when str contains NUL characters.
   static bool FullMatch(const ::std::string& str, const RE& re) {
     return FullMatch(str.c_str(), re);
@@ -1273,7 +1185,7 @@ class GTEST_API_ RE {
     return PartialMatch(str.c_str(), re);
   }
 
-# if GTEST_HAS_GLOBAL_STRING
+#if GTEST_HAS_GLOBAL_STRING
 
   static bool FullMatch(const ::string& str, const RE& re) {
     return FullMatch(str.c_str(), re);
@@ -1282,7 +1194,7 @@ class GTEST_API_ RE {
     return PartialMatch(str.c_str(), re);
   }
 
-# endif  // GTEST_HAS_GLOBAL_STRING
+#endif  // GTEST_HAS_GLOBAL_STRING
 
   static bool FullMatch(const char* str, const RE& re);
   static bool PartialMatch(const char* str, const RE& re);
@@ -1291,27 +1203,25 @@ class GTEST_API_ RE {
   void Init(const char* regex);
 
   // We use a const char* instead of an std::string, as Google Test used to be
-  // used where std::string is not available.  FIXME: change to
+  // used where std::string is not available.  TODO(wan@google.com): change to
   // std::string.
   const char* pattern_;
   bool is_valid_;
 
-# if GTEST_USES_POSIX_RE
+#if GTEST_USES_POSIX_RE
 
   regex_t full_regex_;     // For FullMatch().
   regex_t partial_regex_;  // For PartialMatch().
 
-# else  // GTEST_USES_SIMPLE_RE
+#else  // GTEST_USES_SIMPLE_RE
 
   const char* full_pattern_;  // For FullMatch();
 
-# endif
+#endif
 
   GTEST_DISALLOW_ASSIGN_(RE);
 };
 
-#endif  // GTEST_USES_PCRE
-
 // Formats a source file path and a line number as they would appear
 // in an error message from the compiler used to compile this code.
 GTEST_API_ ::std::string FormatFileLocation(const char* file, int line);
@@ -1353,18 +1263,13 @@ class GTEST_API_ GTestLog {
   GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog);
 };
 
-#if !defined(GTEST_LOG_)
-
-# define GTEST_LOG_(severity) \
+#define GTEST_LOG_(severity) \
     ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \
                                   __FILE__, __LINE__).GetStream()
 
 inline void LogToStderr() {}
 inline void FlushInfoLog() { fflush(NULL); }
 
-#endif  // !defined(GTEST_LOG_)
-
-#if !defined(GTEST_CHECK_)
 // INTERNAL IMPLEMENTATION - DO NOT USE.
 //
 // GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition
@@ -1379,13 +1284,12 @@ inline void FlushInfoLog() { fflush(NULL); }
 //    condition itself, plus additional message streamed into it, if any,
 //    and then it aborts the program. It aborts the program irrespective of
 //    whether it is built in the debug mode or not.
-# define GTEST_CHECK_(condition) \
+#define GTEST_CHECK_(condition) \
     GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
     if (::testing::internal::IsTrue(condition)) \
       ; \
     else \
       GTEST_LOG_(FATAL) << "Condition " #condition " failed. "
-#endif  // !defined(GTEST_CHECK_)
 
 // An all-mode assert to verify that the given POSIX-style function
 // call returns 0 (indicating success).  Known limitation: this
@@ -1397,61 +1301,6 @@ inline void FlushInfoLog() { fflush(NULL); }
     GTEST_LOG_(FATAL) << #posix_call << "failed with error " \
                       << gtest_error
 
-// Adds reference to a type if it is not a reference type,
-// otherwise leaves it unchanged.  This is the same as
-// tr1::add_reference, which is not widely available yet.
-template <typename T>
-struct AddReference { typedef T& type; };  // NOLINT
-template <typename T>
-struct AddReference<T&> { typedef T& type; };  // NOLINT
-
-// A handy wrapper around AddReference that works when the argument T
-// depends on template parameters.
-#define GTEST_ADD_REFERENCE_(T) \
-    typename ::testing::internal::AddReference<T>::type
-
-// Transforms "T" into "const T&" according to standard reference collapsing
-// rules (this is only needed as a backport for C++98 compilers that do not
-// support reference collapsing). Specifically, it transforms:
-//
-//   char         ==> const char&
-//   const char   ==> const char&
-//   char&        ==> char&
-//   const char&  ==> const char&
-//
-// Note that the non-const reference will not have "const" added. This is
-// standard, and necessary so that "T" can always bind to "const T&".
-template <typename T>
-struct ConstRef { typedef const T& type; };
-template <typename T>
-struct ConstRef<T&> { typedef T& type; };
-
-// The argument T must depend on some template parameters.
-#define GTEST_REFERENCE_TO_CONST_(T) \
-  typename ::testing::internal::ConstRef<T>::type
-
-#if GTEST_HAS_STD_MOVE_
-using std::forward;
-using std::move;
-
-template <typename T>
-struct RvalueRef {
-  typedef T&& type;
-};
-#else  // GTEST_HAS_STD_MOVE_
-template <typename T>
-const T& move(const T& t) {
-  return t;
-}
-template <typename T>
-GTEST_ADD_REFERENCE_(T) forward(GTEST_ADD_REFERENCE_(T) t) { return t; }
-
-template <typename T>
-struct RvalueRef {
-  typedef const T& type;
-};
-#endif  // GTEST_HAS_STD_MOVE_
-
 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
 //
 // Use ImplicitCast_ as a safe version of static_cast for upcasting in
@@ -1525,11 +1374,6 @@ template <class Derived, class Base>
 Derived* CheckedDowncastToActualType(Base* base) {
 #if GTEST_HAS_RTTI
   GTEST_CHECK_(typeid(*base) == typeid(Derived));
-#endif
-
-#if GTEST_HAS_DOWNCAST_
-  return ::down_cast<Derived*>(base);
-#elif GTEST_HAS_RTTI
   return dynamic_cast<Derived*>(base);  // NOLINT
 #else
   return static_cast<Derived*>(base);  // Poor man's downcast.
@@ -1550,25 +1394,16 @@ GTEST_API_ void CaptureStderr();
 GTEST_API_ std::string GetCapturedStderr();
 
 #endif  // GTEST_HAS_STREAM_REDIRECTION
-// Returns the size (in bytes) of a file.
-GTEST_API_ size_t GetFileSize(FILE* file);
-
-// Reads the entire content of a file as a string.
-GTEST_API_ std::string ReadEntireFile(FILE* file);
 
-// All command line arguments.
-GTEST_API_ std::vector<std::string> GetArgvs();
 
 #if GTEST_HAS_DEATH_TEST
 
-std::vector<std::string> GetInjectableArgvs();
-// Deprecated: pass the args vector by value instead.
-void SetInjectableArgvs(const std::vector<std::string>* new_argvs);
-void SetInjectableArgvs(const std::vector<std::string>& new_argvs);
-#if GTEST_HAS_GLOBAL_STRING
-void SetInjectableArgvs(const std::vector< ::string>& new_argvs);
-#endif  // GTEST_HAS_GLOBAL_STRING
-void ClearInjectableArgvs();
+const ::std::vector<testing::internal::string>& GetInjectableArgvs();
+void SetInjectableArgvs(const ::std::vector<testing::internal::string>*
+                             new_argvs);
+
+// A copy of all command line arguments.  Set by InitGoogleTest().
+extern ::std::vector<testing::internal::string> g_argvs;
 
 #endif  // GTEST_HAS_DEATH_TEST
 
@@ -1587,10 +1422,7 @@ inline void SleepMilliseconds(int n) {
 }
 # endif  // GTEST_HAS_PTHREAD
 
-# if GTEST_HAS_NOTIFICATION_
-// Notification has already been imported into the namespace.
-// Nothing to do here.
-
+# if 0  // OS detection
 # elif GTEST_HAS_PTHREAD
 // Allows a controller thread to pause execution of newly created
 // threads until notified.  Instances of this class must be created
@@ -1684,7 +1516,7 @@ class GTEST_API_ Notification {
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
 };
-# endif  // GTEST_HAS_NOTIFICATION_
+# endif  // OS detection
 
 // On MinGW, we can have both GTEST_OS_WINDOWS and GTEST_HAS_PTHREAD
 // defined, but we don't want to use MinGW's pthreads implementation, which
@@ -1767,13 +1599,9 @@ class ThreadWithParam : public ThreadWithParamBase {
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
 };
-# endif  // !GTEST_OS_WINDOWS && GTEST_HAS_PTHREAD ||
-         // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
-
-# if GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
-// Mutex and ThreadLocal have already been imported into the namespace.
-// Nothing to do here.
+# endif  // GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
 
+# if 0  // OS detection
 # elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
 
 // Mutex implements mutex on Windows platforms.  It is used in conjunction
@@ -1818,7 +1646,7 @@ class GTEST_API_ Mutex {
   // Initializes owner_thread_id_ and critical_section_ in static mutexes.
   void ThreadSafeLazyInit();
 
-  // Per https://blogs.msdn.microsoft.com/oldnewthing/20040223-00/?p=40503,
+  // Per http://blogs.msdn.com/b/oldnewthing/archive/2004/02/23/78395.aspx,
   // we assume that 0 is an invalid value for thread IDs.
   unsigned int owner_thread_id_;
 
@@ -1826,7 +1654,7 @@ class GTEST_API_ Mutex {
   // by the linker.
   MutexType type_;
   long critical_section_init_phase_;  // NOLINT
-  GTEST_CRITICAL_SECTION* critical_section_;
+  _RTL_CRITICAL_SECTION* critical_section_;
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
 };
@@ -1978,9 +1806,8 @@ class ThreadWithParam : public ThreadWithParamBase {
 template <typename T>
 class ThreadLocal : public ThreadLocalBase {
  public:
-  ThreadLocal() : default_factory_(new DefaultValueHolderFactory()) {}
-  explicit ThreadLocal(const T& value)
-      : default_factory_(new InstanceValueHolderFactory(value)) {}
+  ThreadLocal() : default_() {}
+  explicit ThreadLocal(const T& value) : default_(value) {}
 
   ~ThreadLocal() { ThreadLocalRegistry::OnThreadLocalDestroyed(this); }
 
@@ -1994,7 +1821,6 @@ class ThreadLocal : public ThreadLocalBase {
   // knowing the type of T.
   class ValueHolder : public ThreadLocalValueHolderBase {
    public:
-    ValueHolder() : value_() {}
     explicit ValueHolder(const T& value) : value_(value) {}
 
     T* pointer() { return &value_; }
@@ -2011,42 +1837,10 @@ class ThreadLocal : public ThreadLocalBase {
   }
 
   virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const {
-    return default_factory_->MakeNewHolder();
+    return new ValueHolder(default_);
   }
 
-  class ValueHolderFactory {
-   public:
-    ValueHolderFactory() {}
-    virtual ~ValueHolderFactory() {}
-    virtual ValueHolder* MakeNewHolder() const = 0;
-
-   private:
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory);
-  };
-
-  class DefaultValueHolderFactory : public ValueHolderFactory {
-   public:
-    DefaultValueHolderFactory() {}
-    virtual ValueHolder* MakeNewHolder() const { return new ValueHolder(); }
-
-   private:
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory);
-  };
-
-  class InstanceValueHolderFactory : public ValueHolderFactory {
-   public:
-    explicit InstanceValueHolderFactory(const T& value) : value_(value) {}
-    virtual ValueHolder* MakeNewHolder() const {
-      return new ValueHolder(value_);
-    }
-
-   private:
-    const T value_;  // The value for each thread.
-
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory);
-  };
-
-  scoped_ptr<ValueHolderFactory> default_factory_;
+  const T default_;  // The default value for each thread.
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
 };
@@ -2107,8 +1901,8 @@ class MutexBase {
 // particular, the owner_ field (a pthread_t) is not explicitly initialized.
 // This allows initialization to work whether pthread_t is a scalar or struct.
 // The flag -Wmissing-field-initializers must not be specified for this to work.
-#define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
-  ::testing::internal::MutexBase mutex = {PTHREAD_MUTEX_INITIALIZER, false, 0}
+#  define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
+     ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, false }
 
 // The Mutex class can only be used for mutexes created at runtime. It
 // shares its API with MutexBase otherwise.
@@ -2165,13 +1959,12 @@ extern "C" inline void DeleteThreadLocalValue(void* value_holder) {
 
 // Implements thread-local storage on pthreads-based systems.
 template <typename T>
-class GTEST_API_ ThreadLocal {
+class ThreadLocal {
  public:
-  ThreadLocal()
-      : key_(CreateKey()), default_factory_(new DefaultValueHolderFactory()) {}
-  explicit ThreadLocal(const T& value)
-      : key_(CreateKey()),
-        default_factory_(new InstanceValueHolderFactory(value)) {}
+  ThreadLocal() : key_(CreateKey()),
+                  default_() {}
+  explicit ThreadLocal(const T& value) : key_(CreateKey()),
+                                         default_(value) {}
 
   ~ThreadLocal() {
     // Destroys the managed object for the current thread, if any.
@@ -2191,7 +1984,6 @@ class GTEST_API_ ThreadLocal {
   // Holds a value of type T.
   class ValueHolder : public ThreadLocalValueHolderBase {
    public:
-    ValueHolder() : value_() {}
     explicit ValueHolder(const T& value) : value_(value) {}
 
     T* pointer() { return &value_; }
@@ -2217,52 +2009,20 @@ class GTEST_API_ ThreadLocal {
       return CheckedDowncastToActualType<ValueHolder>(holder)->pointer();
     }
 
-    ValueHolder* const new_holder = default_factory_->MakeNewHolder();
+    ValueHolder* const new_holder = new ValueHolder(default_);
     ThreadLocalValueHolderBase* const holder_base = new_holder;
     GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base));
     return new_holder->pointer();
   }
 
-  class ValueHolderFactory {
-   public:
-    ValueHolderFactory() {}
-    virtual ~ValueHolderFactory() {}
-    virtual ValueHolder* MakeNewHolder() const = 0;
-
-   private:
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory);
-  };
-
-  class DefaultValueHolderFactory : public ValueHolderFactory {
-   public:
-    DefaultValueHolderFactory() {}
-    virtual ValueHolder* MakeNewHolder() const { return new ValueHolder(); }
-
-   private:
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory);
-  };
-
-  class InstanceValueHolderFactory : public ValueHolderFactory {
-   public:
-    explicit InstanceValueHolderFactory(const T& value) : value_(value) {}
-    virtual ValueHolder* MakeNewHolder() const {
-      return new ValueHolder(value_);
-    }
-
-   private:
-    const T value_;  // The value for each thread.
-
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory);
-  };
-
   // A key pthreads uses for looking up per-thread values.
   const pthread_key_t key_;
-  scoped_ptr<ValueHolderFactory> default_factory_;
+  const T default_;  // The default value for each thread.
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
 };
 
-# endif  // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
+# endif  // OS detection
 
 #else  // GTEST_IS_THREADSAFE
 
@@ -2297,7 +2057,7 @@ class GTestMutexLock {
 typedef GTestMutexLock MutexLock;
 
 template <typename T>
-class GTEST_API_ ThreadLocal {
+class ThreadLocal {
  public:
   ThreadLocal() : value_() {}
   explicit ThreadLocal(const T& value) : value_(value) {}
@@ -2316,13 +2076,12 @@ class GTEST_API_ ThreadLocal {
 GTEST_API_ size_t GetThreadCount();
 
 // Passing non-POD classes through ellipsis (...) crashes the ARM
-// compiler and generates a warning in Sun Studio before 12u4. The Nokia Symbian
+// compiler and generates a warning in Sun Studio.  The Nokia Symbian
 // and the IBM XL C/C++ compiler try to instantiate a copy constructor
 // for objects passed through ellipsis (...), failing for uncopyable
 // objects.  We define this to ensure that only POD is passed through
 // ellipsis on these systems.
-#if defined(__SYMBIAN32__) || defined(__IBMCPP__) || \
-     (defined(__SUNPRO_CC) && __SUNPRO_CC < 0x5130)
+#if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC)
 // We lose support for NULL detection where the compiler doesn't like
 // passing non-POD classes through ellipsis (...).
 # define GTEST_ELLIPSIS_NEEDS_POD_ 1
@@ -2348,13 +2107,6 @@ template <bool bool_value> const bool bool_constant<bool_value>::value;
 typedef bool_constant<false> false_type;
 typedef bool_constant<true> true_type;
 
-template <typename T, typename U>
-struct is_same : public false_type {};
-
-template <typename T>
-struct is_same<T, T> : public true_type {};
-
-
 template <typename T>
 struct is_pointer : public false_type {};
 
@@ -2366,7 +2118,6 @@ struct IteratorTraits {
   typedef typename Iterator::value_type value_type;
 };
 
-
 template <typename T>
 struct IteratorTraits<T*> {
   typedef T value_type;
@@ -2428,13 +2179,6 @@ inline char ToUpper(char ch) {
   return static_cast<char>(toupper(static_cast<unsigned char>(ch)));
 }
 
-inline std::string StripTrailingSpaces(std::string str) {
-  std::string::iterator it = str.end();
-  while (it != str.begin() && IsSpace(*--it))
-    it = str.erase(it);
-  return str;
-}
-
 // The testing::internal::posix namespace holds wrappers for common
 // POSIX functions.  These wrappers hide the differences between
 // Windows/MSVC and POSIX systems.  Since some compilers define these
@@ -2498,7 +2242,7 @@ inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
 
 // Functions deprecated by MSVC 8.0.
 
-GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
+GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996 /* deprecated function */)
 
 inline const char* StrNCpy(char* dest, const char* src, size_t n) {
   return strncpy(dest, src, n);
@@ -2532,9 +2276,8 @@ inline int Close(int fd) { return close(fd); }
 inline const char* StrError(int errnum) { return strerror(errnum); }
 #endif
 inline const char* GetEnv(const char* name) {
-#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT
+#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE | GTEST_OS_WINDOWS_RT
   // We are on Windows CE, which has no environment variables.
-  static_cast<void>(name);  // To prevent 'unused argument' warning.
   return NULL;
 #elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
   // Environment variables which we programmatically clear will be set to the
@@ -2546,7 +2289,7 @@ inline const char* GetEnv(const char* name) {
 #endif
 }
 
-GTEST_DISABLE_MSC_DEPRECATED_POP_()
+GTEST_DISABLE_MSC_WARNINGS_POP_()
 
 #if GTEST_OS_WINDOWS_MOBILE
 // Windows CE has no C library. The abort() function is used in
@@ -2647,44 +2390,31 @@ typedef TypeWithSize<8>::Int TimeInMillis;  // Represents time in milliseconds.
 // Utilities for command line flags and environment variables.
 
 // Macro for referencing flags.
-#if !defined(GTEST_FLAG)
-# define GTEST_FLAG(name) FLAGS_gtest_##name
-#endif  // !defined(GTEST_FLAG)
-
-#if !defined(GTEST_USE_OWN_FLAGFILE_FLAG_)
-# define GTEST_USE_OWN_FLAGFILE_FLAG_ 1
-#endif  // !defined(GTEST_USE_OWN_FLAGFILE_FLAG_)
-
-#if !defined(GTEST_DECLARE_bool_)
-# define GTEST_FLAG_SAVER_ ::testing::internal::GTestFlagSaver
+#define GTEST_FLAG(name) FLAGS_gtest_##name
 
 // Macros for declaring flags.
-# define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name)
-# define GTEST_DECLARE_int32_(name) \
+#define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name)
+#define GTEST_DECLARE_int32_(name) \
     GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name)
-# define GTEST_DECLARE_string_(name) \
+#define GTEST_DECLARE_string_(name) \
     GTEST_API_ extern ::std::string GTEST_FLAG(name)
 
 // Macros for defining flags.
-# define GTEST_DEFINE_bool_(name, default_val, doc) \
+#define GTEST_DEFINE_bool_(name, default_val, doc) \
     GTEST_API_ bool GTEST_FLAG(name) = (default_val)
-# define GTEST_DEFINE_int32_(name, default_val, doc) \
+#define GTEST_DEFINE_int32_(name, default_val, doc) \
     GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val)
-# define GTEST_DEFINE_string_(name, default_val, doc) \
+#define GTEST_DEFINE_string_(name, default_val, doc) \
     GTEST_API_ ::std::string GTEST_FLAG(name) = (default_val)
 
-#endif  // !defined(GTEST_DECLARE_bool_)
-
 // Thread annotations
-#if !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_)
-# define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks)
-# define GTEST_LOCK_EXCLUDED_(locks)
-#endif  // !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_)
+#define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks)
+#define GTEST_LOCK_EXCLUDED_(locks)
 
 // Parses 'str' for a 32-bit signed integer.  If successful, writes the result
 // to *value and returns true; otherwise leaves *value unchanged and returns
 // false.
-// FIXME: Find a better way to refactor flag and environment parsing
+// TODO(chandlerc): Find a better way to refactor flag and environment parsing
 // out of both gtest-port.cc and gtest.cc to avoid exporting this utility
 // function.
 bool ParseInt32(const Message& src_text, const char* str, Int32* value);
@@ -2693,10 +2423,10 @@ bool ParseInt32(const Message& src_text, const char* str, Int32* value);
 // corresponding to the given Google Test flag.
 bool BoolFromGTestEnv(const char* flag, bool default_val);
 GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val);
-std::string OutputFlagAlsoCheckEnvVar();
 const char* StringFromGTestEnv(const char* flag, const char* default_val);
 
 }  // namespace internal
 }  // namespace testing
 
 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
+
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-string.h b/gtests/google_test/gtest/include/gtest/internal/gtest-string.h
index 4c9b6262c..97f1a7fdd 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-string.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-string.h
@@ -27,17 +27,17 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// The Google C++ Testing and Mocking Framework (Google Test)
+// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee)
+//
+// The Google C++ Testing Framework (Google Test)
 //
 // This header file declares the String class and functions used internally by
 // Google Test.  They are subject to change without notice. They should not used
 // by code external to Google Test.
 //
-// This header file is #included by gtest-internal.h.
+// This header file is #included by <gtest/internal/gtest-internal.h>.
 // It should not be #included by other files.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_STRING_H_
 
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h b/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h
index 78a3a6a01..e9b405340 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h
@@ -30,12 +30,11 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: wan@google.com (Zhanyong Wan)
 
 // Implements a subset of TR1 tuple needed by Google Test and Google Mock.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
 
@@ -43,7 +42,7 @@
 
 // The compiler used in Symbian has a bug that prevents us from declaring the
 // tuple template as a friend (it complains that tuple is redefined).  This
-// bypasses the bug by declaring the members that should otherwise be
+// hack bypasses the bug by declaring the members that should otherwise be
 // private as public.
 // Sun Studio versions < 12 also have the above bug.
 #if defined(__SYMBIAN32__) || (defined(__SUNPRO_CC) && __SUNPRO_CC < 0x590)
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h.pump b/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h.pump
index bb626e049..429ddfeec 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h.pump
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-tuple.h.pump
@@ -29,12 +29,11 @@ $$ This meta comment fixes auto-indentation in Emacs. }}
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: wan@google.com (Zhanyong Wan)
 
 // Implements a subset of TR1 tuple needed by Google Test and Google Mock.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
 
@@ -42,7 +41,7 @@ $$ This meta comment fixes auto-indentation in Emacs. }}
 
 // The compiler used in Symbian has a bug that prevents us from declaring the
 // tuple template as a friend (it complains that tuple is redefined).  This
-// bypasses the bug by declaring the members that should otherwise be
+// hack bypasses the bug by declaring the members that should otherwise be
 // private as public.
 // Sun Studio versions < 12 also have the above bug.
 #if defined(__SYMBIAN32__) || (defined(__SUNPRO_CC) && __SUNPRO_CC < 0x590)
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h b/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h
index 28e411245..e46f7cfcb 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h
@@ -30,7 +30,8 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: wan@google.com (Zhanyong Wan)
 
 // Type utilities needed for implementing typed and type-parameterized
 // tests.  This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
@@ -40,8 +41,6 @@
 // Please contact googletestframework@googlegroups.com if you need
 // more.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
 
@@ -58,22 +57,6 @@
 namespace testing {
 namespace internal {
 
-// Canonicalizes a given name with respect to the Standard C++ Library.
-// This handles removing the inline namespace within `std` that is
-// used by various standard libraries (e.g., `std::__1`).  Names outside
-// of namespace std are returned unmodified.
-inline std::string CanonicalizeForStdLibVersioning(std::string s) {
-  static const char prefix[] = "std::__";
-  if (s.compare(0, strlen(prefix), prefix) == 0) {
-    std::string::size_type end = s.find("::", strlen(prefix));
-    if (end != s.npos) {
-      // Erase everything between the initial `std` and the second `::`.
-      s.erase(strlen("std"), end - strlen("std"));
-    }
-  }
-  return s;
-}
-
 // GetTypeName<T>() returns a human-readable name of type T.
 // NB: This function is also used in Google Mock, so don't move it inside of
 // the typed-test-only section below.
@@ -92,7 +75,7 @@ std::string GetTypeName() {
   char* const readable_name = __cxa_demangle(name, 0, 0, &status);
   const std::string name_str(status == 0 ? readable_name : name);
   free(readable_name);
-  return CanonicalizeForStdLibVersioning(name_str);
+  return name_str;
 #  else
   return name;
 #  endif  // GTEST_HAS_CXXABI_H_ || __HP_aCC
diff --git a/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h.pump b/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h.pump
index 0001a5d39..251fdf025 100644
--- a/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h.pump
+++ b/gtests/google_test/gtest/include/gtest/internal/gtest-type-util.h.pump
@@ -28,7 +28,8 @@ $var n = 50  $$ Maximum length of type lists we want to support.
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+//
+// Author: wan@google.com (Zhanyong Wan)
 
 // Type utilities needed for implementing typed and type-parameterized
 // tests.  This file is generated by a SCRIPT.  DO NOT EDIT BY HAND!
@@ -38,8 +39,6 @@ $var n = 50  $$ Maximum length of type lists we want to support.
 // Please contact googletestframework@googlegroups.com if you need
 // more.
 
-// GOOGLETEST_CM0001 DO NOT DELETE
-
 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
 
@@ -56,22 +55,6 @@ $var n = 50  $$ Maximum length of type lists we want to support.
 namespace testing {
 namespace internal {
 
-// Canonicalizes a given name with respect to the Standard C++ Library.
-// This handles removing the inline namespace within `std` that is
-// used by various standard libraries (e.g., `std::__1`).  Names outside
-// of namespace std are returned unmodified.
-inline std::string CanonicalizeForStdLibVersioning(std::string s) {
-  static const char prefix[] = "std::__";
-  if (s.compare(0, strlen(prefix), prefix) == 0) {
-    std::string::size_type end = s.find("::", strlen(prefix));
-    if (end != s.npos) {
-      // Erase everything between the initial `std` and the second `::`.
-      s.erase(strlen("std"), end - strlen("std"));
-    }
-  }
-  return s;
-}
-
 // GetTypeName<T>() returns a human-readable name of type T.
 // NB: This function is also used in Google Mock, so don't move it inside of
 // the typed-test-only section below.
@@ -90,7 +73,7 @@ std::string GetTypeName() {
   char* const readable_name = __cxa_demangle(name, 0, 0, &status);
   const std::string name_str(status == 0 ? readable_name : name);
   free(readable_name);
-  return CanonicalizeForStdLibVersioning(name_str);
+  return name_str;
 #  else
   return name;
 #  endif  // GTEST_HAS_CXXABI_H_ || __HP_aCC