1*4bdff4beSrobert //===----------------------------------------------------------------------===//
2*4bdff4beSrobert //
3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information.
5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*4bdff4beSrobert //
7*4bdff4beSrobert //===----------------------------------------------------------------------===//
8*4bdff4beSrobert
9*4bdff4beSrobert #ifndef _LIBCPP___ALGORITHM_RANGES_REPLACE_IF_H
10*4bdff4beSrobert #define _LIBCPP___ALGORITHM_RANGES_REPLACE_IF_H
11*4bdff4beSrobert
12*4bdff4beSrobert #include <__config>
13*4bdff4beSrobert #include <__functional/identity.h>
14*4bdff4beSrobert #include <__functional/invoke.h>
15*4bdff4beSrobert #include <__iterator/concepts.h>
16*4bdff4beSrobert #include <__iterator/projected.h>
17*4bdff4beSrobert #include <__ranges/access.h>
18*4bdff4beSrobert #include <__ranges/concepts.h>
19*4bdff4beSrobert #include <__ranges/dangling.h>
20*4bdff4beSrobert #include <__utility/move.h>
21*4bdff4beSrobert
22*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
23*4bdff4beSrobert # pragma GCC system_header
24*4bdff4beSrobert #endif
25*4bdff4beSrobert
26*4bdff4beSrobert #if _LIBCPP_STD_VER > 17
27*4bdff4beSrobert
28*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD
29*4bdff4beSrobert
30*4bdff4beSrobert namespace ranges {
31*4bdff4beSrobert
32*4bdff4beSrobert template <class _Iter, class _Sent, class _Type, class _Proj, class _Pred>
33*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr
__replace_if_impl(_Iter __first,_Sent __last,_Pred & __pred,const _Type & __new_value,_Proj & __proj)34*4bdff4beSrobert _Iter __replace_if_impl(_Iter __first, _Sent __last, _Pred& __pred, const _Type& __new_value, _Proj& __proj) {
35*4bdff4beSrobert for (; __first != __last; ++__first) {
36*4bdff4beSrobert if (std::invoke(__pred, std::invoke(__proj, *__first)))
37*4bdff4beSrobert *__first = __new_value;
38*4bdff4beSrobert }
39*4bdff4beSrobert return __first;
40*4bdff4beSrobert }
41*4bdff4beSrobert
42*4bdff4beSrobert namespace __replace_if {
43*4bdff4beSrobert struct __fn {
44*4bdff4beSrobert
45*4bdff4beSrobert template <input_iterator _Iter, sentinel_for<_Iter> _Sent,
46*4bdff4beSrobert class _Type,
47*4bdff4beSrobert class _Proj = identity,
48*4bdff4beSrobert indirect_unary_predicate<projected<_Iter, _Proj>> _Pred>
49*4bdff4beSrobert requires indirectly_writable<_Iter, const _Type&>
50*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr
operator__fn51*4bdff4beSrobert _Iter operator()(_Iter __first, _Sent __last, _Pred __pred, const _Type& __new_value, _Proj __proj = {}) const {
52*4bdff4beSrobert return ranges::__replace_if_impl(std::move(__first), std::move(__last), __pred, __new_value, __proj);
53*4bdff4beSrobert }
54*4bdff4beSrobert
55*4bdff4beSrobert template <input_range _Range,
56*4bdff4beSrobert class _Type,
57*4bdff4beSrobert class _Proj = identity,
58*4bdff4beSrobert indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred>
59*4bdff4beSrobert requires indirectly_writable<iterator_t<_Range>, const _Type&>
60*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range>
operator__fn61*4bdff4beSrobert operator()(_Range&& __range, _Pred __pred, const _Type& __new_value, _Proj __proj = {}) const {
62*4bdff4beSrobert return ranges::__replace_if_impl(ranges::begin(__range), ranges::end(__range), __pred, __new_value, __proj);
63*4bdff4beSrobert }
64*4bdff4beSrobert
65*4bdff4beSrobert };
66*4bdff4beSrobert } // namespace __replace_if
67*4bdff4beSrobert
68*4bdff4beSrobert inline namespace __cpo {
69*4bdff4beSrobert inline constexpr auto replace_if = __replace_if::__fn{};
70*4bdff4beSrobert } // namespace __cpo
71*4bdff4beSrobert } // namespace ranges
72*4bdff4beSrobert
73*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD
74*4bdff4beSrobert
75*4bdff4beSrobert #endif // _LIBCPP_STD_VER > 17
76*4bdff4beSrobert
77*4bdff4beSrobert #endif // _LIBCPP___ALGORITHM_RANGES_REPLACE_IF_H
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