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 <config.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <ctype.h>
36 #include <stdarg.h>
37 #include "bcmath.h"
38 #include "private.h"
39
40
41 /* Convert an integer VAL to a bc number NUM. */
42
43 void
bc_int2num(num,val)44 bc_int2num (num, val)
45 bc_num *num;
46 int val;
47 {
48 char buffer[30];
49 char *bptr, *vptr;
50 int ix = 1;
51 char neg = 0;
52
53 /* Sign. */
54 if (val < 0)
55 {
56 neg = 1;
57 val = -val;
58 }
59
60 /* Get things going. */
61 bptr = buffer;
62 *bptr++ = val % BASE;
63 val = val / BASE;
64
65 /* Extract remaining digits. */
66 while (val != 0)
67 {
68 *bptr++ = val % BASE;
69 val = val / BASE;
70 ix++; /* Count the digits. */
71 }
72
73 /* Make the number. */
74 bc_free_num (num);
75 *num = bc_new_num (ix, 0);
76 if (neg) (*num)->n_sign = MINUS;
77
78 /* Assign the digits. */
79 vptr = (*num)->n_value;
80 while (ix-- > 0)
81 *vptr++ = *--bptr;
82 }
83
