forked from OSchip/llvm-project
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___FUNCTIONAL_RANGES_OPERATIONS_H
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#define _LIBCPP___FUNCTIONAL_RANGES_OPERATIONS_H
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#include <__config>
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#include <__utility/forward.h>
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#include <concepts>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER > 17
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namespace ranges {
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struct equal_to {
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template <class _Tp, class _Up>
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requires equality_comparable_with<_Tp, _Up>
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[[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const
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noexcept(noexcept(bool(_VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u)))) {
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return _VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u);
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}
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using is_transparent = void;
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};
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struct not_equal_to {
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template <class _Tp, class _Up>
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requires equality_comparable_with<_Tp, _Up>
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[[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const
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noexcept(noexcept(bool(!(_VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u))))) {
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return !(_VSTD::forward<_Tp>(__t) == _VSTD::forward<_Up>(__u));
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}
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using is_transparent = void;
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};
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struct less {
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template <class _Tp, class _Up>
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requires totally_ordered_with<_Tp, _Up>
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[[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const
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noexcept(noexcept(bool(_VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u)))) {
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return _VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u);
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}
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using is_transparent = void;
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};
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struct less_equal {
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template <class _Tp, class _Up>
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requires totally_ordered_with<_Tp, _Up>
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[[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const
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noexcept(noexcept(bool(!(_VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t))))) {
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return !(_VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t));
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}
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using is_transparent = void;
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};
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struct greater {
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template <class _Tp, class _Up>
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requires totally_ordered_with<_Tp, _Up>
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[[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const
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noexcept(noexcept(bool(_VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t)))) {
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return _VSTD::forward<_Up>(__u) < _VSTD::forward<_Tp>(__t);
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}
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using is_transparent = void;
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};
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struct greater_equal {
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template <class _Tp, class _Up>
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requires totally_ordered_with<_Tp, _Up>
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[[nodiscard]] constexpr bool operator()(_Tp &&__t, _Up &&__u) const
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noexcept(noexcept(bool(!(_VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u))))) {
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return !(_VSTD::forward<_Tp>(__t) < _VSTD::forward<_Up>(__u));
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}
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using is_transparent = void;
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};
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} // namespace ranges
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#endif // _LIBCPP_STD_VER > 17
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___FUNCTIONAL_RANGES_OPERATIONS_H
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