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- // Copyright John Maddock 2013.
- // 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)
- //
- // This file verifies that certain core functions are always
- // available, even when long double support is patchy at best
- // and BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS is defined.
- //
- #define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
- #define BOOST_TEST_MAIN
- #include <boost/test/unit_test.hpp> // Boost.Test
- #include <boost/math/special_functions/sign.hpp>
- #include <boost/math/special_functions/fpclassify.hpp>
- BOOST_AUTO_TEST_CASE( test_main )
- {
- BOOST_CHECK_EQUAL((boost::math::signbit)(1.0L), 0.0L);
- BOOST_CHECK((boost::math::signbit)(-1.0L) != 0);
- BOOST_CHECK_EQUAL((boost::math::sign)(1.0L), 1.0L);
- BOOST_CHECK_EQUAL((boost::math::sign)(-1.0L), -1.0L);
- BOOST_CHECK_EQUAL((boost::math::changesign)(1.0L), -1.0L);
- BOOST_CHECK_EQUAL((boost::math::changesign)(-1.0L), 1.0L);
- BOOST_CHECK_EQUAL((boost::math::fpclassify)(1.0L), (int)FP_NORMAL);
- BOOST_CHECK_EQUAL((boost::math::isnan)(1.0L), false);
- BOOST_CHECK_EQUAL((boost::math::isinf)(1.0L), false);
- BOOST_CHECK_EQUAL((boost::math::isnormal)(1.0L), true);
- BOOST_CHECK_EQUAL((boost::math::isfinite)(1.0L), true);
- } // BOOST_AUTO_TEST_CASE( test_main )
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