1 | // -*- C++ -*- |
---|---|
2 | //===----------------------------------------------------------------------===// |
3 | // |
4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
5 | // See https://llvm.org/LICENSE.txt for license information. |
6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
7 | // |
8 | //===----------------------------------------------------------------------===// |
9 | |
10 | #ifndef _LIBCPP___ITERATOR_BACK_INSERT_ITERATOR_H |
11 | #define _LIBCPP___ITERATOR_BACK_INSERT_ITERATOR_H |
12 | |
13 | #include <__config> |
14 | #include <__iterator/iterator.h> |
15 | #include <__iterator/iterator_traits.h> |
16 | #include <__memory/addressof.h> |
17 | #include <__utility/move.h> |
18 | #include <cstddef> |
19 | |
20 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
21 | # pragma GCC system_header |
22 | #endif |
23 | |
24 | _LIBCPP_BEGIN_NAMESPACE_STD |
25 | |
26 | _LIBCPP_SUPPRESS_DEPRECATED_PUSH |
27 | template <class _Container> |
28 | class _LIBCPP_TEMPLATE_VIS back_insert_iterator |
29 | #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) |
30 | : public iterator<output_iterator_tag, void, void, void, void> |
31 | #endif |
32 | { |
33 | _LIBCPP_SUPPRESS_DEPRECATED_POP |
34 | protected: |
35 | _Container* container; |
36 | public: |
37 | typedef output_iterator_tag iterator_category; |
38 | typedef void value_type; |
39 | #if _LIBCPP_STD_VER > 17 |
40 | typedef ptrdiff_t difference_type; |
41 | #else |
42 | typedef void difference_type; |
43 | #endif |
44 | typedef void pointer; |
45 | typedef void reference; |
46 | typedef _Container container_type; |
47 | |
48 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit back_insert_iterator(_Container& __x) : container(_VSTD::addressof(__x)) {} |
49 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator=(const typename _Container::value_type& __value) |
50 | {container->push_back(__value); return *this;} |
51 | #ifndef _LIBCPP_CXX03_LANG |
52 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator=(typename _Container::value_type&& __value) |
53 | {container->push_back(_VSTD::move(__value)); return *this;} |
54 | #endif // _LIBCPP_CXX03_LANG |
55 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator*() {return *this;} |
56 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator++() {return *this;} |
57 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator operator++(int) {return *this;} |
58 | |
59 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _Container* __get_container() const { return container; } |
60 | }; |
61 | |
62 | template <class _Container> |
63 | inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 |
64 | back_insert_iterator<_Container> |
65 | back_inserter(_Container& __x) |
66 | { |
67 | return back_insert_iterator<_Container>(__x); |
68 | } |
69 | |
70 | _LIBCPP_END_NAMESPACE_STD |
71 | |
72 | #endif // _LIBCPP___ITERATOR_BACK_INSERT_ITERATOR_H |
73 |