stdiostream.h
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上传用户:sichengcw
上传日期:2009-02-17
资源大小:202k
文件大小:3k
源码类别:
STL
开发平台:
Visual C++
- /* This is part of libio/iostream, providing -*- C++ -*- input/output.
- Copyright (C) 1993 Free Software Foundation
- This file is part of the GNU IO 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- As a special exception, if you link this library with files
- compiled with a GNU compiler to produce an executable, this does not 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. */
- /* Written by Per Bothner (bothner@cygnus.com). */
- #ifndef _STDIOSTREAM_H
- #define _STDIOSTREAM_H
- #ifdef __GNUG__
- #pragma interface
- #endif
- #include <iostream.h>
- #include <stdio.h>
- extern "C++" {
- class stdiobuf : public filebuf {
- protected:
- FILE *_file;
- public:
- FILE* stdiofile() const { return _file; }
- stdiobuf(FILE *);
- ~stdiobuf();
- int buffered () const { return _flags & _IO_UNBUFFERED ? 0 : 1; }
- void buffered (int);
- virtual streamsize sys_read(char*, streamsize);
- virtual streampos sys_seek(streamoff, _seek_dir);
- virtual streamsize sys_write(const char*, streamsize);
- virtual int sys_close();
- virtual int sync();
- virtual int overflow(int c = EOF);
- streamsize xsputn(const char* s, streamsize n);
- };
- class istdiostream : public istream
- {
- private:
- stdiobuf _file;
- public:
- istdiostream (FILE* __f) : istream(), _file(__f) { init(&_file); }
- stdiobuf* rdbuf()/* const */ { return &_file; }
- int buffered () const { return _file.buffered (); }
- void buffered (int _i) { _file.buffered (_i); }
- };
- class ostdiostream : public ostream
- {
- private:
- stdiobuf _file;
- public:
- ostdiostream (FILE* __f) : ostream(), _file(__f) { init(&_file); }
- stdiobuf* rdbuf() /* const */ { return &_file; }
- int buffered () const { return _file.buffered (); }
- void buffered (int _i) { _file.buffered (_i); }
- };
- } // extern "C++"
- #endif /* !_STDIOSTREAM_H */