66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2014-2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_RATIONAL_HPP
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#define __UTIL_RATIONAL_HPP
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#include <type_traits>
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namespace util {
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template <typename T>
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struct rational {
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static_assert (std::is_integral<T>::value, "only defined for integer types");
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rational (const rational&) = default;
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rational (T n, T d);
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explicit rational (T);
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bool operator== (rational) const;
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bool operator!= (rational) const;
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bool operator< (rational) const;
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bool operator>= (rational) const;
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explicit operator float (void) const;
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explicit operator double (void) const;
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explicit operator int (void) const;
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rational<T> reduced (void) const;
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rational<T> inverse (void) const;
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rational<T>& invert (void);
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rational<T> operator+ (T) const;
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rational<T> operator- (T) const;
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rational<T> operator* (T) const;
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rational<T> operator/ (T) const;
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T n;
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T d;
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};
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template <typename T, typename U>
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rational<typename std::common_type<T,U>::type>
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operator/ (U, rational<T>);
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template <typename T, typename U>
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rational<typename std::common_type<T,U>::type>
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operator* (U, rational<T>);
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}
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#include "rational.ipp"
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#endif
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