Remove walltime implementation tests and expose less internals

src/walltime.cc

@@ -163,9 +163,6 @@ WallTimeImp::WallTimeImp()
   last_adjust_time_ = static_cast<uint32_t>(uint64_t(base_cycletime_) >> 32);
 }
 
-} // end anonymous namespace
-
-
 WallTime CPUWalltimeNow() {
   static WallTimeImp& imp = WallTimeImp::GetWallTimeImp();
   return imp.Now();
@@ -191,6 +188,9 @@ bool UseCpuCycleClock() {
     return useWallTime;
 }
 
+
+} // end anonymous namespace
+
 // WallTimeImp doesn't work when CPU Scaling is enabled. If CPU Scaling is
 // enabled at the start of the program then std::chrono::system_clock is used
 // instead.

src/walltime.h

@@ -7,8 +7,6 @@ namespace benchmark {
 typedef double WallTime;
 
 namespace walltime {
-WallTime CPUWalltimeNow();
-WallTime ChronoWalltimeNow();
 WallTime Now();
 }  // end namespace walltime
 

test/CMakeLists.txt

@@ -32,5 +32,3 @@ compile_benchmark_test(cxx03_test)
 set_target_properties(cxx03_test
     PROPERTIES COMPILE_FLAGS "${CXX03_FLAGS}")
 add_test(cxx03 cxx03_test)
-
-compile_benchmark_test(walltime_test)

test/walltime_test.cc

-
-#include <cstddef>
-
-#include "benchmark/benchmark_api.h"
-#include "../src/walltime.h"
-
-void BM_CPUTimeNow(benchmark::State& state) {
-    using benchmark::walltime::CPUWalltimeNow;
-    while (state.KeepRunning()) {
-        benchmark::WallTime volatile now;
-        now = CPUWalltimeNow();
-        now = CPUWalltimeNow();
-        now = CPUWalltimeNow();
-        now = CPUWalltimeNow();
-        now = CPUWalltimeNow();
-        ((void)now);
-    }
-}
-BENCHMARK(BM_CPUTimeNow);
-
-void BM_ChronoTimeNow(benchmark::State& state) {
-    using benchmark::walltime::ChronoWalltimeNow;
-    while (state.KeepRunning()) {
-        benchmark::WallTime volatile now;
-        now = ChronoWalltimeNow();
-        now = ChronoWalltimeNow();
-        now = ChronoWalltimeNow();
-        now = ChronoWalltimeNow();
-        now = ChronoWalltimeNow();
-        ((void)now);
-    }
-}
-BENCHMARK(BM_ChronoTimeNow);
-
-
-BENCHMARK_MAIN()