source: branches/2.2.9/mindi-busybox/coreutils/seq.c @ 2142

Last change on this file since 2142 was 1765, checked in by bruno, 12 years ago

Update to busybox 1.7.2

File size: 752 bytes
Line 
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
15int seq_main(int argc, char **argv);
16int 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}
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