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root/radiance/ray/src/cal/cnt.c
Revision: 1.2
Committed: Sun Jun 8 12:03:09 2003 UTC (20 years, 9 months ago) by schorsch
Content type: text/plain
Branch: MAIN
CVS Tags: rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad5R3
Changes since 1.1: +17 -10 lines
Log Message:
Reduced compile warnings/errors on Windows.

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: cnt.c,v 1.1 2003/02/22 02:07:20 greg Exp $";
3 #endif
4 /*
5 * cnt.c - simple counting program.
6 *
7 * 2/1/88
8 */
9
10 #include <stdlib.h>
11 #include <stdio.h>
12
13
14 int n[50];
15 char buf[256];
16
17 static void loop(int *n, char *b);
18
19 int
20 main(
21 int argc,
22 char *argv[]
23 )
24 {
25 int a;
26
27 argv++; argc--;
28 for (a = 0; a < argc; a++)
29 n[a] = atoi(argv[a]);
30 n[a] = 0;
31 loop(n, buf);
32
33 exit(0);
34 }
35
36
37 char *
38 tack(
39 register char *b,
40 register int i
41 )
42 {
43 register char *cp;
44 char *res;
45
46 *b++ = '\t';
47 cp = b;
48 if (i == 0)
49 *cp++ = '0';
50 else
51 do {
52 *cp++ = i%10 + '0';
53 i /= 10;
54 } while (i);
55 res = cp--;
56 #define c i
57 while (cp > b) { /* reverse string */
58 c = *cp;
59 *cp-- = *b;
60 *b++ = c;
61 }
62 #undef c
63 return(res);
64 }
65
66
67 static void
68 loop(
69 int *n,
70 char *b
71 )
72 {
73 int i;
74
75 if (n[0] == 0) {
76 *b = '\0';
77 puts(buf);
78 return;
79 }
80 for (i = 0; i < n[0]; i++)
81 loop(n+1, tack(b, i));
82 }