diff options
Diffstat (limited to 'contrib/libstdc++/include/std/std_fstream.h')
| -rw-r--r-- | contrib/libstdc++/include/std/std_fstream.h | 167 |
1 files changed, 55 insertions, 112 deletions
diff --git a/contrib/libstdc++/include/std/std_fstream.h b/contrib/libstdc++/include/std/std_fstream.h index 3dec366fcc16..f664f2de9f4e 100644 --- a/contrib/libstdc++/include/std/std_fstream.h +++ b/contrib/libstdc++/include/std/std_fstream.h @@ -1,6 +1,6 @@ // File based streams -*- C++ -*- -// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 +// 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 @@ -16,7 +16,7 @@ // 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// 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 @@ -28,15 +28,14 @@ // 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 // -/** @file fstream - * This is a Standard C++ Library header. You should @c #include this header - * in your programs, rather than any of the "st[dl]_*.h" implementation files. - */ - #ifndef _GLIBCXX_FSTREAM #define _GLIBCXX_FSTREAM 1 @@ -49,8 +48,8 @@ #include <bits/basic_file.h> #include <bits/gthr.h> -namespace std -{ +_GLIBCXX_BEGIN_NAMESPACE(std) + // [27.8.1.1] template class basic_filebuf /** * @brief The actual work of input and output (for files). @@ -76,37 +75,20 @@ namespace std typedef typename traits_type::pos_type pos_type; typedef typename traits_type::off_type off_type; - //@{ - /** - * @if maint - * @doctodo - * @endif - */ 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. - /** - * @if maint - * @doctodo - * @endif - */ __c_lock _M_lock; // External buffer. - /** - * @if maint - * @doctodo - * @endif - */ __file_type _M_file; /** @@ -117,30 +99,15 @@ namespace std ios_base::openmode _M_mode; // Beginning state type for codecvt. - /** - * @if maint - * @doctodo - * @endif - */ __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. - /** - * @if maint - * @doctodo - * @endif - */ __state_type _M_state_cur; // Not used for output. During input, the state that corresponds // to eback() and _M_ext_buf. - /** - * @if maint - * @doctodo - * @endif - */ __state_type _M_state_last; /** @@ -160,11 +127,6 @@ namespace std size_t _M_buf_size; // Set iff _M_buf is allocated memory from _M_allocate_internal_buffer. - /** - * @if maint - * @doctodo - * @endif - */ bool _M_buf_allocated; /** @@ -255,7 +217,7 @@ namespace std { // Length _M_in_cur moved in the pback buffer. _M_pback_cur_save += this->gptr() != this->eback(); - this->setg(this->_M_buf, _M_pback_cur_save, _M_pback_end_save); + this->setg(_M_buf, _M_pback_cur_save, _M_pback_end_save); _M_pback_init = false; } } @@ -282,7 +244,8 @@ namespace std * @brief Returns true if the external file is open. */ bool - is_open() const throw() { return _M_file.is_open(); } + is_open() const throw() + { return _M_file.is_open(); } /** * @brief Opens an external file. @@ -315,24 +278,13 @@ namespace std close() throw(); protected: - /** - * @if maint - * @doctodo - * @endif - */ void _M_allocate_internal_buffer(); - /** - * @if maint - * @doctodo - * @endif - */ void _M_destroy_internal_buffer() throw(); // [27.8.1.4] overridden virtual functions - // [documentation is inherited] virtual streamsize showmanyc(); @@ -341,11 +293,9 @@ namespace std // charater from the real input source when the buffer is empty. // Buffered input uses underflow() - // [documentation is inherited] virtual int_type underflow(); - // [documentation is inherited] virtual int_type pbackfail(int_type __c = _Traits::eof()); @@ -356,21 +306,11 @@ namespace std // character c. // 27.5.2.4.5 // Consume some sequence of the characters in the pending sequence. - /** - * @if maint - * @doctodo - * @endif - */ virtual int_type overflow(int_type __c = _Traits::eof()); // Convert internal byte sequence to external, char-based // sequence via codecvt. - /** - * @if maint - * @doctodo - * @endif - */ bool _M_convert_to_external(char_type*, streamsize); @@ -389,47 +329,31 @@ namespace std virtual __streambuf_type* setbuf(char_type* __s, streamsize __n); - // [documentation is inherited] virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __mode = ios_base::in | ios_base::out); - // [documentation is inherited] virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode = ios_base::in | ios_base::out); // Common code for seekoff and seekpos - /** - * @if maint - * @doctodo - * @endif - */ pos_type _M_seek(off_type __off, ios_base::seekdir __way, __state_type __state); - // [documentation is inherited] virtual int sync(); - // [documentation is inherited] virtual void imbue(const locale& __loc); - // [documentation is inherited] virtual streamsize xsgetn(char_type* __s, streamsize __n); - // [documentation is inherited] virtual streamsize xsputn(const char_type* __s, streamsize __n); // Flushes output buffer, then writes unshift sequence. - /** - * @if maint - * @doctodo - * @endif - */ bool _M_terminate_output(); @@ -450,16 +374,16 @@ namespace std void _M_set_buffer(streamsize __off) { - const bool __testin = this->_M_mode & ios_base::in; - const bool __testout = this->_M_mode & ios_base::out; + const bool __testin = _M_mode & ios_base::in; + const bool __testout = _M_mode & ios_base::out; if (__testin && __off > 0) - this->setg(this->_M_buf, this->_M_buf, this->_M_buf + __off); + this->setg(_M_buf, _M_buf, _M_buf + __off); else - this->setg(this->_M_buf, this->_M_buf, this->_M_buf); + this->setg(_M_buf, _M_buf, _M_buf); - if (__testout && __off == 0 && this->_M_buf_size > 1 ) - this->setp(this->_M_buf, this->_M_buf + this->_M_buf_size - 1); + if (__testout && __off == 0 && _M_buf_size > 1 ) + this->setp(_M_buf, _M_buf + _M_buf_size - 1); else this->setp(NULL, NULL); } @@ -490,11 +414,6 @@ namespace std typedef basic_istream<char_type, traits_type> __istream_type; private: - /** - * @if maint - * @doctodo - * @endif - */ __filebuf_type _M_filebuf; public: @@ -552,7 +471,14 @@ namespace std * @return @c rdbuf()->is_open() */ bool - is_open() { return _M_filebuf.is_open(); } + 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. @@ -570,6 +496,10 @@ namespace std { 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(); } /** @@ -612,11 +542,6 @@ namespace std typedef basic_ostream<char_type, traits_type> __ostream_type; private: - /** - * @if maint - * @doctodo - * @endif - */ __filebuf_type _M_filebuf; public: @@ -676,7 +601,14 @@ namespace std * @return @c rdbuf()->is_open() */ bool - is_open() { return _M_filebuf.is_open(); } + 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. @@ -695,6 +627,10 @@ namespace std { 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(); } /** @@ -738,11 +674,6 @@ namespace std typedef basic_iostream<char_type, traits_type> __iostream_type; private: - /** - * @if maint - * @doctodo - * @endif - */ __filebuf_type _M_filebuf; public: @@ -800,7 +731,14 @@ namespace std * @return @c rdbuf()->is_open() */ bool - is_open() { return _M_filebuf.is_open(); } + 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. @@ -819,6 +757,10 @@ namespace std { 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(); } /** @@ -834,7 +776,8 @@ namespace std this->setstate(ios_base::failbit); } }; -} // namespace std + +_GLIBCXX_END_NAMESPACE #ifndef _GLIBCXX_EXPORT_TEMPLATE # include <bits/fstream.tcc> |