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// Copyright Matt Borland 2024.
// 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)
#ifdef SYCL_LANGUAGE_VERSION
#include "sycl/sycl.hpp"
#endif
#include <random>
#include <cmath>
#include <boost/math/special_functions/log1p.hpp>
#include "math_unit_test.hpp"
constexpr int N = 50000;
template <typename T>
void test()
{
std::mt19937_64 rng(42);
std::uniform_real_distribution<T> dist(0, 0.01);
for (int n = 0; n < N; ++n)
{
const T value (dist(rng));
CHECK_ULP_CLOSE(std::log1p(value), boost::math::log1p(value), 10);
}
}
template <typename T>
void test_log1pmx()
{
std::mt19937_64 rng(42);
std::uniform_real_distribution<T> dist(0, 0.01);
for (int n = 0; n < N; ++n)
{
const T value (dist(rng));
CHECK_ULP_CLOSE(std::log1p(value) - value, boost::math::log1pmx(value), 1e9);
}
std::uniform_real_distribution<T> dist2(0, 10);
for (int n = 0; n < 100; ++n)
{
const T value (dist2(rng));
CHECK_ULP_CLOSE(std::log1p(value) - value, boost::math::log1pmx(value), 1e9);
}
#ifndef BOOST_MATH_NO_EXCEPTIONS
CHECK_THROW(boost::math::log1pmx(T(-1.1)), std::domain_error);
CHECK_THROW(boost::math::log1pmx(T(-1.0)), std::overflow_error);
#endif
}
int main()
{
test<float>();
test<double>();
test_log1pmx<float>();
test_log1pmx<double>();
return boost::math::test::report_errors();
}
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