libcxx/include/__algorithm/ranges_replace_copy.h

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H
  10 #define _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H
  11
  12 #include <__algorithm/in_out_result.h>
  13 #include <__algorithm/ranges_replace_copy_if.h>
  14 #include <__config>
  15 #include <__functional/identity.h>
  16 #include <__functional/invoke.h>
  17 #include <__functional/ranges_operations.h>
  18 #include <__iterator/concepts.h>
  19 #include <__iterator/projected.h>
  20 #include <__ranges/access.h>
  21 #include <__ranges/concepts.h>
  22 #include <__ranges/dangling.h>
  23 #include <__utility/move.h>
  24
  25 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  26 #  pragma GCC system_header
  27 #endif
  28
  29 _LIBCPP_PUSH_MACROS
  30 #include <__undef_macros>
  31
  32 #if _LIBCPP_STD_VER >= 20
  33
  34 _LIBCPP_BEGIN_NAMESPACE_STD
  35
  36 namespace ranges {
  37
  38 template <class _InIter, class _OutIter>
  39 using replace_copy_result = in_out_result<_InIter, _OutIter>;
  40
  41 struct __replace_copy {
  42   template <input_iterator _InIter,
  43             sentinel_for<_InIter> _Sent,
  44             class _OldType,
  45             class _NewType,
  46             output_iterator<const _NewType&> _OutIter,
  47             class _Proj = identity>
  48     requires indirectly_copyable<_InIter, _OutIter> &&
  49              indirect_binary_predicate<ranges::equal_to, projected<_InIter, _Proj>, const _OldType*>
  50   _LIBCPP_HIDE_FROM_ABI constexpr replace_copy_result<_InIter, _OutIter>
  51   operator()(_InIter __first,
  52              _Sent __last,
  53              _OutIter __result,
  54              const _OldType& __old_value,
  55              const _NewType& __new_value,
  56              _Proj __proj = {}) const {
  57     auto __pred = [&](const auto& __value) -> bool { return __value == __old_value; };
  58     return ranges::__replace_copy_if_impl(
  59         std::move(__first), std::move(__last), std::move(__result), __pred, __new_value, __proj);
  60   }
  61
  62   template <input_range _Range,
  63             class _OldType,
  64             class _NewType,
  65             output_iterator<const _NewType&> _OutIter,
  66             class _Proj = identity>
  67     requires indirectly_copyable<iterator_t<_Range>, _OutIter> &&
  68              indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _OldType*>
  69   _LIBCPP_HIDE_FROM_ABI constexpr replace_copy_result<borrowed_iterator_t<_Range>, _OutIter> operator()(
  70       _Range&& __range, _OutIter __result, const _OldType& __old_value, const _NewType& __new_value, _Proj __proj = {})
  71       const {
  72     auto __pred = [&](const auto& __value) -> bool { return __value == __old_value; };
  73     return ranges::__replace_copy_if_impl(
  74         ranges::begin(__range), ranges::end(__range), std::move(__result), __pred, __new_value, __proj);
  75   }
  76 };
  77
  78 inline namespace __cpo {
  79 inline constexpr auto replace_copy = __replace_copy{};
  80 } // namespace __cpo
  81 } // namespace ranges
  82
  83 _LIBCPP_END_NAMESPACE_STD
  84
  85 #endif // _LIBCPP_STD_VER >= 20
  86
  87 _LIBCPP_POP_MACROS
  88
  89 #endif // _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H