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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-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___CXX03___ITERATOR_OSTREAMBUF_ITERATOR_H11#define _LIBCPP___CXX03___ITERATOR_OSTREAMBUF_ITERATOR_H12 13#include <__cxx03/__config>14#include <__cxx03/__iterator/iterator.h>15#include <__cxx03/__iterator/iterator_traits.h>16#include <__cxx03/cstddef>17#include <__cxx03/iosfwd> // for forward declaration of basic_streambuf18 19#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)20# pragma GCC system_header21#endif22 23_LIBCPP_BEGIN_NAMESPACE_STD24 25_LIBCPP_SUPPRESS_DEPRECATED_PUSH26template <class _CharT, class _Traits>27class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator : public iterator<output_iterator_tag, void, void, void, void> {28 _LIBCPP_SUPPRESS_DEPRECATED_POP29 30public:31 typedef output_iterator_tag iterator_category;32 typedef void value_type;33 typedef void difference_type;34 typedef void pointer;35 typedef void reference;36 typedef _CharT char_type;37 typedef _Traits traits_type;38 typedef basic_streambuf<_CharT, _Traits> streambuf_type;39 typedef basic_ostream<_CharT, _Traits> ostream_type;40 41private:42 streambuf_type* __sbuf_;43 44public:45 _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator(ostream_type& __s) _NOEXCEPT : __sbuf_(__s.rdbuf()) {}46 _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator(streambuf_type* __s) _NOEXCEPT : __sbuf_(__s) {}47 _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator& operator=(_CharT __c) {48 if (__sbuf_ && traits_type::eq_int_type(__sbuf_->sputc(__c), traits_type::eof()))49 __sbuf_ = nullptr;50 return *this;51 }52 _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator& operator*() { return *this; }53 _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator& operator++() { return *this; }54 _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator& operator++(int) { return *this; }55 _LIBCPP_HIDE_FROM_ABI bool failed() const _NOEXCEPT { return __sbuf_ == nullptr; }56 57 template <class _Ch, class _Tr>58 friend _LIBCPP_HIDE_FROM_ABI ostreambuf_iterator<_Ch, _Tr> __pad_and_output(59 ostreambuf_iterator<_Ch, _Tr> __s, const _Ch* __ob, const _Ch* __op, const _Ch* __oe, ios_base& __iob, _Ch __fl);60};61 62_LIBCPP_END_NAMESPACE_STD63 64#endif // _LIBCPP___CXX03___ITERATOR_OSTREAMBUF_ITERATOR_H65