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43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
// (C) Copyright John Maddock 2025.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/math/special_functions/ulp.hpp>
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#define BOOST_TEST_MAIN
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#include <boost/test/unit_test.hpp>
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#include <boost/test/tools/floating_point_comparison.hpp>
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#include <boost/multiprecision/cpp_dec_float.hpp>
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template <class T>
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void test()
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{
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//
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// Really just test our error handling:
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//
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BOOST_MATH_IF_CONSTEXPR(std::numeric_limits<T>::has_quiet_NaN)
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{
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BOOST_CHECK_THROW(boost::math::ulp(std::numeric_limits<T>::quiet_NaN()), std::domain_error);
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}
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BOOST_MATH_IF_CONSTEXPR(std::numeric_limits<T>::has_infinity)
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{
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BOOST_CHECK_THROW(boost::math::ulp(std::numeric_limits<T>::infinity()), std::overflow_error);
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}
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BOOST_CHECK_THROW(boost::math::ulp(boost::math::tools::max_value<T>()), std::overflow_error);
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BOOST_CHECK(boost::math::ulp(static_cast<T>(0)) != 0);
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}
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BOOST_AUTO_TEST_CASE( test_main )
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{
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test<float>();
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test<double>();
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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test<long double>();
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#endif
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test<boost::multiprecision::cpp_dec_float_50>();
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}
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