v1/__algorithm/ranges_replace_copy.h

0001 //===----------------------------------------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H
0010 #define _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H
0011
0012 #include <__algorithm/in_out_result.h>
0013 #include <__algorithm/ranges_replace_copy_if.h>
0014 #include <__config>
0015 #include <__functional/identity.h>
0016 #include <__functional/invoke.h>
0017 #include <__functional/ranges_operations.h>
0018 #include <__iterator/concepts.h>
0019 #include <__iterator/projected.h>
0020 #include <__ranges/access.h>
0021 #include <__ranges/concepts.h>
0022 #include <__ranges/dangling.h>
0023 #include <__utility/move.h>
0024
0025 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0026 #  pragma GCC system_header
0027 #endif
0028
0029 _LIBCPP_PUSH_MACROS
0030 #include <__undef_macros>
0031
0032 #if _LIBCPP_STD_VER >= 20
0033
0034 _LIBCPP_BEGIN_NAMESPACE_STD
0035
0036 namespace ranges {
0037
0038 template <class _InIter, class _OutIter>
0039 using replace_copy_result = in_out_result<_InIter, _OutIter>;
0040
0041 struct __replace_copy {
0042   template <input_iterator _InIter,
0043             sentinel_for<_InIter> _Sent,
0044             class _OldType,
0045             class _NewType,
0046             output_iterator<const _NewType&> _OutIter,
0047             class _Proj = identity>
0048     requires indirectly_copyable<_InIter, _OutIter> &&
0049              indirect_binary_predicate<ranges::equal_to, projected<_InIter, _Proj>, const _OldType*>
0050   _LIBCPP_HIDE_FROM_ABI constexpr replace_copy_result<_InIter, _OutIter>
0051   operator()(_InIter __first,
0052              _Sent __last,
0053              _OutIter __result,
0054              const _OldType& __old_value,
0055              const _NewType& __new_value,
0056              _Proj __proj = {}) const {
0057     auto __pred = [&](const auto& __value) -> bool { return __value == __old_value; };
0058     return ranges::__replace_copy_if_impl(
0059         std::move(__first), std::move(__last), std::move(__result), __pred, __new_value, __proj);
0060   }
0061
0062   template <input_range _Range,
0063             class _OldType,
0064             class _NewType,
0065             output_iterator<const _NewType&> _OutIter,
0066             class _Proj = identity>
0067     requires indirectly_copyable<iterator_t<_Range>, _OutIter> &&
0068              indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _OldType*>
0069   _LIBCPP_HIDE_FROM_ABI constexpr replace_copy_result<borrowed_iterator_t<_Range>, _OutIter> operator()(
0070       _Range&& __range, _OutIter __result, const _OldType& __old_value, const _NewType& __new_value, _Proj __proj = {})
0071       const {
0072     auto __pred = [&](const auto& __value) -> bool { return __value == __old_value; };
0073     return ranges::__replace_copy_if_impl(
0074         ranges::begin(__range), ranges::end(__range), std::move(__result), __pred, __new_value, __proj);
0075   }
0076 };
0077
0078 inline namespace __cpo {
0079 inline constexpr auto replace_copy = __replace_copy{};
0080 } // namespace __cpo
0081 } // namespace ranges
0082
0083 _LIBCPP_END_NAMESPACE_STD
0084
0085 #endif // _LIBCPP_STD_VER >= 20
0086
0087 _LIBCPP_POP_MACROS
0088
0089 #endif // _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H