Fixed some compilation issues on windwos

Author: devjgm

examples/classic.cc

@@ -26,10 +26,18 @@ int main() {
   const std::time_t now = std::time(nullptr);
 
   std::tm tm_utc;
+#if defined(_WIN32) || defined(_WIN64)
+  gmtime_s(&tm_utc, &now);
+#else
   gmtime_r(&now, &tm_utc);
+#endif
   std::cout << format("UTC: %Y-%m-%d %H:%M:%S\n", tm_utc);
 
   std::tm tm_local;
+#if defined(_WIN32) || defined(_WIN64)
+  localtime_s(&tm_local, &now);
+#else
   localtime_r(&now, &tm_local);
+#endif
   std::cout << format("Local: %Y-%m-%d %H:%M:%S\n", tm_local);
 }

examples/epoch_shift.cc

@@ -34,7 +34,11 @@ int main() {
   int off = GetOffset(now, "America/New_York");
   const std::time_t now_nyc = now + off;
   std::tm tm_nyc;
+#if defined(_WIN32) || defined(_WIN64)
+  gmtime_s(&tm_nyc, &now_nyc);
+#else
   gmtime_r(&now_nyc, &tm_nyc);
+#endif
   std::cout << format("NYC: %Y-%m-%d %H:%M:%S\n", tm_nyc);
 
   // Shift back: "local time_t" to UTC

src/benchmarks.cc

@@ -794,7 +794,11 @@ void BM_Time_ToDateTime_Libc(benchmark::State& state) {
   while (state.KeepRunning()) {
     std::swap(t, t2);
     t += 1;
+#if defined(_WIN32) || defined(_WIN64)
+    benchmark::DoNotOptimize(localtime_s(&tm, &t));
+#else
     benchmark::DoNotOptimize(localtime_r(&t, &tm));
+#endif
   }
 }
 BENCHMARK(BM_Time_ToDateTime_Libc);
@@ -815,7 +819,11 @@ void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) {
   struct tm tm;
   while (state.KeepRunning()) {
     t += 1;
+#if defined(_WIN32) || defined(_WIN64)
+    benchmark::DoNotOptimize(gmtime_s(&tm, &t));
+#else
     benchmark::DoNotOptimize(gmtime_r(&t, &tm));
+#endif
   }
 }
 BENCHMARK(BM_Time_ToDateTimeUTC_Libc);
@@ -934,7 +942,7 @@ void BM_Format_FormatTime(benchmark::State& state) {
   const cctz::time_zone tz = TestTimeZone();
   const std::chrono::system_clock::time_point tp =
       cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) +
-      std::chrono::nanoseconds(1);
+      std::chrono::microseconds(1);
   while (state.KeepRunning()) {
     benchmark::DoNotOptimize(cctz::format(fmt, tp, tz));
   }
@@ -947,7 +955,7 @@ void BM_Format_ParseTime(benchmark::State& state) {
   const cctz::time_zone tz = TestTimeZone();
   std::chrono::system_clock::time_point tp =
       cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) +
-      std::chrono::nanoseconds(1);
+      std::chrono::microseconds(1);
   const std::string when = cctz::format(fmt, tp, tz);
   while (state.KeepRunning()) {
     benchmark::DoNotOptimize(cctz::parse(fmt, when, tz, &tp));