d3409d5e |
1 | /* -*-c-*- |
d3409d5e |
2 | * |
3 | * Reading and writing large integers on files |
4 | * |
5 | * (c) 1999 Straylight/Edgeware |
6 | */ |
7 | |
45c0fd36 |
8 | /*----- Licensing notice --------------------------------------------------* |
d3409d5e |
9 | * |
10 | * This file is part of Catacomb. |
11 | * |
12 | * Catacomb is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU Library General Public License as |
14 | * published by the Free Software Foundation; either version 2 of the |
15 | * License, or (at your option) any later version. |
45c0fd36 |
16 | * |
d3409d5e |
17 | * Catacomb is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU Library General Public License for more details. |
45c0fd36 |
21 | * |
d3409d5e |
22 | * You should have received a copy of the GNU Library General Public |
23 | * License along with Catacomb; if not, write to the Free |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
25 | * MA 02111-1307, USA. |
26 | */ |
27 | |
d3409d5e |
28 | /*----- Header files ------------------------------------------------------*/ |
29 | |
30 | #include <stdio.h> |
31 | |
32 | #include "mptext.h" |
33 | |
34 | /*----- Main code ---------------------------------------------------------*/ |
35 | |
36 | /* --- Operations table --- */ |
37 | |
38 | static int get(void *p) { FILE *fp = p; return getc(fp); } |
39 | |
40 | static void unget(int ch, void *p) { FILE *fp = p; ungetc(ch, fp); } |
41 | |
b9b786f5 |
42 | static int put(const char *s, size_t sz, void *p) |
d3409d5e |
43 | { |
44 | FILE *fp = p; |
45 | return (fwrite(s, 1, sz, fp) != sz); |
46 | } |
47 | |
48 | const mptext_ops mptext_fileops = { get, unget, put }; |
49 | |
50 | /* --- Convenience functions --- */ |
51 | |
52 | mp *mp_readfile(mp *m, FILE *fp, int radix) |
53 | { |
54 | return mp_read(m, radix, &mptext_fileops, fp); |
55 | } |
56 | |
57 | int mp_writefile(mp *m, FILE *fp, int radix) |
58 | { |
59 | return mp_write(m, radix, &mptext_fileops, fp); |
60 | } |
61 | |
62 | /*----- That's all, folks -------------------------------------------------*/ |