PRNG_TESTS/main.cpp

#include <iostream>
#include "ChaPRNG.h"
#include <benchmark/benchmark.h>
#include <chrono>
#include <random>

using namespace std::chrono_literals;


template<int T, bool u, bool v>
static void PRNGBuild(benchmark::State& state) {
	std::random_device dev;
	std::array<uint32_t,12> seed{
		dev(),dev(),dev(),dev(),
		dev(),dev(),dev(),dev(),
		dev(),dev(),dev(),dev()
	};
	ChaPRNG<T,u,v> prng(seed);
	for(auto _ : state)
		prng();
}

BENCHMARK(PRNGBuild<8, false, false>);
BENCHMARK(PRNGBuild<12, false, false>);
BENCHMARK(PRNGBuild<16, false, false>);
BENCHMARK(PRNGBuild<20, false, false>);

BENCHMARK(PRNGBuild<8, true, false>);
BENCHMARK(PRNGBuild<12, true, false>);
BENCHMARK(PRNGBuild<16, true, false>);
BENCHMARK(PRNGBuild<20, true, false>);

BENCHMARK(PRNGBuild<8, false, true>);
BENCHMARK(PRNGBuild<12, false, true>);
BENCHMARK(PRNGBuild<16, false, true>);
BENCHMARK(PRNGBuild<20, false, true>);

BENCHMARK(PRNGBuild<4, true, true>);
BENCHMARK(PRNGBuild<6, true, true>);
BENCHMARK(PRNGBuild<8, true, true>);
BENCHMARK(PRNGBuild<12, true, true>);
BENCHMARK(PRNGBuild<16, true, true>);
BENCHMARK(PRNGBuild<20, true, true>);



static void std_mtPRNGBuild(benchmark::State& state) {
	std::random_device dev;
	std::mt19937 prng(dev());
	for(auto _ : state)
		prng();
}
BENCHMARK(std_mtPRNGBuild);

BENCHMARK_MAIN();