1 /* This is part of libio/iostream, providing -*- C++ -*- input/output. 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 this library; see the file COPYING. If not, write to the Free 17 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 /* Written by Per Bothner (bothner@cygnus.com). */ 26 27 #ifndef _STDIOSTREAM_H 28 #define _STDIOSTREAM_H 29 30 #ifdef __GNUG__ 31 #pragma interface 32 #endif 33 34 #include <iostream.h> 35 #include <stdio.h> 36 37 extern "C++" { 38 class stdiobuf : public filebuf { 39 protected: 40 FILE *_file; 41 public: 42 FILE* stdiofile() const { return _file; } 43 stdiobuf(FILE *); 44 ~stdiobuf(); 45 int buffered () const { return _flags & _IO_UNBUFFERED ? 0 : 1; } 46 void buffered (int); 47 virtual streamsize sys_read(char*, streamsize); 48 virtual streampos sys_seek(streamoff, _seek_dir); 49 virtual streamsize sys_write(const char*, streamsize); 50 virtual int sys_close(); 51 virtual int sync(); 52 virtual int overflow(int c = EOF); 53 streamsize xsputn(const char* s, streamsize n); 54 }; 55 56 class istdiostream : public istream 57 { 58 private: 59 stdiobuf _file; 60 public: 61 istdiostream (FILE* __f) : istream(), _file(__f) { init(&_file); } 62 stdiobuf* rdbuf()/* const */ { return &_file; } 63 int buffered () const { return _file.buffered (); } 64 void buffered (int _i) { _file.buffered (_i); } 65 }; 66 67 class ostdiostream : public ostream 68 { 69 private: 70 stdiobuf _file; 71 public: 72 ostdiostream (FILE* __f) : ostream(), _file(__f) { init(&_file); } 73 stdiobuf* rdbuf() /* const */ { return &_file; } 74 int buffered () const { return _file.buffered (); } 75 void buffered (int _i) { _file.buffered (_i); } 76 }; 77 } // extern "C++" 78 79 #endif /* !_STDIOSTREAM_H */ 80