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_H 10 #define _LIBCPP___ALGORITHM_RANGES_REPLACE_H 11 12 #include <__algorithm/ranges_replace_if.h> 13 #include <__config> 14 #include <__functional/identity.h> 15 #include <__functional/ranges_operations.h> 16 #include <__iterator/concepts.h> 17 #include <__iterator/projected.h> 18 #include <__ranges/access.h> 19 #include <__ranges/concepts.h> 20 #include <__ranges/dangling.h> 21 #include <__utility/move.h> 22 23 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 24 # pragma GCC system_header 25 #endif 26 27 _LIBCPP_PUSH_MACROS 28 #include <__undef_macros> 29 30 #if _LIBCPP_STD_VER >= 20 31 32 _LIBCPP_BEGIN_NAMESPACE_STD 33 34 namespace ranges { 35 namespace __replace { 36 struct __fn { 37 template <input_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type1, class _Type2, class _Proj = identity> 38 requires indirectly_writable<_Iter, const _Type2&> && 39 indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type1*> 40 _LIBCPP_HIDE_FROM_ABI constexpr _Iter operator()( 41 _Iter __first, _Sent __last, const _Type1& __old_value, const _Type2& __new_value, _Proj __proj = {}) const { 42 auto __pred = [&](const auto& __val) -> bool { return __val == __old_value; }; 43 return ranges::__replace_if_impl(std::move(__first), std::move(__last), __pred, __new_value, __proj); 44 } 45 46 template <input_range _Range, class _Type1, class _Type2, class _Proj = identity> 47 requires indirectly_writable<iterator_t<_Range>, const _Type2&> && 48 indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type1*> 49 _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range> 50 operator()(_Range&& __range, const _Type1& __old_value, const _Type2& __new_value, _Proj __proj = {}) const { 51 auto __pred = [&](auto&& __val) -> bool { return __val == __old_value; }; 52 return ranges::__replace_if_impl(ranges::begin(__range), ranges::end(__range), __pred, __new_value, __proj); 53 } 54 }; 55 } // namespace __replace 56 57 inline namespace __cpo { 58 inline constexpr auto replace = __replace::__fn{}; 59 } // namespace __cpo 60 } // namespace ranges 61 62 _LIBCPP_END_NAMESPACE_STD 63 64 #endif // _LIBCPP_STD_VER >= 20 65 66 _LIBCPP_POP_MACROS 67 68 #endif // _LIBCPP___ALGORITHM_RANGES_REPLACE_H 69