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// Copyright (c) 2015 Boost.Test team
// 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)
// See http://www.boost.org/libs/test for the library home page.
//[example_code
#define BOOST_TEST_MODULE tolerance_04
#include <boost/test/included/unit_test.hpp>
#include <boost/rational.hpp>
namespace utf = boost::unit_test;
namespace tt = boost::test_tools;
namespace boost { namespace math { namespace fpc {
template <typename I>
struct tolerance_based< rational<I> > : boost::true_type{};
} } }
typedef boost::rational<int> ratio;
BOOST_AUTO_TEST_CASE(test1, * utf::tolerance(ratio(1, 1000)))
{
ratio x (1002, 100); // 10.02
ratio y (1001, 100); // 10.01
ratio z (1000, 100); // 10.00
BOOST_TEST(x == y); // irrelevant diff by default
BOOST_TEST(x == y, tt::tolerance(ratio(1, 2000)));
BOOST_TEST(x != z); // relevant diff by default
BOOST_TEST(x != z, tt::tolerance(ratio(2, 1000)));
}
//]
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