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-rw-r--r--include/gtest/internal/gtest-port.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/gtest/internal/gtest-port.h b/include/gtest/internal/gtest-port.h
index 054851b..9773631 100644
--- a/include/gtest/internal/gtest-port.h
+++ b/include/gtest/internal/gtest-port.h
@@ -96,8 +96,8 @@
//
// Macros for basic C++ coding:
// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
-// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances don't have to
-// be used.
+// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a
+// variable don't have to be used.
// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used.
//
@@ -439,7 +439,7 @@
#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: // NOLINT
#endif
-// Use this annotation at the end of a struct / class definition to
+// Use this annotation at the end of a struct/class definition to
// prevent the compiler from optimizing away instances that are never
// used. This is useful when all interesting logic happens inside the
// c'tor and / or d'tor. Example:
@@ -447,6 +447,9 @@
// struct Foo {
// Foo() { ... }
// } GTEST_ATTRIBUTE_UNUSED_;
+//
+// Also use it after a variable or parameter declaration to tell the
+// compiler the variable/parameter does not have to be used.
#if defined(__GNUC__) && !defined(COMPILER_ICC)
#define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
#else