1/* This is part of libio/iostream, providing -*- C++ -*- input/output.
2Copyright (C) 1993, 2000 Free Software Foundation
3
4This file is part of the GNU IO Library.  This library is free
5software; you can redistribute it and/or modify it under the
6terms of the GNU General Public License as published by the
7Free Software Foundation; either version 2, or (at your option)
8any later version.
9
10This library is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with this library; see the file COPYING.  If not, write to the Free
17Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19As a special exception, if you link this library with files
20compiled with a GNU compiler to produce an executable, this does not cause
21the resulting executable to be covered by the GNU General Public License.
22This exception does not however invalidate any other reasons why
23the executable file might be covered by the GNU General Public License. */
24
25#ifndef _FSTREAM_H
26#define _FSTREAM_H
27#ifdef __GNUG__
28#pragma interface
29#endif
30#include <iostream.h>
31
32extern "C++" {
33class fstreambase : virtual public ios {
34#ifdef _IO_NEW_STREAMS
35    mutable filebuf __my_fb; // mutable so rdbuf() can be const
36#endif
37    void __fb_init ();
38  public:
39    fstreambase();
40    fstreambase(int fd);
41    fstreambase(int fd, char *p, int l); /* Deprecated */
42    fstreambase(const char *name, int mode, int prot=0664);
43    void close();
44#ifdef _IO_NEW_STREAMS
45    filebuf* rdbuf() const { return &__my_fb; }
46#else
47    filebuf* rdbuf() const { return (filebuf*) ios::rdbuf(); }
48#endif
49    void open(const char *name, int mode, int prot=0664);
50    int is_open() const { return rdbuf()->is_open(); }
51    void setbuf(char *ptr, int len) { rdbuf()->setbuf(ptr, len); }
52    void attach(int fd);
53#ifdef _STREAM_COMPAT
54    int filedesc() { return rdbuf()->fd(); }
55    fstreambase& raw() { rdbuf()->setbuf(NULL, 0); return *this; }
56#endif
57};
58
59class ifstream : public fstreambase, public istream {
60  public:
61    ifstream() : fstreambase() { }
62    ifstream(int fd) : fstreambase(fd) { }
63    ifstream(int fd, char *p, int l) : fstreambase(fd, p, l) { } /*Deprecated*/
64    ifstream(const char *name, int mode=ios::in, int prot=0664)
65	: fstreambase(name, mode | ios::in, prot) { }
66    void open(const char *name, int mode=ios::in, int prot=0664)
67	{ fstreambase::open(name, mode | ios::in, prot); }
68};
69
70class ofstream : public fstreambase, public ostream {
71  public:
72    ofstream() : fstreambase() { }
73    ofstream(int fd) : fstreambase(fd) { }
74    ofstream(int fd, char *p, int l) : fstreambase(fd, p, l) { } /*Deprecated*/
75    ofstream(const char *name, int mode=ios::out, int prot=0664)
76	: fstreambase(name, mode | ios::out, prot) { }
77    void open(const char *name, int mode=ios::out, int prot=0664)
78	{ fstreambase::open(name, mode | ios::out, prot); }
79};
80
81class fstream : public fstreambase, public iostream {
82  public:
83    fstream() : fstreambase() { }
84    fstream(int fd) : fstreambase(fd) { }
85    fstream(const char *name, int mode, int prot=0664)
86	: fstreambase(name, mode, prot) { }
87    fstream(int fd, char *p, int l) : fstreambase(fd, p, l) { } /*Deprecated*/
88    void open(const char *name, int mode, int prot=0664)
89	{ fstreambase::open(name, mode, prot); }
90};
91} // extern "C++"
92#endif /*!_FSTREAM_H*/
93