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Diffstat (limited to 'contrib/llvm-project/libcxx/include/__algorithm/ranges_all_of.h')
-rw-r--r-- | contrib/llvm-project/libcxx/include/__algorithm/ranges_all_of.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__algorithm/ranges_all_of.h b/contrib/llvm-project/libcxx/include/__algorithm/ranges_all_of.h new file mode 100644 index 000000000000..a146865652a7 --- /dev/null +++ b/contrib/llvm-project/libcxx/include/__algorithm/ranges_all_of.h @@ -0,0 +1,68 @@ +//===----------------------------------------------------------------------===// +// +// 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_ALL_OF_H +#define _LIBCPP___ALGORITHM_RANGES_ALL_OF_H + +#include <__config> +#include <__functional/identity.h> +#include <__functional/invoke.h> +#include <__iterator/concepts.h> +#include <__iterator/projected.h> +#include <__ranges/access.h> +#include <__ranges/concepts.h> +#include <__utility/move.h> + +#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 { +namespace __all_of { +struct __fn { + + template <class _Iter, class _Sent, class _Proj, class _Pred> + _LIBCPP_HIDE_FROM_ABI constexpr static + bool __all_of_impl(_Iter __first, _Sent __last, _Pred& __pred, _Proj& __proj) { + for (; __first != __last; ++__first) { + if (!std::invoke(__pred, std::invoke(__proj, *__first))) + return false; + } + return true; + } + + template <input_iterator _Iter, sentinel_for<_Iter> _Sent, class _Proj = identity, + indirect_unary_predicate<projected<_Iter, _Proj>> _Pred> + _LIBCPP_HIDE_FROM_ABI constexpr + bool operator()(_Iter __first, _Sent __last, _Pred __pred, _Proj __proj = {}) const { + return __all_of_impl(std::move(__first), std::move(__last), __pred, __proj); + } + + template <input_range _Range, class _Proj = identity, + indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred> + _LIBCPP_HIDE_FROM_ABI constexpr + bool operator()(_Range&& __range, _Pred __pred, _Proj __proj = {}) const { + return __all_of_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj); + } +}; +} // namespace __all_of + +inline namespace __cpo { + inline constexpr auto all_of = __all_of::__fn{}; +} // namespace __cpo +} // namespace ranges + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) + +#endif // _LIBCPP___ALGORITHM_RANGES_ALL_OF_H |