3 * $Id: mptext-dstr.c,v 1.2 1999/12/22 15:56:21 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 1.2 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 ------------------------------------------------------*/
43 #include <mLib/dstr.h>
47 /*----- Main code ---------------------------------------------------------*/
49 /* --- Operations table --- */
51 static int get(void *p
)
53 mptext_dstrctx
*c
= p
;
54 if (c
->i
>= c
->d
->len
)
56 return (c
->d
->buf
[c
->i
++]);
59 static void unget(int ch
, void *p
)
61 mptext_dstrctx
*c
= p
;
62 if (ch
== EOF
|| c
->i
== 0)
67 static int put(const char *s
, size_t sz
, void *p
)
69 mptext_dstrctx
*c
= p
;
74 const mptext_ops mptext_dstrops
= { get
, unget
, put
};
76 /* --- Convenience functions --- */
78 mp
*mp_readdstr(mp
*m
, dstr
*d
, size_t *off
, int radix
)
83 m
= mp_read(m
, radix
, &mptext_dstrops
, &c
);
89 int mp_writedstr(mp
*m
, dstr
*d
, int radix
)
94 rc
= mp_write(m
, radix
, &mptext_dstrops
, &c
);
99 /*----- That's all, folks -------------------------------------------------*/