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Annotation of GNUtools/libg++/libio/builtinbuf.h, revision 1.1.1.1

1.1       root        1: /* 
                      2: Copyright (C) 1993 Free Software Foundation
                      3: 
                      4: This file is part of the GNU IO Library.  This library is free
                      5: software; you can redistribute it and/or modify it under the
                      6: terms of the GNU General Public License as published by the
                      7: Free Software Foundation; either version 2, or (at your option)
                      8: any later version.
                      9: 
                     10: This library is distributed in the hope that it will be useful,
                     11: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     13: GNU General Public License for more details.
                     14: 
                     15: You should have received a copy of the GNU General Public License
                     16: along with GNU CC; see the file COPYING.  If not, write to
                     17: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
                     18: 
                     19: As a special exception, if you link this library with files
                     20: compiled with a GNU compiler to produce an executable, this does not cause
                     21: the resulting executable to be covered by the GNU General Public License.
                     22: This exception does not however invalidate any other reasons why
                     23: the executable file might be covered by the GNU General Public License. */
                     24: 
                     25: #ifndef _BUILTINBUF_H
                     26: #define _BUILTINBUF_H
                     27: 
                     28: #ifdef __GNUC__
                     29: #pragma interface
                     30: #pragma cplusplus
                     31: #endif
                     32: 
                     33: #include <streambuf.h>
                     34: 
                     35: // A builtinbuf a a streambuf where all the virtual operations
                     36: // call the _IO_jump_t table.
                     37: 
                     38: class builtinbuf : public streambuf {
                     39:   friend ios;
                     40:   virtual int overflow(int);
                     41:   virtual int underflow();
                     42:   virtual streamsize xsgetn(char *, streamsize);
                     43:   virtual streamsize xsputn(const char *, streamsize);
                     44:   virtual streambuf* setbuf(char*, int);
                     45:   virtual int doallocate();
                     46:   virtual ~builtinbuf();
                     47:   virtual int sync();
                     48: 
                     49:   virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
                     50:   virtual streampos seekpos(streampos pos, int mode = ios::in|ios::out);
                     51:   virtual int pbackfail(int c);
                     52:   virtual streamsize sys_read(char* buf, streamsize size);
                     53:   virtual streampos sys_seek(streamoff, _seek_dir);
                     54:   virtual streamsize sys_write(const char*, streamsize);
                     55:   virtual int sys_stat(void*); // Actually, a (struct stat*)
                     56:   virtual int sys_close();
                     57: #if 0
                     58:   virtual int get_column();
                     59:   virtual int set_column(int);
                     60: #endif
                     61:   friend const void *get_builtin_vtable();
                     62:   static const void *vtable;
                     63:  private:
                     64:   builtinbuf() { }
                     65: };
                     66: #endif  _BUILTINBUF_H

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