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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_IOSFWD11#define _LIBCPP___CXX03_IOSFWD12 13/*14 iosfwd synopsis15 16namespace std17{18 19template<class charT> struct char_traits;20template<> struct char_traits<char>;21template<> struct char_traits<char8_t>; // C++2022template<> struct char_traits<char16_t>;23template<> struct char_traits<char32_t>;24template<> struct char_traits<wchar_t>;25 26template<class T> class allocator;27 28template <class charT, class traits = char_traits<charT> > class basic_ios;29 30template <class charT, class traits = char_traits<charT> > class basic_streambuf;31template <class charT, class traits = char_traits<charT> > class basic_istream;32template <class charT, class traits = char_traits<charT> > class basic_ostream;33template <class charT, class traits = char_traits<charT> > class basic_iostream;34 35template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >36 class basic_stringbuf;37template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >38 class basic_istringstream;39template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >40 class basic_ostringstream;41template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >42 class basic_stringstream;43 44template <class charT, class traits = char_traits<charT> > class basic_filebuf;45template <class charT, class traits = char_traits<charT> > class basic_ifstream;46template <class charT, class traits = char_traits<charT> > class basic_ofstream;47template <class charT, class traits = char_traits<charT> > class basic_fstream;48 49template <class charT, class traits = char_traits<charT> > class istreambuf_iterator;50template <class charT, class traits = char_traits<charT> > class ostreambuf_iterator;51 52typedef basic_ios<char> ios;53typedef basic_ios<wchar_t> wios;54 55typedef basic_streambuf<char> streambuf;56typedef basic_istream<char> istream;57typedef basic_ostream<char> ostream;58typedef basic_iostream<char> iostream;59 60typedef basic_stringbuf<char> stringbuf;61typedef basic_istringstream<char> istringstream;62typedef basic_ostringstream<char> ostringstream;63typedef basic_stringstream<char> stringstream;64 65typedef basic_filebuf<char> filebuf;66typedef basic_ifstream<char> ifstream;67typedef basic_ofstream<char> ofstream;68typedef basic_fstream<char> fstream;69 70typedef basic_streambuf<wchar_t> wstreambuf;71typedef basic_istream<wchar_t> wistream;72typedef basic_ostream<wchar_t> wostream;73typedef basic_iostream<wchar_t> wiostream;74 75typedef basic_stringbuf<wchar_t> wstringbuf;76typedef basic_istringstream<wchar_t> wistringstream;77typedef basic_ostringstream<wchar_t> wostringstream;78typedef basic_stringstream<wchar_t> wstringstream;79 80typedef basic_filebuf<wchar_t> wfilebuf;81typedef basic_ifstream<wchar_t> wifstream;82typedef basic_ofstream<wchar_t> wofstream;83typedef basic_fstream<wchar_t> wfstream;84 85template <class state> class fpos;86using streampos = fpos<char_traits<char>::state_type>;87using wstreampos = fpos<char_traits<wchar_t>::state_type>;88using u8streampos = fpos<char_traits<char8_t>::state_type>; // C++2089using u16streampos = fpos<char_traits<char16_t>::state_type>;90using u32streampos = fpos<char_traits<char32_t>::state_type>;91 92template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>93 class basic_syncbuf; // C++2094 95using syncbuf = basic_syncbuf<char>; // C++2096using wsyncbuf = basic_syncbuf<wchar_t>; // C++2097 98template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>99 class basic_osyncstream; // C++20100 101using osyncstream = basic_osyncstream<char>; // C++20102using wosyncstream = basic_osyncstream<wchar_t>; // C++20103 104} // std105 106*/107 108#include <__cxx03/__config>109#include <__cxx03/__fwd/fstream.h>110#include <__cxx03/__fwd/ios.h>111#include <__cxx03/__fwd/istream.h>112#include <__cxx03/__fwd/memory.h>113#include <__cxx03/__fwd/ostream.h>114#include <__cxx03/__fwd/sstream.h>115#include <__cxx03/__fwd/streambuf.h>116#include <__cxx03/__fwd/string.h>117#include <__cxx03/__std_mbstate_t.h>118#include <__cxx03/version>119 120#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)121# pragma GCC system_header122#endif123 124_LIBCPP_BEGIN_NAMESPACE_STD125 126template <class _CharT, class _Traits = char_traits<_CharT> >127class _LIBCPP_TEMPLATE_VIS istreambuf_iterator;128template <class _CharT, class _Traits = char_traits<_CharT> >129class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator;130 131template <class _State>132class _LIBCPP_TEMPLATE_VIS fpos;133typedef fpos<mbstate_t> streampos;134#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS135typedef fpos<mbstate_t> wstreampos;136#endif137#ifndef _LIBCPP_HAS_NO_CHAR8_T138typedef fpos<mbstate_t> u8streampos;139#endif140typedef fpos<mbstate_t> u16streampos;141typedef fpos<mbstate_t> u32streampos;142 143template <class _CharT, class _Traits>144class __save_flags {145 typedef basic_ios<_CharT, _Traits> __stream_type;146 typedef typename __stream_type::fmtflags fmtflags;147 148 __stream_type& __stream_;149 fmtflags __fmtflags_;150 _CharT __fill_;151 152public:153 __save_flags(const __save_flags&) = delete;154 __save_flags& operator=(const __save_flags&) = delete;155 156 _LIBCPP_HIDE_FROM_ABI explicit __save_flags(__stream_type& __stream)157 : __stream_(__stream), __fmtflags_(__stream.flags()), __fill_(__stream.fill()) {}158 _LIBCPP_HIDE_FROM_ABI ~__save_flags() {159 __stream_.flags(__fmtflags_);160 __stream_.fill(__fill_);161 }162};163 164_LIBCPP_END_NAMESPACE_STD165 166#endif // _LIBCPP___CXX03_IOSFWD167