Add some std:: qualifiers to types and functions.

PiperOrigin-RevId: 309110343

3 files changed, 48 insertions, 46 deletions

diff --git a/snappy-test.cc b/snappy-test.cc
index 7149f2e..e7762a3 100644
--- a/snappy-test.cc
+++ b/snappy-test.cc
@@ -69,9 +69,9 @@ std::string ReadTestDataFile(const std::string& base) {
 
 std::string StrFormat(const char* format, ...) {
   char buf[4096];
-  va_list ap;
+  std::va_list ap;
   va_start(ap, format);
-  vsnprintf(buf, sizeof(buf), format, ap);
+  std::vsnprintf(buf, sizeof(buf), format, ap);
   va_end(ap);
   return buf;
 }
@@ -104,8 +104,8 @@ void StartBenchmarkTiming() {
 #else
   gettimeofday(&benchmark_start_real, NULL);
   if (getrusage(RUSAGE_SELF, &benchmark_start_cpu) == -1) {
-    perror("getrusage(RUSAGE_SELF)");
-    exit(1);
+    std::perror("getrusage(RUSAGE_SELF)");
+    std::exit(1);
   }
 #endif
   benchmark_running = true;
@@ -151,8 +151,8 @@ void StopBenchmarkTiming() {
 
   struct rusage benchmark_stop_cpu;
   if (getrusage(RUSAGE_SELF, &benchmark_stop_cpu) == -1) {
-    perror("getrusage(RUSAGE_SELF)");
-    exit(1);
+    std::perror("getrusage(RUSAGE_SELF)");
+    std::exit(1);
   }
   benchmark_cpu_time_us += 1000000 * (benchmark_stop_cpu.ru_utime.tv_sec -
                                       benchmark_start_cpu.ru_utime.tv_sec);
@@ -246,7 +246,7 @@ void Benchmark::Run() {
       }
     }
 
-    fprintf(stderr,
+    std::fprintf(stderr,
 #ifdef WIN32
             "%-18s %10I64d %10I64d %10d %s  %s\n",
 #else
diff --git a/snappy-test.h b/snappy-test.h
index 682998b..633c69b 100644
--- a/snappy-test.h
+++ b/snappy-test.h
@@ -119,10 +119,10 @@ namespace file {
 
   DummyStatus GetContents(
       const std::string& filename, std::string* data, int unused) {
-    FILE* fp = fopen(filename.c_str(), "rb");
+    FILE* fp = std::fopen(filename.c_str(), "rb");
     if (fp == NULL) {
-      perror(filename.c_str());
-      exit(1);
+      std::perror(filename.c_str());
+      std::exit(1);
     }
 
     data->clear();
@@ -130,32 +130,32 @@ namespace file {
       char buf[4096];
       size_t ret = fread(buf, 1, 4096, fp);
       if (ret == 0 && ferror(fp)) {
-        perror("fread");
-        exit(1);
+        std::perror("fread");
+        std::exit(1);
       }
       data->append(std::string(buf, ret));
     }
 
-    fclose(fp);
+    std::fclose(fp);
 
     return DummyStatus();
   }
 
   inline DummyStatus SetContents(
       const std::string& filename, const std::string& str, int unused) {
-    FILE* fp = fopen(filename.c_str(), "wb");
+    FILE* fp = std::fopen(filename.c_str(), "wb");
     if (fp == NULL) {
-      perror(filename.c_str());
-      exit(1);
+      std::perror(filename.c_str());
+      std::exit(1);
     }
 
-    int ret = fwrite(str.data(), str.size(), 1, fp);
+    int ret = std::fwrite(str.data(), str.size(), 1, fp);
     if (ret != 1) {
-      perror("fwrite");
-      exit(1);
+      std::std::perror("fwrite");
+      std::exit(1);
     }
 
-    fclose(fp);
+    std::fclose(fp);
 
     return DummyStatus();
   }
@@ -184,7 +184,7 @@ std::string ReadTestDataFile(const std::string& base, size_t size_limit);
 
 std::string ReadTestDataFile(const std::string& base);
 
-// A sprintf() variant that returns a std::string.
+// A std::sprintf() variant that returns a std::string.
 // Not safe for general use due to truncation issues.
 std::string StrFormat(const char* format, ...);
 
@@ -403,15 +403,17 @@ static inline void RunSpecifiedBenchmarks() {
     return;
   }
 
-  fprintf(stderr, "Running microbenchmarks.\n");
+  std::fprintf(stderr, "Running microbenchmarks.\n");
 #ifndef NDEBUG
-  fprintf(stderr, "WARNING: Compiled with assertions enabled, will be slow.\n");
+  std::fprintf(stderr,
+               "WARNING: Compiled with assertions enabled, will be slow.\n");
 #endif
 #ifndef __OPTIMIZE__
-  fprintf(stderr, "WARNING: Compiled without optimization, will be slow.\n");
+  std::fprintf(stderr,
+               "WARNING: Compiled without optimization, will be slow.\n");
 #endif
-  fprintf(stderr, "Benchmark            Time(ns)    CPU(ns) Iterations\n");
-  fprintf(stderr, "---------------------------------------------------\n");
+  std::fprintf(stderr, "Benchmark            Time(ns)    CPU(ns) Iterations\n");
+  std::fprintf(stderr, "---------------------------------------------------\n");
 
   snappy::Benchmark_BM_UFlat->Run();
   snappy::Benchmark_BM_UIOVec->Run();
@@ -420,13 +422,13 @@ static inline void RunSpecifiedBenchmarks() {
   snappy::Benchmark_BM_ZFlatAll->Run();
   snappy::Benchmark_BM_ZFlatIncreasingTableSize->Run();
 
-  fprintf(stderr, "\n");
+  std::fprintf(stderr, "\n");
 }
 
 #ifndef HAVE_GTEST
 
 static inline int RUN_ALL_TESTS() {
-  fprintf(stderr, "Running correctness tests.\n");
+  std::fprintf(stderr, "Running correctness tests.\n");
   snappy::Test_CorruptedTest_VerifyCorrupted();
   snappy::Test_Snappy_SimpleTests();
   snappy::Test_Snappy_MaxBlowup();
@@ -438,7 +440,7 @@ static inline int RUN_ALL_TESTS() {
   snappy::Test_Snappy_ReadPastEndOfBuffer();
   snappy::Test_Snappy_FindMatchLength();
   snappy::Test_Snappy_FindMatchLengthRandom();
-  fprintf(stderr, "All tests passed.\n");
+  std::fprintf(stderr, "All tests passed.\n");
 
   return 0;
 }
@@ -479,8 +481,8 @@ class LogMessage {
     snappy::LogMessageVoidify() & snappy::LogMessageCrash()
 
 #ifdef _MSC_VER
-// ~LogMessageCrash calls abort() and therefore never exits. This is by design
-// so temporarily disable warning C4722.
+// ~LogMessageCrash calls std::abort() and therefore never exits. This is by
+// design, so temporarily disable warning C4722.
 #pragma warning(push)
 #pragma warning(disable:4722)
 #endif
@@ -490,7 +492,7 @@ class LogMessageCrash : public LogMessage {
   LogMessageCrash() { }
   ~LogMessageCrash() {
     std::cerr << std::endl;
-    abort();
+    std::abort();
   }
 };
 
diff --git a/snappy_unittest.cc b/snappy_unittest.cc
index c4c85fd..2ca35f6 100644
--- a/snappy_unittest.cc
+++ b/snappy_unittest.cc
@@ -348,14 +348,14 @@ static void Measure(const char* data,
   x += ":";
   std::string urate = (uncomp_rate >= 0) ? StrFormat("%.1f", uncomp_rate)
                                          : std::string("?");
-  printf("%-7s [b %dM] bytes %6d -> %6d %4.1f%%  "
-         "comp %5.1f MB/s  uncomp %5s MB/s\n",
-         x.c_str(),
-         block_size/(1<<20),
-         static_cast<int>(length), static_cast<uint32_t>(compressed_size),
-         (compressed_size * 100.0) / std::max<int>(1, length),
-         comp_rate,
-         urate.c_str());
+  std::printf("%-7s [b %dM] bytes %6d -> %6d %4.1f%%  "
+              "comp %5.1f MB/s  uncomp %5s MB/s\n",
+              x.c_str(),
+              block_size/(1<<20),
+              static_cast<int>(length), static_cast<uint32_t>(compressed_size),
+              (compressed_size * 100.0) / std::max<int>(1, length),
+              comp_rate,
+              urate.c_str());
 }
 
 static int VerifyString(const std::string& input) {
@@ -1164,13 +1164,13 @@ TEST(Snappy, VerifyCharTable) {
   }
 
   if (FLAGS_snappy_dump_decompression_table) {
-    printf("static const uint16_t char_table[256] = {\n  ");
+    std::printf("static const uint16_t char_table[256] = {\n  ");
     for (int i = 0; i < 256; i++) {
-      printf("0x%04x%s",
-             dst[i],
-             ((i == 255) ? "\n" : (((i%8) == 7) ? ",\n  " : ", ")));
+      std::printf("0x%04x%s",
+                  dst[i],
+                  ((i == 255) ? "\n" : (((i%8) == 7) ? ",\n  " : ", ")));
     }
-    printf("};\n");
+    std::printf("};\n");
   }
 
   // Check that computed table matched recorded table.
@@ -1208,7 +1208,7 @@ static void UncompressFile(const char* fname) {
 static void MeasureFile(const char* fname) {
   std::string fullinput;
   CHECK_OK(file::GetContents(fname, &fullinput, file::Defaults()));
-  printf("%-40s :\n", fname);
+  std::printf("%-40s :\n", fname);
 
   int start_len = (FLAGS_start_len < 0) ? fullinput.size() : FLAGS_start_len;
   int end_len = fullinput.size();