/*
* Copyright (c) 2011, Michael Lehn * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1) Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2) Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3) Neither the name of the FLENS development group nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef FLENS_AUXILIARY_MIN_TCC #define FLENS_AUXILIARY_MIN_TCC 1 #include <cxxstd/algorithm.h> #include <flens/auxiliary/min.h> #include <flens/auxiliary/restrictto.h> namespace flens { // // Variant 1: // All arguments have same type. Function returns a const reference. // template <typename T> const T & min(const T &a) { return a; } template <typename T> const T & min(const T &a, const T &b) { return std::min(a, b); } template <typename T, typename...Args> const typename RestrictTo<IsSame<T,Args...>::value, T>::Type & min(const T &a, const T &b, const Args &...args) { return flens::min(flens::min(a,b), args...); } // // Variant 2: // Arguments have different types. Function returns a copy // template <typename T1, typename T2> const typename Promotion<T1, T2>::Type min(const T1 &a, const T2 &b) { return (a<b) ? a : b; } template <typename T1, typename T2, typename ...Args> const typename RestrictTo<!IsSame<T1, T2, Args...>::value, typename Promotion<T1, T2, Args...>::Type>::Type min(const T1 &a, const T2 &b, const Args & ...args) { return min(min(a, b), args...); } } // namespace flens #endif // FLENS_AUXILIARY_MIN_TCC |