busybox/coreutils/seq.c

/* vi: set sw=4 ts=4: */
/*
 * seq implementation for busybox
 *
 * Copyright (C) 2004, Glenn McGrath
 *
 * Licensed under the GPL v2, see the file LICENSE in this tarball.
 */

#include "libbb.h"

/* This is a NOFORK applet. Be very careful! */


int seq_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int seq_main(int argc, char **argv)
{
	double last, increment, i;

	i = increment = 1;
	switch (argc) {
		case 4:
			increment = atof(argv[2]);
		case 3:
			i = atof(argv[1]);
		case 2:
			last = atof(argv[argc-1]);
			break;
		default:
			bb_show_usage();
	}

	/* You should note that this is pos-5.0.91 semantics, -- FK. */
	while ((increment > 0 && i <= last) || (increment < 0 && i >= last)) {
		printf("%g\n", i);
		i += increment;
	}

	return fflush(stdout);
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* seq implementation for busybox
4	*
5	* Copyright (C) 2004, Glenn McGrath
6	*
7	* Licensed under the GPL v2, see the file LICENSE in this tarball.
8	*/
9
10	#include "libbb.h"
11
12	/* This is a NOFORK applet. Be very careful! */
13
14
15	int seq_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
16	int seq_main(int argc, char **argv)
17	{
18	double last, increment, i;
19
20	i = increment = 1;
21	switch (argc) {
22	case 4:
23	increment = atof(argv[2]);
24	case 3:
25	i = atof(argv[1]);
26	case 2:
27	last = atof(argv[argc-1]);
28	break;
29	default:
30	bb_show_usage();
31	}
32
33	/* You should note that this is pos-5.0.91 semantics, -- FK. */
34	while ((increment > 0 && i <= last) \|\| (increment < 0 && i >= last)) {
35	printf("%g\n", i);
36	i += increment;
37	}
38
39	return fflush(stdout);
40	}