Ticket #8272: test_expression_template_fpt.cpp

///////////////////////////////////////////////////////////////////////////////
//  Copyright 2013 John Maddock. Distributed under 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)


#include <boost/multiprecision/cpp_dec_float.hpp>
#define BOOST_TEST_MODULE multiprecision
#include <boost/test/unit_test.hpp>

BOOST_AUTO_TEST_CASE(multiprecision)
{
   using namespace boost::multiprecision;

   cpp_dec_float_50 a(0), b(0), c(1);
   cpp_dec_float_50 eps = std::numeric_limits<cpp_dec_float_50>::epsilon();

   BOOST_CHECK_EQUAL(a, b);
   BOOST_CHECK_NE(a, c);
   BOOST_CHECK_LE(a, b);
   BOOST_CHECK_GE(a, b);
   BOOST_CHECK_GT(c, a);
   BOOST_CHECK_LT(a, c);

   BOOST_CHECK_SMALL(a, eps);
   BOOST_CHECK_SMALL(eps/2, eps);

   b = c + 10 * eps;

   BOOST_CHECK_CLOSE_FRACTION(b, c, eps * 20);
   BOOST_CHECK_CLOSE(b, c, eps * 20 * 100);

   BOOST_CHECK_CLOSE_FRACTION(1 * b, c, eps * 20);
   BOOST_CHECK_CLOSE(1 * b, c, eps * 20 * 100);
}