101 lines
2.6 KiB
C++
101 lines
2.6 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 Danny Robson <danny@nerdcruft.net>
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*/
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#include "rational.hpp"
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#include <cstdint>
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using util::rational;
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//-----------------------------------------------------------------------------
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template <typename T>
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rational<T>::rational (T _n, T _d):
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n (_n),
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d (_d)
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{ ; }
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//-----------------------------------------------------------------------------
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template <typename T>
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bool
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rational<T>::operator== (const rational<T> &rhs) {
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return rhs.n == n && rhs.d == d;
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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rational<T>::operator float (void) const {
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return static_cast<float> (n) / d;
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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rational<T>::operator double (void) const {
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return static_cast<double> (n) / d;
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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rational<T>::operator int (void) const {
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return n / d;
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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rational<T>
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rational<T>::inverse (void) const {
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return rational<T> { d, n };
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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template <typename U>
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rational<T>
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rational<T>::operator* (const U &rhs) const {
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return { rhs * n, d };
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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template <typename U>
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rational<T>
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rational<T>::operator/ (const U &rhs) const {
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return { n, rhs * d };
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename U>
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rational<T>
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util::operator/ (U lhs, rational<T> rhs) {
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return rhs.inverse () * lhs;
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}
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//-----------------------------------------------------------------------------
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namespace util {
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template struct rational<uint32_t>;
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template struct rational<int32_t>;
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template rational<uint32_t> operator/ (int, rational<uint32_t>);
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}
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