37 lines
1.0 KiB
C++
37 lines
1.0 KiB
C++
// Copyright (c) 2015 Boost.Test team
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/test for the library home page.
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//[example_code
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#define BOOST_TEST_MODULE tolerance_04
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#include <boost/test/included/unit_test.hpp>
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#include <boost/rational.hpp>
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namespace utf = boost::unit_test;
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namespace tt = boost::test_tools;
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namespace boost { namespace math { namespace fpc {
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template <typename I>
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struct tolerance_based< rational<I> > : boost::true_type{};
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} } }
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typedef boost::rational<int> ratio;
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BOOST_AUTO_TEST_CASE(test1, * utf::tolerance(ratio(1, 1000)))
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{
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ratio x (1002, 100); // 10.02
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ratio y (1001, 100); // 10.01
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ratio z (1000, 100); // 10.00
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BOOST_TEST(x == y); // irrelevant diff by default
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BOOST_TEST(x == y, tt::tolerance(ratio(1, 2000)));
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BOOST_TEST(x != z); // relevant diff by default
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BOOST_TEST(x != z, tt::tolerance(ratio(2, 1000)));
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}
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//]
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