Initial commit

libs/math/test/test_ldouble_simple.cpp

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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 )
+