llvm-project

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// -*- 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_IOSFWD
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#define _LIBCPP_IOSFWD
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/*
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    iosfwd synopsis
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namespace std
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{
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template<class charT> struct char_traits;
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template<>            struct char_traits<char>;
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template<>            struct char_traits<char8_t>;  // C++20
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template<>            struct char_traits<char16_t>;
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template<>            struct char_traits<char32_t>;
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template<>            struct char_traits<wchar_t>;
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template<class T>     class allocator;
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template <class charT, class traits = char_traits<charT> > class basic_ios;
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template <class charT, class traits = char_traits<charT> > class basic_streambuf;
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template <class charT, class traits = char_traits<charT> > class basic_istream;
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template <class charT, class traits = char_traits<charT> > class basic_ostream;
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template <class charT, class traits = char_traits<charT> > class basic_iostream;
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template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
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    class basic_stringbuf;
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template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
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    class basic_istringstream;
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template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
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    class basic_ostringstream;
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template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
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    class basic_stringstream;
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template <class charT, class traits = char_traits<charT> > class basic_filebuf;
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template <class charT, class traits = char_traits<charT> > class basic_ifstream;
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template <class charT, class traits = char_traits<charT> > class basic_ofstream;
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template <class charT, class traits = char_traits<charT> > class basic_fstream;
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template <class charT, class traits = char_traits<charT> > class istreambuf_iterator;
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template <class charT, class traits = char_traits<charT> > class ostreambuf_iterator;
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typedef basic_ios<char>              ios;
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typedef basic_ios<wchar_t>           wios;
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typedef basic_streambuf<char>        streambuf;
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typedef basic_istream<char>          istream;
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typedef basic_ostream<char>          ostream;
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typedef basic_iostream<char>         iostream;
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typedef basic_stringbuf<char>        stringbuf;
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typedef basic_istringstream<char>    istringstream;
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typedef basic_ostringstream<char>    ostringstream;
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typedef basic_stringstream<char>     stringstream;
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typedef basic_filebuf<char>          filebuf;
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typedef basic_ifstream<char>         ifstream;
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typedef basic_ofstream<char>         ofstream;
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typedef basic_fstream<char>          fstream;
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typedef basic_streambuf<wchar_t>     wstreambuf;
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typedef basic_istream<wchar_t>       wistream;
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typedef basic_ostream<wchar_t>       wostream;
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typedef basic_iostream<wchar_t>      wiostream;
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typedef basic_stringbuf<wchar_t>     wstringbuf;
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typedef basic_istringstream<wchar_t> wistringstream;
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typedef basic_ostringstream<wchar_t> wostringstream;
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typedef basic_stringstream<wchar_t>  wstringstream;
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typedef basic_filebuf<wchar_t>       wfilebuf;
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typedef basic_ifstream<wchar_t>      wifstream;
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typedef basic_ofstream<wchar_t>      wofstream;
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typedef basic_fstream<wchar_t>       wfstream;
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template <class state> class fpos;
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using streampos  = fpos<char_traits<char>::state_type>;
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using wstreampos = fpos<char_traits<wchar_t>::state_type>;
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using u8streampos = fpos<char_traits<char8_t>::state_type>; // C++20
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using u16streampos = fpos<char_traits<char16_t>::state_type>;
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using u32streampos = fpos<char_traits<char32_t>::state_type>;
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template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
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    class basic_syncbuf;                          // C++20
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using syncbuf = basic_syncbuf<char>;              // C++20
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using wsyncbuf = basic_syncbuf<wchar_t>;          // C++20
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template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
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    class basic_osyncstream;                      // C++20
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using osyncstream = basic_osyncstream<char>;      // C++20
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using wosyncstream = basic_osyncstream<wchar_t>;  // C++20
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}  // std
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*/
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#include <__config>
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#include <__fwd/fstream.h>
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#include <__fwd/ios.h>
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#include <__fwd/istream.h>
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#include <__fwd/memory.h>
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#include <__fwd/ostream.h>
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#include <__fwd/sstream.h>
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#include <__fwd/streambuf.h>
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#include <__fwd/string.h>
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#include <__std_mbstate_t.h>
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#include <version>
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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 _CharT, class _Traits = char_traits<_CharT> >
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class _LIBCPP_TEMPLATE_VIS istreambuf_iterator;
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template <class _CharT, class _Traits = char_traits<_CharT> >
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class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator;
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template <class _State>
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class _LIBCPP_TEMPLATE_VIS fpos;
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typedef fpos<mbstate_t> streampos;
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#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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typedef fpos<mbstate_t> wstreampos;
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#endif
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#ifndef _LIBCPP_HAS_NO_CHAR8_T
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typedef fpos<mbstate_t> u8streampos;
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#endif
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typedef fpos<mbstate_t> u16streampos;
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typedef fpos<mbstate_t> u32streampos;
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#if _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM)
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template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT>>
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class basic_syncbuf;
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using syncbuf = basic_syncbuf<char>;
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#  ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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using wsyncbuf = basic_syncbuf<wchar_t>;
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#  endif
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template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT>>
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class basic_osyncstream;
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using osyncstream = basic_osyncstream<char>;
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#  ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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using wosyncstream = basic_osyncstream<wchar_t>;
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#  endif
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#endif // _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_HAS_NO_EXPERIMENTAL_SYNCSTREAM)
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template <class _CharT, class _Traits>
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class __save_flags {
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  typedef basic_ios<_CharT, _Traits> __stream_type;
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  typedef typename __stream_type::fmtflags fmtflags;
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  __stream_type& __stream_;
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  fmtflags __fmtflags_;
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  _CharT __fill_;
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public:
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    __save_flags(const __save_flags&) = delete;
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    __save_flags& operator=(const __save_flags&) = delete;
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  _LIBCPP_HIDE_FROM_ABI explicit __save_flags(__stream_type& __stream)
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      : __stream_(__stream), __fmtflags_(__stream.flags()), __fill_(__stream.fill()) {}
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  _LIBCPP_HIDE_FROM_ABI ~__save_flags() {
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    __stream_.flags(__fmtflags_);
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    __stream_.fill(__fill_);
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  }
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_IOSFWD
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