[gcc] GCC 4.5.0=>4.5.1

gcc/libstdc++-v3/include/std/fstream

Index: gcc/libstdc++-v3/include/std/fstream
diff --git a/gcc/libstdc++-v3/include/std/fstream b/gcc/libstdc++-v3/include/std/fstream
deleted file mode 100644
index 88c1d14882559139e840a5e261ee1fadef8a2ac6..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/include/std/fstream
+++ /dev/null
@@ -1,918 +0,0 @@
-// File based streams -*- C++ -*-
-
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2006, 2007, 2008, 2009
-// Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// Under Section 7 of GPL version 3, you are granted additional
-// permissions described in the GCC Runtime Library Exception, version
-// 3.1, as published by the Free Software Foundation.
-
-// You should have received a copy of the GNU General Public License and
-// a copy of the GCC Runtime Library Exception along with this program;
-// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-// <http://www.gnu.org/licenses/>.
-
-/** @file fstream
- *  This is a Standard C++ Library header.
- */
-
-//
-// ISO C++ 14882: 27.8  File-based streams
-//
-
-#ifndef _GLIBCXX_FSTREAM
-#define _GLIBCXX_FSTREAM 1
-
-#pragma GCC system_header
-
-#include <istream>
-#include <ostream>
-#include <bits/codecvt.h>
-#include <cstdio>             // For BUFSIZ
-#include <bits/basic_file.h>  // For __basic_file, __c_lock
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-#include <string>             // For std::string overloads.
-#endif
-
-_GLIBCXX_BEGIN_NAMESPACE(std)
-
-  // [27.8.1.1] template class basic_filebuf
-  /**
-   *  @brief  The actual work of input and output (for files).
-   *  @ingroup io
-   *
-   *  This class associates both its input and output sequence with an
-   *  external disk file, and maintains a joint file position for both
-   *  sequences.  Many of its semantics are described in terms of similar
-   *  behavior in the Standard C Library's @c FILE streams.
-   */
-  // Requirements on traits_type, specific to this class:
-  // traits_type::pos_type must be fpos<traits_type::state_type>
-  // traits_type::off_type must be streamoff
-  // traits_type::state_type must be Assignable and DefaultConstructible,
-  // and traits_type::state_type() must be the initial state for codecvt.
-  template<typename _CharT, typename _Traits>
-    class basic_filebuf : public basic_streambuf<_CharT, _Traits>
-    {
-    public:
-      // Types:
-      typedef _CharT                     	        char_type;
-      typedef _Traits                    	        traits_type;
-      typedef typename traits_type::int_type 		int_type;
-      typedef typename traits_type::pos_type 		pos_type;
-      typedef typename traits_type::off_type 		off_type;
-
-      typedef basic_streambuf<char_type, traits_type>  	__streambuf_type;
-      typedef basic_filebuf<char_type, traits_type>     __filebuf_type;
-      typedef __basic_file<char>		        __file_type;
-      typedef typename traits_type::state_type          __state_type;
-      typedef codecvt<char_type, char, __state_type>    __codecvt_type;
-
-      friend class ios_base; // For sync_with_stdio.
-
-    protected:
-      // Data Members:
-      // MT lock inherited from libio or other low-level io library.
-      __c_lock          	_M_lock;
-
-      // External buffer.
-      __file_type 		_M_file;
-
-      /// Place to stash in || out || in | out settings for current filebuf.
-      ios_base::openmode 	_M_mode;
-
-      // Beginning state type for codecvt.
-      __state_type 		_M_state_beg;
-
-      // During output, the state that corresponds to pptr(),
-      // during input, the state that corresponds to egptr() and
-      // _M_ext_next.
-      __state_type		_M_state_cur;
-
-      // Not used for output. During input, the state that corresponds
-      // to eback() and _M_ext_buf.
-      __state_type		_M_state_last;
-
-      /// Pointer to the beginning of internal buffer.
-      char_type*		_M_buf; 	
-
-      /**
-       *  Actual size of internal buffer. This number is equal to the size
-       *  of the put area + 1 position, reserved for the overflow char of
-       *  a full area.
-       */
-      size_t			_M_buf_size;
-
-      // Set iff _M_buf is allocated memory from _M_allocate_internal_buffer.
-      bool			_M_buf_allocated;
-
-      /**
-       *  _M_reading == false && _M_writing == false for 'uncommitted' mode;
-       *  _M_reading == true for 'read' mode;
-       *  _M_writing == true for 'write' mode;
-       *
-       *  NB: _M_reading == true && _M_writing == true is unused.
-       */
-      bool                      _M_reading;
-      bool                      _M_writing;
-
-      //@{
-      /**
-       *  Necessary bits for putback buffer management.
-       *
-       *  @note pbacks of over one character are not currently supported.
-       */
-      char_type			_M_pback;
-      char_type*		_M_pback_cur_save;
-      char_type*		_M_pback_end_save;
-      bool			_M_pback_init;
-      //@}
-
-      // Cached codecvt facet.
-      const __codecvt_type* 	_M_codecvt;
-
-      /**
-       *  Buffer for external characters. Used for input when
-       *  codecvt::always_noconv() == false. When valid, this corresponds
-       *  to eback().
-       */
-      char*			_M_ext_buf;
-
-      /**
-       *  Size of buffer held by _M_ext_buf.
-       */
-      streamsize		_M_ext_buf_size;
-
-      /**
-       *  Pointers into the buffer held by _M_ext_buf that delimit a
-       *  subsequence of bytes that have been read but not yet converted.
-       *  When valid, _M_ext_next corresponds to egptr().
-       */
-      const char*		_M_ext_next;
-      char*			_M_ext_end;
-
-      /**
-       *  Initializes pback buffers, and moves normal buffers to safety.
-       *  Assumptions:
-       *  _M_in_cur has already been moved back
-       */
-      void
-      _M_create_pback()
-      {
-	if (!_M_pback_init)
-	  {
-	    _M_pback_cur_save = this->gptr();
-	    _M_pback_end_save = this->egptr();
-	    this->setg(&_M_pback, &_M_pback, &_M_pback + 1);
-	    _M_pback_init = true;
-	  }
-      }
-
-      /**
-       *  Deactivates pback buffer contents, and restores normal buffer.
-       *  Assumptions:
-       *  The pback buffer has only moved forward.
-       */
-      void
-      _M_destroy_pback() throw()
-      {
-	if (_M_pback_init)
-	  {
-	    // Length _M_in_cur moved in the pback buffer.
-	    _M_pback_cur_save += this->gptr() != this->eback();
-	    this->setg(_M_buf, _M_pback_cur_save, _M_pback_end_save);
-	    _M_pback_init = false;
-	  }
-      }
-
-    public:
-      // Constructors/destructor:
-      /**
-       *  @brief  Does not open any files.
-       *
-       *  The default constructor initializes the parent class using its
-       *  own default ctor.
-       */
-      basic_filebuf();
-
-      /**
-       *  @brief  The destructor closes the file first.
-       */
-      virtual
-      ~basic_filebuf()
-      { this->close(); }
-
-      // Members:
-      /**
-       *  @brief  Returns true if the external file is open.
-       */
-      bool
-      is_open() const throw()
-      { return _M_file.is_open(); }
-
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *  @return  @c this on success, NULL on failure
-       *
-       *  If a file is already open, this function immediately fails.
-       *  Otherwise it tries to open the file named @a s using the flags
-       *  given in @a mode.
-       *
-       *  Table 92, adapted here, gives the relation between openmode
-       *  combinations and the equivalent fopen() flags.
-       *  (NB: lines app, in|out|app, in|app, binary|app, binary|in|out|app,
-       *  and binary|in|app per DR 596)
-       *  +---------------------------------------------------------+
-       *  | ios_base Flag combination            stdio equivalent   |
-       *  |binary  in  out  trunc  app                              |
-       *  +---------------------------------------------------------+
-       *  |             +                        "w"                |
-       *  |             +           +            "a"                |
-       *  |                         +            "a"                |
-       *  |             +     +                  "w"                |
-       *  |         +                            "r"                |
-       *  |         +   +                        "r+"               |
-       *  |         +   +     +                  "w+"               |
-       *  |         +   +           +            "a+"               |
-       *  |         +               +            "a+"               |
-       *  +---------------------------------------------------------+
-       *  |   +         +                        "wb"               |
-       *  |   +         +           +            "ab"               |
-       *  |   +                     +            "ab"               |
-       *  |   +         +     +                  "wb"               |
-       *  |   +     +                            "rb"               |
-       *  |   +     +   +                        "r+b"              |
-       *  |   +     +   +     +                  "w+b"              |
-       *  |   +     +   +           +            "a+b"              |
-       *  |   +     +               +            "a+b"              |
-       *  +---------------------------------------------------------+
-       */
-      __filebuf_type*
-      open(const char* __s, ios_base::openmode __mode);
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *  @return  @c this on success, NULL on failure
-       */
-      __filebuf_type*
-      open(const std::string& __s, ios_base::openmode __mode)
-      { return open(__s.c_str(), __mode); }
-#endif
-
-      /**
-       *  @brief  Closes the currently associated file.
-       *  @return  @c this on success, NULL on failure
-       *
-       *  If no file is currently open, this function immediately fails.
-       *
-       *  If a "put buffer area" exists, @c overflow(eof) is called to flush
-       *  all the characters.  The file is then closed.
-       *
-       *  If any operations fail, this function also fails.
-       */
-      __filebuf_type*
-      close();
-
-    protected:
-      void
-      _M_allocate_internal_buffer();
-
-      void
-      _M_destroy_internal_buffer() throw();
-
-      // [27.8.1.4] overridden virtual functions
-      virtual streamsize
-      showmanyc();
-
-      // Stroustrup, 1998, p. 628
-      // underflow() and uflow() functions are called to get the next
-      // character from the real input source when the buffer is empty.
-      // Buffered input uses underflow()
-
-      virtual int_type
-      underflow();
-
-      virtual int_type
-      pbackfail(int_type __c = _Traits::eof());
-
-      // Stroustrup, 1998, p 648
-      // The overflow() function is called to transfer characters to the
-      // real output destination when the buffer is full. A call to
-      // overflow(c) outputs the contents of the buffer plus the
-      // character c.
-      // 27.5.2.4.5
-      // Consume some sequence of the characters in the pending sequence.
-      virtual int_type
-      overflow(int_type __c = _Traits::eof());
-
-      // Convert internal byte sequence to external, char-based
-      // sequence via codecvt.
-      bool
-      _M_convert_to_external(char_type*, streamsize);
-
-      /**
-       *  @brief  Manipulates the buffer.
-       *  @param  s  Pointer to a buffer area.
-       *  @param  n  Size of @a s.
-       *  @return  @c this
-       *
-       *  If no file has been opened, and both @a s and @a n are zero, then
-       *  the stream becomes unbuffered.  Otherwise, @c s is used as a
-       *  buffer; see
-       *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch25s02.html
-       *  for more.
-       */
-      virtual __streambuf_type*
-      setbuf(char_type* __s, streamsize __n);
-
-      virtual pos_type
-      seekoff(off_type __off, ios_base::seekdir __way,
-	      ios_base::openmode __mode = ios_base::in | ios_base::out);
-
-      virtual pos_type
-      seekpos(pos_type __pos,
-	      ios_base::openmode __mode = ios_base::in | ios_base::out);
-
-      // Common code for seekoff and seekpos
-      pos_type
-      _M_seek(off_type __off, ios_base::seekdir __way, __state_type __state);
-
-      virtual int
-      sync();
-
-      virtual void
-      imbue(const locale& __loc);
-
-      virtual streamsize
-      xsgetn(char_type* __s, streamsize __n);
-
-      virtual streamsize
-      xsputn(const char_type* __s, streamsize __n);
-
-      // Flushes output buffer, then writes unshift sequence.
-      bool
-      _M_terminate_output();
-
-      /**
-       *  This function sets the pointers of the internal buffer, both get
-       *  and put areas. Typically:
-       *
-       *   __off == egptr() - eback() upon underflow/uflow ('read' mode);
-       *   __off == 0 upon overflow ('write' mode);
-       *   __off == -1 upon open, setbuf, seekoff/pos ('uncommitted' mode).
-       *
-       *  NB: epptr() - pbase() == _M_buf_size - 1, since _M_buf_size
-       *  reflects the actual allocated memory and the last cell is reserved
-       *  for the overflow char of a full put area.
-       */
-      void
-      _M_set_buffer(streamsize __off)
-      {
- 	const bool __testin = _M_mode & ios_base::in;
- 	const bool __testout = _M_mode & ios_base::out;
-	
-	if (__testin && __off > 0)
-	  this->setg(_M_buf, _M_buf, _M_buf + __off);
-	else
-	  this->setg(_M_buf, _M_buf, _M_buf);
-
-	if (__testout && __off == 0 && _M_buf_size > 1 )
-	  this->setp(_M_buf, _M_buf + _M_buf_size - 1);
-	else
-	  this->setp(NULL, NULL);
-      }
-    };
-
-  // [27.8.1.5] Template class basic_ifstream
-  /**
-   *  @brief  Controlling input for files.
-   *  @ingroup io
-   *
-   *  This class supports reading from named files, using the inherited
-   *  functions from std::basic_istream.  To control the associated
-   *  sequence, an instance of std::basic_filebuf is used, which this page
-   *  refers to as @c sb.
-   */
-  template<typename _CharT, typename _Traits>
-    class basic_ifstream : public basic_istream<_CharT, _Traits>
-    {
-    public:
-      // Types:
-      typedef _CharT 					char_type;
-      typedef _Traits 					traits_type;
-      typedef typename traits_type::int_type 		int_type;
-      typedef typename traits_type::pos_type 		pos_type;
-      typedef typename traits_type::off_type 		off_type;
-
-      // Non-standard types:
-      typedef basic_filebuf<char_type, traits_type> 	__filebuf_type;
-      typedef basic_istream<char_type, traits_type>	__istream_type;
-
-    private:
-      __filebuf_type	_M_filebuf;
-
-    public:
-      // Constructors/Destructors:
-      /**
-       *  @brief  Default constructor.
-       *
-       *  Initializes @c sb using its default constructor, and passes
-       *  @c &sb to the base class initializer.  Does not open any files
-       *  (you haven't given it a filename to open).
-       */
-      basic_ifstream() : __istream_type(), _M_filebuf()
-      { this->init(&_M_filebuf); }
-
-      /**
-       *  @brief  Create an input file stream.
-       *  @param  s  Null terminated string specifying the filename.
-       *  @param  mode  Open file in specified mode (see std::ios_base).
-       *
-       *  @c ios_base::in is automatically included in @a mode.
-       *
-       *  Tip:  When using std::string to hold the filename, you must use
-       *  .c_str() before passing it to this constructor.
-       */
-      explicit
-      basic_ifstream(const char* __s, ios_base::openmode __mode = ios_base::in)
-      : __istream_type(), _M_filebuf()
-      {
-	this->init(&_M_filebuf);
-	this->open(__s, __mode);
-      }
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Create an input file stream.
-       *  @param  s  std::string specifying the filename.
-       *  @param  mode  Open file in specified mode (see std::ios_base).
-       *
-       *  @c ios_base::in is automatically included in @a mode.
-       */
-      explicit
-      basic_ifstream(const std::string& __s,
-		     ios_base::openmode __mode = ios_base::in)
-      : __istream_type(), _M_filebuf()
-      {
-	this->init(&_M_filebuf);
-	this->open(__s, __mode);
-      }
-#endif
-
-      /**
-       *  @brief  The destructor does nothing.
-       *
-       *  The file is closed by the filebuf object, not the formatting
-       *  stream.
-       */
-      ~basic_ifstream()
-      { }
-
-      // Members:
-      /**
-       *  @brief  Accessing the underlying buffer.
-       *  @return  The current basic_filebuf buffer.
-       *
-       *  This hides both signatures of std::basic_ios::rdbuf().
-       */
-      __filebuf_type*
-      rdbuf() const
-      { return const_cast<__filebuf_type*>(&_M_filebuf); }
-
-      /**
-       *  @brief  Wrapper to test for an open file.
-       *  @return  @c rdbuf()->is_open()
-       */
-      bool
-      is_open()
-      { return _M_filebuf.is_open(); }
-
-      // _GLIBCXX_RESOLVE_LIB_DEFECTS
-      // 365. Lack of const-qualification in clause 27
-      bool
-      is_open() const
-      { return _M_filebuf.is_open(); }
-
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *
-       *  Calls @c std::basic_filebuf::open(s,mode|in).  If that function
-       *  fails, @c failbit is set in the stream's error state.
-       *
-       *  Tip:  When using std::string to hold the filename, you must use
-       *  .c_str() before passing it to this constructor.
-       */
-      void
-      open(const char* __s, ios_base::openmode __mode = ios_base::in)
-      {
-	if (!_M_filebuf.open(__s, __mode | ios_base::in))
-	  this->setstate(ios_base::failbit);
-	else
-	  // _GLIBCXX_RESOLVE_LIB_DEFECTS
-	  // 409. Closing an fstream should clear error state
-	  this->clear();
-      }
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *
-       *  Calls @c std::basic_filebuf::open(s,mode|in).  If that function
-       *  fails, @c failbit is set in the stream's error state.
-       */
-      void
-      open(const std::string& __s, ios_base::openmode __mode = ios_base::in)
-      {
-	if (!_M_filebuf.open(__s, __mode | ios_base::in))
-	  this->setstate(ios_base::failbit);
-	else
-	  // _GLIBCXX_RESOLVE_LIB_DEFECTS
-	  // 409. Closing an fstream should clear error state
-	  this->clear();
-      }
-#endif
-
-      /**
-       *  @brief  Close the file.
-       *
-       *  Calls @c std::basic_filebuf::close().  If that function
-       *  fails, @c failbit is set in the stream's error state.
-       */
-      void
-      close()
-      {
-	if (!_M_filebuf.close())
-	  this->setstate(ios_base::failbit);
-      }
-    };
-
-
-  // [27.8.1.8] Template class basic_ofstream
-  /**
-   *  @brief  Controlling output for files.
-   *  @ingroup io
-   *
-   *  This class supports reading from named files, using the inherited
-   *  functions from std::basic_ostream.  To control the associated
-   *  sequence, an instance of std::basic_filebuf is used, which this page
-   *  refers to as @c sb.
-   */
-  template<typename _CharT, typename _Traits>
-    class basic_ofstream : public basic_ostream<_CharT,_Traits>
-    {
-    public:
-      // Types:
-      typedef _CharT 					char_type;
-      typedef _Traits 					traits_type;
-      typedef typename traits_type::int_type 		int_type;
-      typedef typename traits_type::pos_type 		pos_type;
-      typedef typename traits_type::off_type 		off_type;
-
-      // Non-standard types:
-      typedef basic_filebuf<char_type, traits_type> 	__filebuf_type;
-      typedef basic_ostream<char_type, traits_type>	__ostream_type;
-
-    private:
-      __filebuf_type	_M_filebuf;
-
-    public:
-      // Constructors:
-      /**
-       *  @brief  Default constructor.
-       *
-       *  Initializes @c sb using its default constructor, and passes
-       *  @c &sb to the base class initializer.  Does not open any files
-       *  (you haven't given it a filename to open).
-       */
-      basic_ofstream(): __ostream_type(), _M_filebuf()
-      { this->init(&_M_filebuf); }
-
-      /**
-       *  @brief  Create an output file stream.
-       *  @param  s  Null terminated string specifying the filename.
-       *  @param  mode  Open file in specified mode (see std::ios_base).
-       *
-       *  @c ios_base::out|ios_base::trunc is automatically included in
-       *  @a mode.
-       *
-       *  Tip:  When using std::string to hold the filename, you must use
-       *  .c_str() before passing it to this constructor.
-       */
-      explicit
-      basic_ofstream(const char* __s,
-		     ios_base::openmode __mode = ios_base::out|ios_base::trunc)
-      : __ostream_type(), _M_filebuf()
-      {
-	this->init(&_M_filebuf);
-	this->open(__s, __mode);
-      }
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Create an output file stream.
-       *  @param  s  std::string specifying the filename.
-       *  @param  mode  Open file in specified mode (see std::ios_base).
-       *
-       *  @c ios_base::out|ios_base::trunc is automatically included in
-       *  @a mode.
-       */
-      explicit
-      basic_ofstream(const std::string& __s,
-		     ios_base::openmode __mode = ios_base::out|ios_base::trunc)
-      : __ostream_type(), _M_filebuf()
-      {
-	this->init(&_M_filebuf);
-	this->open(__s, __mode);
-      }
-#endif
-
-      /**
-       *  @brief  The destructor does nothing.
-       *
-       *  The file is closed by the filebuf object, not the formatting
-       *  stream.
-       */
-      ~basic_ofstream()
-      { }
-
-      // Members:
-      /**
-       *  @brief  Accessing the underlying buffer.
-       *  @return  The current basic_filebuf buffer.
-       *
-       *  This hides both signatures of std::basic_ios::rdbuf().
-       */
-      __filebuf_type*
-      rdbuf() const
-      { return const_cast<__filebuf_type*>(&_M_filebuf); }
-
-      /**
-       *  @brief  Wrapper to test for an open file.
-       *  @return  @c rdbuf()->is_open()
-       */
-      bool
-      is_open()
-      { return _M_filebuf.is_open(); }
-
-      // _GLIBCXX_RESOLVE_LIB_DEFECTS
-      // 365. Lack of const-qualification in clause 27
-      bool
-      is_open() const
-      { return _M_filebuf.is_open(); }
-
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *
-       *  Calls @c std::basic_filebuf::open(s,mode|out|trunc).  If that
-       *  function fails, @c failbit is set in the stream's error state.
-       *
-       *  Tip:  When using std::string to hold the filename, you must use
-       *  .c_str() before passing it to this constructor.
-       */
-      void
-      open(const char* __s,
-	   ios_base::openmode __mode = ios_base::out | ios_base::trunc)
-      {
-	if (!_M_filebuf.open(__s, __mode | ios_base::out))
-	  this->setstate(ios_base::failbit);
-	else
-	  // _GLIBCXX_RESOLVE_LIB_DEFECTS
-	  // 409. Closing an fstream should clear error state
-	  this->clear();
-      }
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *
-       *  Calls @c std::basic_filebuf::open(s,mode|out|trunc).  If that
-       *  function fails, @c failbit is set in the stream's error state.
-       */
-      void
-      open(const std::string& __s,
-	   ios_base::openmode __mode = ios_base::out | ios_base::trunc)
-      {
-	if (!_M_filebuf.open(__s, __mode | ios_base::out))
-	  this->setstate(ios_base::failbit);
-	else
-	  // _GLIBCXX_RESOLVE_LIB_DEFECTS
-	  // 409. Closing an fstream should clear error state
-	  this->clear();
-      }
-#endif
-
-      /**
-       *  @brief  Close the file.
-       *
-       *  Calls @c std::basic_filebuf::close().  If that function
-       *  fails, @c failbit is set in the stream's error state.
-       */
-      void
-      close()
-      {
-	if (!_M_filebuf.close())
-	  this->setstate(ios_base::failbit);
-      }
-    };
-
-
-  // [27.8.1.11] Template class basic_fstream
-  /**
-   *  @brief  Controlling input and output for files.
-   *  @ingroup io
-   *
-   *  This class supports reading from and writing to named files, using
-   *  the inherited functions from std::basic_iostream.  To control the
-   *  associated sequence, an instance of std::basic_filebuf is used, which
-   *  this page refers to as @c sb.
-   */
-  template<typename _CharT, typename _Traits>
-    class basic_fstream : public basic_iostream<_CharT, _Traits>
-    {
-    public:
-      // Types:
-      typedef _CharT 					char_type;
-      typedef _Traits 					traits_type;
-      typedef typename traits_type::int_type 		int_type;
-      typedef typename traits_type::pos_type 		pos_type;
-      typedef typename traits_type::off_type 		off_type;
-
-      // Non-standard types:
-      typedef basic_filebuf<char_type, traits_type> 	__filebuf_type;
-      typedef basic_ios<char_type, traits_type>		__ios_type;
-      typedef basic_iostream<char_type, traits_type>	__iostream_type;
-
-    private:
-      __filebuf_type	_M_filebuf;
-
-    public:
-      // Constructors/destructor:
-      /**
-       *  @brief  Default constructor.
-       *
-       *  Initializes @c sb using its default constructor, and passes
-       *  @c &sb to the base class initializer.  Does not open any files
-       *  (you haven't given it a filename to open).
-       */
-      basic_fstream()
-      : __iostream_type(), _M_filebuf()
-      { this->init(&_M_filebuf); }
-
-      /**
-       *  @brief  Create an input/output file stream.
-       *  @param  s  Null terminated string specifying the filename.
-       *  @param  mode  Open file in specified mode (see std::ios_base).
-       *
-       *  Tip:  When using std::string to hold the filename, you must use
-       *  .c_str() before passing it to this constructor.
-       */
-      explicit
-      basic_fstream(const char* __s,
-		    ios_base::openmode __mode = ios_base::in | ios_base::out)
-      : __iostream_type(NULL), _M_filebuf()
-      {
-	this->init(&_M_filebuf);
-	this->open(__s, __mode);
-      }
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Create an input/output file stream.
-       *  @param  s  Null terminated string specifying the filename.
-       *  @param  mode  Open file in specified mode (see std::ios_base).
-       */
-      explicit
-      basic_fstream(const std::string& __s,
-		    ios_base::openmode __mode = ios_base::in | ios_base::out)
-      : __iostream_type(NULL), _M_filebuf()
-      {
-	this->init(&_M_filebuf);
-	this->open(__s, __mode);
-      }
-#endif
-
-      /**
-       *  @brief  The destructor does nothing.
-       *
-       *  The file is closed by the filebuf object, not the formatting
-       *  stream.
-       */
-      ~basic_fstream()
-      { }
-
-      // Members:
-      /**
-       *  @brief  Accessing the underlying buffer.
-       *  @return  The current basic_filebuf buffer.
-       *
-       *  This hides both signatures of std::basic_ios::rdbuf().
-       */
-      __filebuf_type*
-      rdbuf() const
-      { return const_cast<__filebuf_type*>(&_M_filebuf); }
-
-      /**
-       *  @brief  Wrapper to test for an open file.
-       *  @return  @c rdbuf()->is_open()
-       */
-      bool
-      is_open()
-      { return _M_filebuf.is_open(); }
-
-      // _GLIBCXX_RESOLVE_LIB_DEFECTS
-      // 365. Lack of const-qualification in clause 27
-      bool
-      is_open() const
-      { return _M_filebuf.is_open(); }
-
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *
-       *  Calls @c std::basic_filebuf::open(s,mode).  If that
-       *  function fails, @c failbit is set in the stream's error state.
-       *
-       *  Tip:  When using std::string to hold the filename, you must use
-       *  .c_str() before passing it to this constructor.
-       */
-      void
-      open(const char* __s,
-	   ios_base::openmode __mode = ios_base::in | ios_base::out)
-      {
-	if (!_M_filebuf.open(__s, __mode))
-	  this->setstate(ios_base::failbit);
-	else
-	  // _GLIBCXX_RESOLVE_LIB_DEFECTS
-	  // 409. Closing an fstream should clear error state
-	  this->clear();
-      }
-
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
-      /**
-       *  @brief  Opens an external file.
-       *  @param  s  The name of the file.
-       *  @param  mode  The open mode flags.
-       *
-       *  Calls @c std::basic_filebuf::open(s,mode).  If that
-       *  function fails, @c failbit is set in the stream's error state.
-       */
-      void
-      open(const std::string& __s,
-	   ios_base::openmode __mode = ios_base::in | ios_base::out)
-      {
-	if (!_M_filebuf.open(__s, __mode))
-	  this->setstate(ios_base::failbit);
-	else
-	  // _GLIBCXX_RESOLVE_LIB_DEFECTS
-	  // 409. Closing an fstream should clear error state
-	  this->clear();
-      }
-#endif
-
-      /**
-       *  @brief  Close the file.
-       *
-       *  Calls @c std::basic_filebuf::close().  If that function
-       *  fails, @c failbit is set in the stream's error state.
-       */
-      void
-      close()
-      {
-	if (!_M_filebuf.close())
-	  this->setstate(ios_base::failbit);
-      }
-    };
-
-_GLIBCXX_END_NAMESPACE
-
-#ifndef _GLIBCXX_EXPORT_TEMPLATE
-# include <bits/fstream.tcc>
-#endif
-
-#endif /* _GLIBCXX_FSTREAM */