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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
{
// DO NOT USE THIS FUNCTION. IT IS DUE TO BE REMOVED. https://crbug.com/1231569
// Please use base::clamp() from base/cxx17_backports.h instead.
//
// This function, unlike base::clamp(), does not check if `min` is greater than
// `max`, and returns a bogus answer if it is. Please migrate all code that
// calls this function to use base::clamp() instead.
//
// If, for some reason the broken behavior is required, please re-create this
// min/max nesting inline in the host code and explain with a comment why it
// is needed.
template <class T>
constexpr const T &BrokenClampThatShouldNotBeUsed(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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