src/bench/examples.cpp


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// Copyright (c) 2015-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <bench/bench.h>

// Extremely fast-running benchmark:
#include <math.h>

volatile double sum = 0.0; // volatile, global so not optimized away

static void Trig(benchmark::Bench& bench)
{
    double d = 0.01;
    bench.run([&] {
        sum = sum + sin(d);
        d += 0.000001;
    });
}

BENCHMARK(Trig);