1 /* int2num.c: bcmath library file. */
2 /*
3 Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
4 Copyright (C) 2000 Philip A. Nelson
5
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2 of the License, or (at your option) any later version.
10
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details. (LICENSE)
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with this library; if not, write to:
18
19 The Free Software Foundation, Inc.
20 59 Temple Place, Suite 330
21 Boston, MA 02111-1307 USA.
22
23 You may contact the author by:
24 e-mail: philnelson@acm.org
25 us-mail: Philip A. Nelson
26 Computer Science Department, 9062
27 Western Washington University
28 Bellingham, WA 98226-9062
29
30 *************************************************************************/
31
32 #include "bcmath.h"
33
34 /* Convert an integer VAL to a bc number NUM. */
35
bc_int2num(bc_num * num,int val)36 void bc_int2num(bc_num *num, int val)
37 {
38 char buffer[30];
39 char *bptr, *vptr;
40 int ix = 1;
41 char neg = 0;
42
43 /* Sign. */
44 if (val < 0) {
45 neg = 1;
46 val = -val;
47 }
48
49 /* Get things going. */
50 bptr = buffer;
51 *bptr++ = val % BASE;
52 val = val / BASE;
53
54 /* Extract remaining digits. */
55 while (val != 0) {
56 *bptr++ = val % BASE;
57 val = val / BASE;
58 /* Count the digits. */
59 ix++;
60 }
61
62 /* Make the number. */
63 bc_free_num (num);
64 *num = bc_new_num (ix, 0);
65 if (neg) {
66 (*num)->n_sign = MINUS;
67 }
68
69 /* Assign the digits. */
70 vptr = (*num)->n_value;
71 while (ix-- > 0) {
72 *vptr++ = *--bptr;
73 }
74 }
75
