1/*
2Copyright (C) 1993 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/*
26Copyright (C) 1988 Free Software Foundation
27    written by Doug Lea (dl@rocky.oswego.edu)
28
29This file is part of the GNU C++ Library.  This library is free
30software; you can redistribute it and/or modify it under the terms of
31the GNU Library General Public License as published by the Free
32Software Foundation; either version 2 of the License, or (at your
33option) any later version.  This library is distributed in the hope
34that it will be useful, but WITHOUT ANY WARRANTY; without even the
35implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
36PURPOSE.  See the GNU Library General Public License for more details.
37You should have received a copy of the GNU Library General Public
38License along with this library; if not, write to the Free Software
39Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
40*/
41
42#ifdef __GNUG__
43#pragma implementation
44#endif
45#include <SFile.h>
46
47SFile::SFile(const char *filename, int size, int mode, int prot)
48: fstream(filename, mode, prot)
49{
50  sz = size;
51}
52
53SFile::SFile(int fd, int size)
54: fstream(fd)
55{
56  sz = size;
57}
58
59void SFile::open(const char *name, int size, int mode, int prot)
60{
61    fstream::open(name, mode, prot);
62    sz = size;
63}
64
65SFile& SFile::get(void* x)
66{
67    read(x, sz);
68    return *this;
69}
70
71SFile& SFile::put(void* x)
72{
73    write(x, sz);
74    return *this;
75}
76
77SFile& SFile::operator[](long i)
78{
79    if (rdbuf()->pubseekoff(i * sz, ios::beg) == EOF)
80	set(ios::badbit);
81    return *this;
82}
83