e8fa13ca4e
Currently `_LIBCPP_NO_ITERATOR_BASES` controls both whether specific classes derive from `iterator` and whether `reverse_iterator` has a second member variable. These two changes are orthogonal though, and one can be applied in all langauge modes while the other change is only conforming for C++17 and later.
70 lines
2.2 KiB
C++
70 lines
2.2 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_OSTREAM_ITERATOR_H
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#define _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H
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#include <__config>
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#include <__cstddef/ptrdiff_t.h>
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#include <__fwd/ostream.h>
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#include <__fwd/string.h>
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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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#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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template <class _Tp, class _CharT = char, class _Traits = char_traits<_CharT> >
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class ostream_iterator
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: public __iterator_base<ostream_iterator<_Tp, _CharT, _Traits>, output_iterator_tag, void, void, void, void> {
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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 >= 20
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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 _CharT char_type;
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typedef _Traits traits_type;
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typedef basic_ostream<_CharT, _Traits> ostream_type;
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private:
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ostream_type* __out_stream_;
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const char_type* __delim_;
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public:
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_LIBCPP_HIDE_FROM_ABI ostream_iterator(ostream_type& __s) _NOEXCEPT
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: __out_stream_(std::addressof(__s)),
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__delim_(nullptr) {}
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_LIBCPP_HIDE_FROM_ABI ostream_iterator(ostream_type& __s, const _CharT* __delimiter) _NOEXCEPT
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: __out_stream_(std::addressof(__s)),
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__delim_(__delimiter) {}
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_LIBCPP_HIDE_FROM_ABI ostream_iterator& operator=(const _Tp& __value) {
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*__out_stream_ << __value;
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if (__delim_)
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*__out_stream_ << __delim_;
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return *this;
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}
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_LIBCPP_HIDE_FROM_ABI ostream_iterator& operator*() { return *this; }
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_LIBCPP_HIDE_FROM_ABI ostream_iterator& operator++() { return *this; }
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_LIBCPP_HIDE_FROM_ABI ostream_iterator& operator++(int) { return *this; }
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H
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