3 * $Id: mptext-file.c,v 1.2 1999/12/22 15:56:21 mdw Exp $
5 * Reading and writing large integers on files
7 * (c) 1999 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
14 * Catacomb is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * Catacomb is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU Library General Public License for more details.
24 * You should have received a copy of the GNU Library General Public
25 * License along with Catacomb; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
30 /*----- Revision history --------------------------------------------------*
32 * $Log: mptext-file.c,v $
33 * Revision 1.2 1999/12/22 15:56:21 mdw
34 * Make the buffer passed to `put' op constant.
36 * Revision 1.1 1999/11/17 18:02:16 mdw
37 * New multiprecision integer arithmetic suite.
41 /*----- Header files ------------------------------------------------------*/
47 /*----- Main code ---------------------------------------------------------*/
49 /* --- Operations table --- */
51 static int get(void *p) { FILE *fp = p; return getc(fp); }
53 static void unget(int ch, void *p) { FILE *fp = p; ungetc(ch, fp); }
55 static int put(const char *s, size_t sz, void *p)
58 return (fwrite(s, 1, sz, fp) != sz);
61 const mptext_ops mptext_fileops = { get, unget, put };
63 /* --- Convenience functions --- */
65 mp *mp_readfile(mp *m, FILE *fp, int radix)
67 return mp_read(m, radix, &mptext_fileops, fp);
70 int mp_writefile(mp *m, FILE *fp, int radix)
72 return mp_write(m, radix, &mptext_fileops, fp);
75 /*----- That's all, folks -------------------------------------------------*/