chromium/base/ranges/functional.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_RANGES_FUNCTIONAL_H_
#define BASE_RANGES_FUNCTIONAL_H_

#include <functional>
#include <type_traits>
#include <utility>

namespace base {

namespace ranges {

// Simplified implementations of C++20's std::ranges comparison function
// objects. As opposed to the std::ranges implementation, these versions do not
// constrain the passed-in types.
//
// Reference: https://wg21.link/range.cmp
equal_to;
not_equal_to;
greater;
less;
greater_equal;
less_equal;

}  // namespace ranges

}  // namespace base

#endif  // BASE_RANGES_FUNCTIONAL_H_