static void BM_memcpy()

in BenchmarkNdkSample/benchmark/cpp/benchmark/SampleBenchmarks.cpp [47:62]

• 13 lines of code
• 2 McCabe index (conditional complexity)

static void BM_memcpy(benchmark::State& state) {
    char* src = new char[state.range(0)];
    char* dst = new char[state.range(0)];
    memset(src, 'x', (size_t) state.range(0));
    while (state.KeepRunning()) {
        memcpy(dst, src, (size_t) state.range(0));

        // DoNotOptimize is needed to prevent the compiler from optimizing away the memcpy()
        // Comment out this line to see the benchmark result (incorrectly) go to near 0!
        ::benchmark::DoNotOptimize(dst);
    }
    state.SetBytesProcessed(
            int64_t(state.iterations()) * int64_t(state.range(0)));
    delete[] src;
    delete[] dst;
}