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34 lines
1.3 KiB
C++
34 lines
1.3 KiB
C++
// Copyright John Maddock 2013.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// This file verifies that certain core functions are always
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// available, even when long double support is patchy at best
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// and BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS is defined.
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//
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#define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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#define BOOST_TEST_MAIN
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#include <boost/test/unit_test.hpp> // Boost.Test
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#include <boost/math/special_functions/sign.hpp>
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#include <boost/math/special_functions/fpclassify.hpp>
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BOOST_AUTO_TEST_CASE( test_main )
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{
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BOOST_CHECK_EQUAL((boost::math::signbit)(1.0L), 0.0L);
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BOOST_CHECK((boost::math::signbit)(-1.0L) != 0);
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BOOST_CHECK_EQUAL((boost::math::sign)(1.0L), 1.0L);
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BOOST_CHECK_EQUAL((boost::math::sign)(-1.0L), -1.0L);
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BOOST_CHECK_EQUAL((boost::math::changesign)(1.0L), -1.0L);
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BOOST_CHECK_EQUAL((boost::math::changesign)(-1.0L), 1.0L);
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BOOST_CHECK_EQUAL((boost::math::fpclassify)(1.0L), (int)FP_NORMAL);
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BOOST_CHECK_EQUAL((boost::math::isnan)(1.0L), false);
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BOOST_CHECK_EQUAL((boost::math::isinf)(1.0L), false);
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BOOST_CHECK_EQUAL((boost::math::isnormal)(1.0L), true);
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BOOST_CHECK_EQUAL((boost::math::isfinite)(1.0L), true);
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} // BOOST_AUTO_TEST_CASE( test_main )
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