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- // Copyright 2017 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef BASE_NUMERICS_RANGES_H_
- #define BASE_NUMERICS_RANGES_H_
- #include <algorithm>
- #include <cmath>
- namespace base {
- // To be replaced with std::clamp() from C++17, someday.
- template <class T>
- constexpr const T& ClampToRange(const T& value, const T& min, const T& max) {
- return std::min(std::max(value, min), max);
- }
- template <typename T>
- constexpr bool IsApproximatelyEqual(T lhs, T rhs, T tolerance) {
- static_assert(std::is_arithmetic<T>::value, "Argument must be arithmetic");
- return std::abs(rhs - lhs) <= tolerance;
- }
- } // namespace base
- #endif // BASE_NUMERICS_RANGES_H_
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