src/cal/cnt.c

#ifndef lint
static const char       RCSid[] = "$Id: cnt.c,v 1.1 2003/02/22 02:07:20 greg Exp $";
#endif
/*
 *  cnt.c - simple counting program.
 *
 *      2/1/88
 */

#include  <stdlib.h>
#include  <stdio.h>


int  n[50];
char  buf[256];

static void loop(int *n, char *b);

int
main(
int  argc,
char  *argv[]
)
{
        int  a;

        argv++; argc--;
        for (a = 0; a < argc; a++)
                n[a] = atoi(argv[a]);
        n[a] = 0;
        loop(n, buf);

        exit(0);
}


char *
tack(
register char  *b,
register int  i
)
{
        register char  *cp;
        char  *res;

        *b++ = '\t';
        cp = b;
        if (i == 0)
                *cp++ = '0';
        else
                do {
                        *cp++ = i%10 + '0';
                        i /= 10;
                } while (i);
        res = cp--;
#define c i
        while (cp > b) {                /* reverse string */
                c = *cp;
                *cp-- = *b;
                *b++ = c;
        }
#undef c
        return(res);
}


static void
loop(
int  *n,
char  *b
)
{
        int  i;

        if (n[0] == 0) {
                *b = '\0';
                puts(buf);
                return;
        }
        for (i = 0; i < n[0]; i++)
                loop(n+1, tack(b, i));
}
Revision:	1.2
Committed:	Sun Jun 8 12:03:09 2003 UTC (22 years, 5 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R3, rad5R2, rad5R1, rad5R0, rad4R2P2, rad4R2P1, rad4R2, rad4R1, rad4R0, rad3R9, rad3R8, rad3R7P2, rad3R7P1, rad3R6P1, rad3R6
Changes since 1.1:	+17 -10 lines
Log Message:	Reduced compile warnings/errors on Windows.
#	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	}