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#include "benchmark/benchmark.h"
#include <cstdint>
namespace {
#if defined(__GNUC__)
std::uint64_t double_up(const std::uint64_t x) __attribute__ ((const));
#endif
std::uint64_t double_up(const std::uint64_t x) {
return x * 2;
}
}
int main(int, char*[]) {
// this test verifies compilation of DoNotOptimize() for some types
char buffer8[8];
benchmark::DoNotOptimize(buffer8);
char buffer20[20];
benchmark::DoNotOptimize(buffer20);
char buffer1024[1024];
benchmark::DoNotOptimize(buffer1024);
benchmark::DoNotOptimize(&buffer1024[0]);
int x = 123;
benchmark::DoNotOptimize(x);
benchmark::DoNotOptimize(&x);
benchmark::DoNotOptimize(x += 42);
benchmark::DoNotOptimize(double_up(x));
return 0;
}
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