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authorbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2006-12-07 09:35:57 +0000
committerbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2006-12-07 09:35:57 +0000
commit0fe3068e3b47285bb5c21d6b19cf76ededffc68f (patch)
tree076de9fd1585847daacdaac6c30b78058cce3aa0 /libstdc++-v3/include/std/std_fstream.h
parent2f603cf0eb135bf67ff0bb570452df725a43c9ce (diff)
downloadppe42-gcc-0fe3068e3b47285bb5c21d6b19cf76ededffc68f.tar.gz
ppe42-gcc-0fe3068e3b47285bb5c21d6b19cf76ededffc68f.zip
2006-12-06 Benjamin Kosnik <bkoz@redhat.com>
* include/Makefile.am (std_headers_rename): Remove. (c_base_headers_rename): Remove. (std_headers): Adjust to true names. (c_base_headers): Adjust to true names. (stamp-c_base, stamp_std, stamp_c_base_extra): Adjust. * configure: Regenerate. * include/Makefile.in: Regenerate. * include/std/std_algorithm.h: To... * include/std/std_bitset.h: To... * include/std/std_complex.h: To... * include/std/std_deque.h: To... * include/std/std_fstream.h: To... * include/std/std_functional.h: To... * include/std/std_iomanip.h: To... * include/std/std_iosfwd.h: To... * include/std/std_ios.h: To... * include/std/std_iostream.h: To... * include/std/std_istream.h: To... * include/std/std_iterator.h: To... * include/std/std_limits.h: To... * include/std/std_list.h: To... * include/std/std_locale.h: To... * include/std/std_map.h: To... * include/std/std_memory.h: To... * include/std/std_numeric.h: To... * include/std/std_ostream.h: To... * include/std/std_queue.h: To... * include/std/std_set.h: To... * include/std/std_sstream.h: To... * include/std/std_stack.h: To... * include/std/std_stdexcept.h: To... * include/std/std_streambuf.h: To... * include/std/std_string.h: To... * include/std/std_utility.h: To... * include/std/std_valarray.h: To... * include/std/std_vector.h: To... * include/std/algorithm: ...this. * include/std/bitset: ...this. * include/std/complex: ...this. * include/std/deque: ...this. * include/std/fstream: ...this. * include/std/functional: ...this. * include/std/iomanip: ...this. * include/std/iosfwd: ...this. * include/std/ios: ...this. * include/std/iostream: ...this. * include/std/istream: ...this. * include/std/iterator: ...this. * include/std/limits: ...this. * include/std/list: ...this. * include/std/locale: ...this. * include/std/map: ...this. * include/std/memory: ...this. * include/std/numeric: ...this. * include/std/ostream: ...this. * include/std/queue: ...this. * include/std/set: ...this. * include/std/sstream: ...this. * include/std/stack: ...this. * include/std/stdexcept: ...this. * include/std/streambuf: ...this. * include/std/string: ...this. * include/std/utility: ...this. * include/std/valarray: ...this. * include/std/vector: ...this. * include/c_std/std_cassert.h: To... * include/c_std/std_cctype.h: To... * include/c_std/std_cerrno.h: To... * include/c_std/std_cfloat.h: To... * include/c_std/std_ciso646.h: To... * include/c_std/std_climits.h: To... * include/c_std/std_clocale.h: To... * include/c_std/std_cmath.h: To... * include/c_std/std_csetjmp.h: To... * include/c_std/std_csignal.h: To... * include/c_std/std_cstdarg.h: To... * include/c_std/std_cstddef.h: To... * include/c_std/std_cstdio.h: To... * include/c_std/std_cstdlib.h: To... * include/c_std/std_cstring.h: To... * include/c_std/std_ctime.h: To... * include/c_std/std_cwchar.h: To... * include/c_std/std_cwctype.h: To... * include/c_std/cassert: ...this. * include/c_std/cctype: ...this. * include/c_std/cerrno: ...this. * include/c_std/cfloat: ...this. * include/c_std/ciso646: ...this. * include/c_std/climits: ...this. * include/c_std/clocale: ...this. * include/c_std/cmath: ...this. * include/c_std/csetjmp: ...this. * include/c_std/csignal: ...this. * include/c_std/cstdarg: ...this. * include/c_std/cstddef: ...this. * include/c_std/cstdio: ...this. * include/c_std/cstdlib: ...this. * include/c_std/cstring: ...this. * include/c_std/ctime: ...this. * include/c_std/cwchar: ...this. * include/c_std/cwctype: ...this. * include/c/std_cassert.h: To... * include/c/std_cctype.h: To... * include/c/std_cerrno.h: To... * include/c/std_cfloat.h: To... * include/c/std_ciso646.h: To... * include/c/std_climits.h: To... * include/c/std_clocale.h: To... * include/c/std_cmath.h: To... * include/c/std_csetjmp.h: To... * include/c/std_csignal.h: To... * include/c/std_cstdarg.h: To... * include/c/std_cstddef.h: To... * include/c/std_cstdio.h: To... * include/c/std_cstdlib.h: To... * include/c/std_cstring.h: To... * include/c/std_ctime.h: To... * include/c/std_cwchar.h: To... * include/c/std_cwctype.h: To... * include/c/cassert: ...this. * include/c/cctype: ...this. * include/c/cerrno: ...this. * include/c/cfloat: ...this. * include/c/ciso646: ...this. * include/c/climits: ...this. * include/c/clocale: ...this. * include/c/cmath: ...this. * include/c/csetjmp: ...this. * include/c/csignal: ...this. * include/c/cstdarg: ...this. * include/c/cstddef: ...this. * include/c/cstdio: ...this. * include/c/cstdlib: ...this. * include/c/cstring: ...this. * include/c/ctime: ...this. * include/c/cwchar: ...this. * include/c/cwctype: ...this. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119611 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/include/std/std_fstream.h')
-rw-r--r--libstdc++-v3/include/std/std_fstream.h786
1 files changed, 0 insertions, 786 deletions
diff --git a/libstdc++-v3/include/std/std_fstream.h b/libstdc++-v3/include/std/std_fstream.h
deleted file mode 100644
index f664f2de9f4..00000000000
--- a/libstdc++-v3/include/std/std_fstream.h
+++ /dev/null
@@ -1,786 +0,0 @@
-// File based streams -*- C++ -*-
-
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
-// 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 2, 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.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-/** @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 <locale> // For codecvt
-#include <cstdio> // For SEEK_SET, SEEK_CUR, SEEK_END, BUFSIZ
-#include <bits/basic_file.h>
-#include <bits/gthr.h>
-
-_GLIBCXX_BEGIN_NAMESPACE(std)
-
- // [27.8.1.1] template class basic_filebuf
- /**
- * @brief The actual work of input and output (for files).
- *
- * 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 sematics 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 DefaultConstructable,
- // 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;
-
- /**
- * @if maint
- * Place to stash in || out || in | out settings for current filebuf.
- * @endif
- */
- 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;
-
- /**
- * @if maint
- * Pointer to the beginning of internal buffer.
- * @endif
- */
- char_type* _M_buf;
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- size_t _M_buf_size;
-
- // Set iff _M_buf is allocated memory from _M_allocate_internal_buffer.
- bool _M_buf_allocated;
-
- /**
- * @if maint
- * _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.
- * @endif
- */
- bool _M_reading;
- bool _M_writing;
-
- //@{
- /**
- * @if maint
- * Necessary bits for putback buffer management.
- *
- * @note pbacks of over one character are not currently supported.
- * @endif
- */
- 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;
-
- /**
- * @if maint
- * Buffer for external characters. Used for input when
- * codecvt::always_noconv() == false. When valid, this corresponds
- * to eback().
- * @endif
- */
- char* _M_ext_buf;
-
- /**
- * @if maint
- * Size of buffer held by _M_ext_buf.
- * @endif
- */
- streamsize _M_ext_buf_size;
-
- /**
- * @if maint
- * 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().
- * @endif
- */
- const char* _M_ext_next;
- char* _M_ext_end;
-
- /**
- * @if maint
- * Initializes pback buffers, and moves normal buffers to safety.
- * Assumptions:
- * _M_in_cur has already been moved back
- * @endif
- */
- 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;
- }
- }
-
- /**
- * @if maint
- * Deactivates pback buffer contents, and restores normal buffer.
- * Assumptions:
- * The pback buffer has only moved forward.
- * @endif
- */
- 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 gives the relation between openmode combinations and the
- * equivalent fopen() flags, but the table has not been copied yet.]
- */
- __filebuf_type*
- open(const char* __s, ios_base::openmode __mode);
-
- /**
- * @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() throw();
-
- 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
- // charater 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++/27_io/howto.html#2
- * 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();
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- 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.
- *
- * 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);
- }
-
- /**
- * @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();
- }
-
- /**
- * @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.
- *
- * 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);
- }
-
- /**
- * @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();
- }
-
- /**
- * @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 intput and output for files.
- *
- * 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);
- }
-
- /**
- * @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();
- }
-
- /**
- * @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 */
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