// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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 _LIBCUDACXX___FUNCTIONAL_RANGES_OPERATIONS_H
#define _LIBCUDACXX___FUNCTIONAL_RANGES_OPERATIONS_H

#ifndef __cuda_std__
#include <__config>
#endif //__cuda_std__

#include "../__concepts/equality_comparable.h"
#include "../__concepts/totally_ordered.h"
#include "../__utility/forward.h"

#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
#  pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
#  pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
#  pragma system_header
#endif // no system header

#if _LIBCUDACXX_STD_VER > 14

_LIBCUDACXX_BEGIN_NAMESPACE_RANGES
_LIBCUDACXX_BEGIN_NAMESPACE_RANGES_ABI

struct equal_to {
  _LIBCUDACXX_TEMPLATE(class _Tp, class _Up)
    _LIBCUDACXX_REQUIRES( equality_comparable_with<_Tp, _Up>)
  _LIBCUDACXX_NODISCARD_ATTRIBUTE _LIBCUDACXX_INLINE_VISIBILITY
  constexpr bool operator()(_Tp &&__t, _Up &&__u) const
      noexcept(noexcept(bool(_CUDA_VSTD::forward<_Tp>(__t) == _CUDA_VSTD::forward<_Up>(__u)))) {
    return _CUDA_VSTD::forward<_Tp>(__t) == _CUDA_VSTD::forward<_Up>(__u);
  }

  using is_transparent = void;
};

struct not_equal_to {
  _LIBCUDACXX_TEMPLATE(class _Tp, class _Up)
    _LIBCUDACXX_REQUIRES( equality_comparable_with<_Tp, _Up>)
  _LIBCUDACXX_NODISCARD_ATTRIBUTE _LIBCUDACXX_INLINE_VISIBILITY
  constexpr bool operator()(_Tp &&__t, _Up &&__u) const
      noexcept(noexcept(bool(!(_CUDA_VSTD::forward<_Tp>(__t) == _CUDA_VSTD::forward<_Up>(__u))))) {
    return !(_CUDA_VSTD::forward<_Tp>(__t) == _CUDA_VSTD::forward<_Up>(__u));
  }

  using is_transparent = void;
};

struct less {
  _LIBCUDACXX_TEMPLATE(class _Tp, class _Up)
    _LIBCUDACXX_REQUIRES( totally_ordered_with<_Tp, _Up>)
  _LIBCUDACXX_NODISCARD_ATTRIBUTE _LIBCUDACXX_INLINE_VISIBILITY
  constexpr bool operator()(_Tp &&__t, _Up &&__u) const
      noexcept(noexcept(bool(_CUDA_VSTD::forward<_Tp>(__t) < _CUDA_VSTD::forward<_Up>(__u)))) {
    return _CUDA_VSTD::forward<_Tp>(__t) < _CUDA_VSTD::forward<_Up>(__u);
  }

  using is_transparent = void;
};

struct less_equal {
  _LIBCUDACXX_TEMPLATE(class _Tp, class _Up)
    _LIBCUDACXX_REQUIRES( totally_ordered_with<_Tp, _Up>)
  _LIBCUDACXX_NODISCARD_ATTRIBUTE _LIBCUDACXX_INLINE_VISIBILITY
  constexpr bool operator()(_Tp &&__t, _Up &&__u) const
      noexcept(noexcept(bool(!(_CUDA_VSTD::forward<_Up>(__u) < _CUDA_VSTD::forward<_Tp>(__t))))) {
    return !(_CUDA_VSTD::forward<_Up>(__u) < _CUDA_VSTD::forward<_Tp>(__t));
  }

  using is_transparent = void;
};

struct greater {
  _LIBCUDACXX_TEMPLATE(class _Tp, class _Up)
    _LIBCUDACXX_REQUIRES( totally_ordered_with<_Tp, _Up>)
  _LIBCUDACXX_NODISCARD_ATTRIBUTE _LIBCUDACXX_INLINE_VISIBILITY
  constexpr bool operator()(_Tp &&__t, _Up &&__u) const
      noexcept(noexcept(bool(_CUDA_VSTD::forward<_Up>(__u) < _CUDA_VSTD::forward<_Tp>(__t)))) {
    return _CUDA_VSTD::forward<_Up>(__u) < _CUDA_VSTD::forward<_Tp>(__t);
  }

  using is_transparent = void;
};

struct greater_equal {
  _LIBCUDACXX_TEMPLATE(class _Tp, class _Up)
    _LIBCUDACXX_REQUIRES( totally_ordered_with<_Tp, _Up>)
  _LIBCUDACXX_NODISCARD_ATTRIBUTE _LIBCUDACXX_INLINE_VISIBILITY
  constexpr bool operator()(_Tp &&__t, _Up &&__u) const
      noexcept(noexcept(bool(!(_CUDA_VSTD::forward<_Tp>(__t) < _CUDA_VSTD::forward<_Up>(__u))))) {
    return !(_CUDA_VSTD::forward<_Tp>(__t) < _CUDA_VSTD::forward<_Up>(__u));
  }

  using is_transparent = void;
};
_LIBCUDACXX_END_NAMESPACE_RANGES_ABI
_LIBCUDACXX_END_NAMESPACE_RANGES

#endif // _LIBCUDACXX_STD_VER > 14


#endif // _LIBCUDACXX___FUNCTIONAL_RANGES_OPERATIONS_H