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Diffstat (limited to 'contrib/llvm-project/libcxx/include/__algorithm/ranges_minmax_element.h')
-rw-r--r-- | contrib/llvm-project/libcxx/include/__algorithm/ranges_minmax_element.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__algorithm/ranges_minmax_element.h b/contrib/llvm-project/libcxx/include/__algorithm/ranges_minmax_element.h new file mode 100644 index 000000000000..b7bb26cefe95 --- /dev/null +++ b/contrib/llvm-project/libcxx/include/__algorithm/ranges_minmax_element.h @@ -0,0 +1,72 @@ +//===----------------------------------------------------------------------===// +// +// 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___ALGORITHM_RANGES_MINMAX_ELEMENT_H +#define _LIBCPP___ALGORITHM_RANGES_MINMAX_ELEMENT_H + +#include <__algorithm/min_max_result.h> +#include <__algorithm/minmax_element.h> +#include <__config> +#include <__functional/identity.h> +#include <__functional/invoke.h> +#include <__functional/ranges_operations.h> +#include <__iterator/concepts.h> +#include <__iterator/projected.h> +#include <__ranges/access.h> +#include <__ranges/concepts.h> +#include <__ranges/dangling.h> +#include <__utility/forward.h> +#include <__utility/move.h> +#include <__utility/pair.h> +#include <type_traits> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# pragma GCC system_header +#endif + +#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) + +_LIBCPP_BEGIN_NAMESPACE_STD + +namespace ranges { + +template <class _T1> +using minmax_element_result = min_max_result<_T1>; + +namespace __minmax_element { +struct __fn { + template <forward_iterator _Ip, sentinel_for<_Ip> _Sp, class _Proj = identity, + indirect_strict_weak_order<projected<_Ip, _Proj>> _Comp = ranges::less> + _LIBCPP_HIDE_FROM_ABI constexpr + ranges::minmax_element_result<_Ip> operator()(_Ip __first, _Sp __last, _Comp __comp = {}, _Proj __proj = {}) const { + auto __ret = std::__minmax_element_impl(std::move(__first), std::move(__last), __comp, __proj); + return {__ret.first, __ret.second}; + } + + template <forward_range _Rp, class _Proj = identity, + indirect_strict_weak_order<projected<iterator_t<_Rp>, _Proj>> _Comp = ranges::less> + _LIBCPP_HIDE_FROM_ABI constexpr + ranges::minmax_element_result<borrowed_iterator_t<_Rp>> + operator()(_Rp&& __r, _Comp __comp = {}, _Proj __proj = {}) const { + auto __ret = std::__minmax_element_impl(ranges::begin(__r), ranges::end(__r), __comp, __proj); + return {__ret.first, __ret.second}; + } +}; +} // namespace __minmax_element + +inline namespace __cpo { + inline constexpr auto minmax_element = __minmax_element::__fn{}; +} // namespace __cpo + +} // namespace ranges + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) + +#endif // _LIBCPP___ALGORITHM_RANGES_MINMAX_H |