chromium/third_party/libc++/src/include/__compare/common_comparison_category.h

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP___COMPARE_COMMON_COMPARISON_CATEGORY_H
#define _LIBCPP___COMPARE_COMMON_COMPARISON_CATEGORY_H

#include <__compare/ordering.h>
#include <__config>
#include <__type_traits/is_same.h>
#include <cstddef>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

#if _LIBCPP_STD_VER >= 20

namespace __comp_detail {

enum _ClassifyCompCategory : unsigned { … };

template <class _Tp>
_LIBCPP_HIDE_FROM_ABI constexpr _ClassifyCompCategory __type_to_enum() noexcept { … }

template <size_t _Size>
_LIBCPP_HIDE_FROM_ABI constexpr _ClassifyCompCategory
__compute_comp_type(const _ClassifyCompCategory (&__types)[_Size]) { … }

template <class... _Ts, bool _False = false>
_LIBCPP_HIDE_FROM_ABI constexpr auto __get_comp_type() { … }
} // namespace __comp_detail

// [cmp.common], common comparison category type
template <class... _Ts>
struct _LIBCPP_TEMPLATE_VIS common_comparison_category { … };

common_comparison_category_t;

#endif // _LIBCPP_STD_VER >= 20

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___COMPARE_COMMON_COMPARISON_CATEGORY_H