libcxx/include/__cxx03/__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 <__cxx03/__algorithm/in_out_result.h>
  13 #include <__cxx03/__algorithm/ranges_replace_copy_if.h>
  14 #include <__cxx03/__config>
  15 #include <__cxx03/__functional/identity.h>
  16 #include <__cxx03/__functional/invoke.h>
  17 #include <__cxx03/__functional/ranges_operations.h>
  18 #include <__cxx03/__iterator/concepts.h>
  19 #include <__cxx03/__iterator/projected.h>
  20 #include <__cxx03/__ranges/access.h>
  21 #include <__cxx03/__ranges/concepts.h>
  22 #include <__cxx03/__ranges/dangling.h>
  23 #include <__cxx03/__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 <__cxx03/__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 namespace __replace_copy {
  42
  43 struct __fn {
  44   template <input_iterator _InIter,
  45             sentinel_for<_InIter> _Sent,
  46             class _OldType,
  47             class _NewType,
  48             output_iterator<const _NewType&> _OutIter,
  49             class _Proj = identity>
  50     requires indirectly_copyable<_InIter, _OutIter> &&
  51              indirect_binary_predicate<ranges::equal_to, projected<_InIter, _Proj>, const _OldType*>
  52   _LIBCPP_HIDE_FROM_ABI constexpr replace_copy_result<_InIter, _OutIter>
  53   operator()(_InIter __first,
  54              _Sent __last,
  55              _OutIter __result,
  56              const _OldType& __old_value,
  57              const _NewType& __new_value,
  58              _Proj __proj = {}) const {
  59     auto __pred = [&](const auto& __value) -> bool { return __value == __old_value; };
  60     return ranges::__replace_copy_if_impl(
  61         std::move(__first), std::move(__last), std::move(__result), __pred, __new_value, __proj);
  62   }
  63
  64   template <input_range _Range,
  65             class _OldType,
  66             class _NewType,
  67             output_iterator<const _NewType&> _OutIter,
  68             class _Proj = identity>
  69     requires indirectly_copyable<iterator_t<_Range>, _OutIter> &&
  70              indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _OldType*>
  71   _LIBCPP_HIDE_FROM_ABI constexpr replace_copy_result<borrowed_iterator_t<_Range>, _OutIter> operator()(
  72       _Range&& __range, _OutIter __result, const _OldType& __old_value, const _NewType& __new_value, _Proj __proj = {})
  73       const {
  74     auto __pred = [&](const auto& __value) -> bool { return __value == __old_value; };
  75     return ranges::__replace_copy_if_impl(
  76         ranges::begin(__range), ranges::end(__range), std::move(__result), __pred, __new_value, __proj);
  77   }
  78 };
  79
  80 } // namespace __replace_copy
  81
  82 inline namespace __cpo {
  83 inline constexpr auto replace_copy = __replace_copy::__fn{};
  84 } // namespace __cpo
  85 } // namespace ranges
  86
  87 _LIBCPP_END_NAMESPACE_STD
  88
  89 #endif // _LIBCPP_STD_VER >= 20
  90
  91 _LIBCPP_POP_MACROS
  92
  93 #endif // _LIBCPP___ALGORITHM_RANGES_REPLACE_COPY_H