| //===--- Algorithm.h - ------------------------------------------*- C++ -*-===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines helper algorithms, some of which are ported from C++14, |
| // which may not be available on all platforms yet. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SWIFT_BASIC_ALGORITHM_H |
| #define SWIFT_BASIC_ALGORITHM_H |
| |
| namespace swift { |
| /// Returns the minimum of `a` and `b`, or `a` if they are equivalent. |
| template <typename T> |
| constexpr const T &min(const T &a, const T &b) { |
| return !(b < a) ? a : b; |
| } |
| |
| /// Returns the maximum of `a` and `b`, or `a` if they are equivalent. |
| template <typename T> |
| constexpr const T &max(const T &a, const T &b) { |
| return (a < b) ? b : a; |
| } |
| } // end namespace swift |
| |
| #endif // SWIFT_BASIC_ALGORITHM_H |
