3 * $Id: mptext-dstr.c,v 1.3 2000/08/04 23:23:44 mdw Exp $
5 * Reading and writing large integers on strings
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-dstr.c,v $
33 * Revision 1.3 2000/08/04 23:23:44 mdw
34 * Various <ctype.h> fixes.
36 * Revision 1.2 1999/12/22 15:56:21 mdw
37 * Make the buffer passed to `put' op constant.
39 * Revision 1.1 1999/11/17 18:02:16 mdw
40 * New multiprecision integer arithmetic suite.
44 /*----- Header files ------------------------------------------------------*/
46 #include <mLib/dstr.h>
50 /*----- Main code ---------------------------------------------------------*/
52 /* --- Operations table --- */
54 static int get(void *p)
56 mptext_dstrctx *c = p;
57 if (c->i >= c->d->len)
59 return ((unsigned char)c->d->buf[c->i++]);
62 static void unget(int ch, void *p)
64 mptext_dstrctx *c = p;
65 if (ch == EOF || c->i == 0)
70 static int put(const char *s, size_t sz, void *p)
72 mptext_dstrctx *c = p;
77 const mptext_ops mptext_dstrops = { get, unget, put };
79 /* --- Convenience functions --- */
81 mp *mp_readdstr(mp *m, dstr *d, size_t *off, int radix)
86 m = mp_read(m, radix, &mptext_dstrops, &c);
92 int mp_writedstr(mp *m, dstr *d, int radix)
97 rc = mp_write(m, radix, &mptext_dstrops, &c);
102 /*----- That's all, folks -------------------------------------------------*/