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48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2018 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_RATIONAL_IO_HPP
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#define SPROUT_RATIONAL_IO_HPP
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#include <istream>
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#include <ostream>
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#include <sprout/config.hpp>
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#include <sprout/rational/rational.hpp>
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#include <sprout/detail/io/ios_state.hpp>
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namespace sprout {
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//
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// operator>>
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// operator<<
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//
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template<typename Elem, typename Traits, typename IntType>
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inline SPROUT_NON_CONSTEXPR std::basic_istream<Elem, Traits>&
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operator>>(std::basic_istream<Elem, Traits>& lhs, sprout::rational<IntType>& rhs) {
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IntType n = IntType(0);
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IntType d = IntType(1);
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Elem c = 0;
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sprout::detail::io::ios_flags_saver saver(lhs);
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lhs >> n;
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c = lhs.get();
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if (c != Elem('/')) {
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lhs.clear(std::istream::badbit);
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}
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lhs >> std::noskipws;
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lhs >> d;
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if (lhs) {
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rhs.assign(n, d);
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}
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return lhs;
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}
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template<typename Elem, typename Traits, typename IntType>
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inline SPROUT_NON_CONSTEXPR std::basic_ostream<Elem, Traits>&
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operator<<(std::basic_ostream<Elem, Traits>& lhs, sprout::rational<IntType> const& rhs) {
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return lhs << rhs.numerator() << Elem('/') << rhs.denominator();
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}
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} // namespace sprout
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#endif // SPROUT_RATIONAL_IO_HPP
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