37 lines
1.3 KiB
C++
37 lines
1.3 KiB
C++
// ratio_test.cpp ----------------------------------------------------------//
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// Copyright 2008 Howard Hinnant
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// Copyright 2008 Beman Dawes
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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#include <boost/ratio/ratio.hpp>
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#include <iostream>
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typedef boost::ratio<5, 3> five_thirds; // five_thirds::num == 5, five_thirds::den == 3
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typedef boost::ratio<25, 15> also_five_thirds; // also_five_thirds::num == 5, also_five_thirds::den == 3
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typedef boost::ratio_divide<five_thirds, also_five_thirds>::type one; // one::num == 1, one::den == 1
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typedef boost::ratio_multiply<boost::ratio<5>, boost::giga>::type _5giga; // _5giga::num == 5000000000, _5giga::den == 1
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typedef boost::ratio_multiply<boost::ratio<5>, boost::nano>::type _5nano; // _5nano::num == 1, _5nano::den == 200000000
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// Test the case described in library working group issue 948.
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typedef boost::ratio<BOOST_RATIO_INTMAX_T_MAX, BOOST_RATIO_INTMAX_T_MAX-16> R1;
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typedef boost::ratio<8, 7> R2;
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typedef boost::ratio_multiply<R1, R2>::type RT;
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int main()
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{
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typedef boost::ratio<8, BOOST_RATIO_INTMAX_C(0x7FFFFFFFD)> R1;
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typedef boost::ratio<3, BOOST_RATIO_INTMAX_C(0x7FFFFFFFD)> R2;
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typedef boost::ratio_subtract<R1, R2>::type RS;
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std::cout << RS::num << '/' << RS::den << '\n';
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return 0;
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}
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