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// (C) Copyright Matt Borland 2022.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <random>
#include <limits>
#include <benchmark/benchmark.h>
#include <boost/math/special_functions/logaddexp.hpp>
using boost::math::logaddexp;
template <typename Real>
void logaddexp_performance(benchmark::State& state)
{
std::random_device rd;
std::mt19937_64 mt {rd()};
std::uniform_real_distribution<long double> dist(1e-50, 5e-50);
Real x = static_cast<Real>(dist(mt));
Real y = static_cast<Real>(dist(mt));
for (auto _ : state)
{
benchmark::DoNotOptimize(logaddexp(x, y));
x += std::numeric_limits<Real>::epsilon();
y += std::numeric_limits<Real>::epsilon();
}
}
BENCHMARK_TEMPLATE(logaddexp_performance, float);
BENCHMARK_TEMPLATE(logaddexp_performance, double);
BENCHMARK_TEMPLATE(logaddexp_performance, long double);
BENCHMARK_MAIN();
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