78 lines
2.9 KiB
C++
78 lines
2.9 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_OSTREAMBUF_ITERATOR_H
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#define _LIBCPP___ITERATOR_OSTREAMBUF_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 <cstddef>
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#include <iosfwd> // for forward declaration of basic_streambuf
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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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_LIBCPP_SUPPRESS_DEPRECATED_PUSH
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template <class _CharT, class _Traits>
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class _LIBCPP_TEMPLATE_VIS ostreambuf_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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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 _CharT char_type;
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typedef _Traits traits_type;
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typedef basic_streambuf<_CharT, _Traits> streambuf_type;
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typedef basic_ostream<_CharT, _Traits> ostream_type;
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private:
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streambuf_type* __sbuf_;
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public:
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_LIBCPP_INLINE_VISIBILITY ostreambuf_iterator(ostream_type& __s) _NOEXCEPT
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: __sbuf_(__s.rdbuf()) {}
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_LIBCPP_INLINE_VISIBILITY ostreambuf_iterator(streambuf_type* __s) _NOEXCEPT
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: __sbuf_(__s) {}
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_LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator=(_CharT __c)
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{
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if (__sbuf_ && traits_type::eq_int_type(__sbuf_->sputc(__c), traits_type::eof()))
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__sbuf_ = nullptr;
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return *this;
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}
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_LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator*() {return *this;}
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_LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator++() {return *this;}
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_LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator++(int) {return *this;}
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_LIBCPP_INLINE_VISIBILITY bool failed() const _NOEXCEPT {return __sbuf_ == nullptr;}
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template <class _Ch, class _Tr>
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friend
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_LIBCPP_HIDDEN
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ostreambuf_iterator<_Ch, _Tr>
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__pad_and_output(ostreambuf_iterator<_Ch, _Tr> __s,
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const _Ch* __ob, const _Ch* __op, const _Ch* __oe,
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ios_base& __iob, _Ch __fl);
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ITERATOR_OSTREAMBUF_ITERATOR_H
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