53406fb691
The logic here is that we are disabling *only* things in `std::ranges::`. Everything in `std::` is permitted, including `default_sentinel`, `contiguous_iterator`, `common_iterator`, `projected`, `swappable`, and so on. Then, we include anything from `std::ranges::` that is required in order to make those things work: `ranges::swap`, `ranges::swap_ranges`, `input_range`, `ranges::begin`, `ranges::iter_move`, and so on. But then that's all. Everything else (including notably all of the "views" and the `std::views` namespace itself) is still locked up behind `_LIBCPP_HAS_NO_INCOMPLETE_RANGES`. Differential Revision: https://reviews.llvm.org/D118736
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ITERATOR_INSERT_ITERATOR_H
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#define _LIBCPP___ITERATOR_INSERT_ITERATOR_H
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#include <__config>
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#include <__iterator/iterator.h>
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#include <__iterator/iterator_traits.h>
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#include <__memory/addressof.h>
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#include <__ranges/access.h>
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#include <__utility/move.h>
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#include <cstddef>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
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template <class _Container>
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using __insert_iterator_iter_t = ranges::iterator_t<_Container>;
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#else
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template <class _Container>
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using __insert_iterator_iter_t = typename _Container::iterator;
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#endif
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_LIBCPP_SUPPRESS_DEPRECATED_PUSH
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template <class _Container>
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class _LIBCPP_TEMPLATE_VIS insert_iterator
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#if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES)
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: public iterator<output_iterator_tag, void, void, void, void>
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#endif
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{
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_LIBCPP_SUPPRESS_DEPRECATED_POP
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protected:
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_Container* container;
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__insert_iterator_iter_t<_Container> iter;
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public:
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typedef output_iterator_tag iterator_category;
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typedef void value_type;
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#if _LIBCPP_STD_VER > 17
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typedef ptrdiff_t difference_type;
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#else
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typedef void difference_type;
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#endif
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typedef void pointer;
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typedef void reference;
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typedef _Container container_type;
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator(_Container& __x, __insert_iterator_iter_t<_Container> __i)
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: container(_VSTD::addressof(__x)), iter(__i) {}
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator=(const typename _Container::value_type& __value_)
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{iter = container->insert(iter, __value_); ++iter; return *this;}
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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator=(typename _Container::value_type&& __value_)
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{iter = container->insert(iter, _VSTD::move(__value_)); ++iter; return *this;}
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#endif // _LIBCPP_CXX03_LANG
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator*() {return *this;}
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator++() {return *this;}
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator++(int) {return *this;}
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};
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template <class _Container>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
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insert_iterator<_Container>
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inserter(_Container& __x, __insert_iterator_iter_t<_Container> __i)
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{
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return insert_iterator<_Container>(__x, __i);
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ITERATOR_INSERT_ITERATOR_H
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