1fe6060f1SDimitry Andric // -*- C++ -*-
2fe6060f1SDimitry Andric //===----------------------------------------------------------------------===//
3fe6060f1SDimitry Andric //
4fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
6fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7fe6060f1SDimitry Andric //
8fe6060f1SDimitry Andric //===----------------------------------------------------------------------===//
9fe6060f1SDimitry Andric
10fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_FOR_EACH_H
11fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_FOR_EACH_H
12fe6060f1SDimitry Andric
13*5f757f3fSDimitry Andric #include <__algorithm/for_each_segment.h>
14fe6060f1SDimitry Andric #include <__config>
15*5f757f3fSDimitry Andric #include <__iterator/segmented_iterator.h>
16*5f757f3fSDimitry Andric #include <__ranges/movable_box.h>
17*5f757f3fSDimitry Andric #include <__type_traits/enable_if.h>
18*5f757f3fSDimitry Andric #include <__utility/in_place.h>
19*5f757f3fSDimitry Andric #include <__utility/move.h>
20fe6060f1SDimitry Andric
21fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
22fe6060f1SDimitry Andric # pragma GCC system_header
23fe6060f1SDimitry Andric #endif
24fe6060f1SDimitry Andric
25*5f757f3fSDimitry Andric _LIBCPP_PUSH_MACROS
26*5f757f3fSDimitry Andric #include <__undef_macros>
27*5f757f3fSDimitry Andric
28fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD
29fe6060f1SDimitry Andric
30fe6060f1SDimitry Andric template <class _InputIterator, class _Function>
31*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Function
for_each(_InputIterator __first,_InputIterator __last,_Function __f)32*5f757f3fSDimitry Andric for_each(_InputIterator __first, _InputIterator __last, _Function __f) {
33fe6060f1SDimitry Andric for (; __first != __last; ++__first)
34fe6060f1SDimitry Andric __f(*__first);
35fe6060f1SDimitry Andric return __f;
36fe6060f1SDimitry Andric }
37fe6060f1SDimitry Andric
38*5f757f3fSDimitry Andric // __movable_box is available in C++20, but is actually a copyable-box, so optimization is only correct in C++23
39*5f757f3fSDimitry Andric #if _LIBCPP_STD_VER >= 23
40*5f757f3fSDimitry Andric template <class _SegmentedIterator, class _Function>
41*5f757f3fSDimitry Andric requires __is_segmented_iterator<_SegmentedIterator>::value
42*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr _Function
for_each(_SegmentedIterator __first,_SegmentedIterator __last,_Function __func)43*5f757f3fSDimitry Andric for_each(_SegmentedIterator __first, _SegmentedIterator __last, _Function __func) {
44*5f757f3fSDimitry Andric ranges::__movable_box<_Function> __wrapped_func(in_place, std::move(__func));
45*5f757f3fSDimitry Andric std::__for_each_segment(__first, __last, [&](auto __lfirst, auto __llast) {
46*5f757f3fSDimitry Andric __wrapped_func =
47*5f757f3fSDimitry Andric ranges::__movable_box<_Function>(in_place, std::for_each(__lfirst, __llast, std::move(*__wrapped_func)));
48*5f757f3fSDimitry Andric });
49*5f757f3fSDimitry Andric return std::move(*__wrapped_func);
50*5f757f3fSDimitry Andric }
51*5f757f3fSDimitry Andric #endif // _LIBCPP_STD_VER >= 23
52*5f757f3fSDimitry Andric
53fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD
54fe6060f1SDimitry Andric
55*5f757f3fSDimitry Andric _LIBCPP_POP_MACROS
56*5f757f3fSDimitry Andric
57fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_FOR_EACH_H
58