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 struct __replace { 36 template <input_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type1, class _Type2, class _Proj = identity> 37 requires indirectly_writable<_Iter, const _Type2&> && 38 indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type1*> 39 _LIBCPP_HIDE_FROM_ABI constexpr _Iter operator()( 40 _Iter __first, _Sent __last, const _Type1& __old_value, const _Type2& __new_value, _Proj __proj = {}) const { 41 auto __pred = [&](const auto& __val) -> bool { return __val == __old_value; }; 42 return ranges::__replace_if_impl(std::move(__first), std::move(__last), __pred, __new_value, __proj); 43 } 44 45 template <input_range _Range, class _Type1, class _Type2, class _Proj = identity> 46 requires indirectly_writable<iterator_t<_Range>, const _Type2&> && 47 indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type1*> 48 _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range> 49 operator()(_Range&& __range, const _Type1& __old_value, const _Type2& __new_value, _Proj __proj = {}) const { 50 auto __pred = [&](auto&& __val) -> bool { return __val == __old_value; }; 51 return ranges::__replace_if_impl(ranges::begin(__range), ranges::end(__range), __pred, __new_value, __proj); 52 } 53 }; 54 55 inline namespace __cpo { 56 inline constexpr auto replace = __replace{}; 57 } // namespace __cpo 58 } // namespace ranges 59 60 _LIBCPP_END_NAMESPACE_STD 61 62 #endif // _LIBCPP_STD_VER >= 20 63 64 _LIBCPP_POP_MACROS 65 66 #endif // _LIBCPP___ALGORITHM_RANGES_REPLACE_H 67