| 1 | /* depend: */ |
| 2 | /* cflags: */ |
| 3 | /* linker: */ |
| 4 | |
| 5 | #include <assert.h> |
| 6 | #include <getopt.h> |
| 7 | #include <malloc.h> |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | |
| 11 | /* macros */ |
| 12 | |
| 13 | #define CEIL(x, y) (((x) + (y) - 1) / (y)) |
| 14 | #define MIN(x, y) (((x) < (y)) ? (x) : (y)) |
| 15 | #define MAX(x, y) (((x) > (y)) ? (x) : (y)) |
| 16 | #define VERBOSE(level, statement...) do { if (level <= verbose) { statement; } } while(0) |
| 17 | |
| 18 | /* gobal variables */ |
| 19 | |
| 20 | char *progname = NULL; |
| 21 | int verbose = 0; |
| 22 | |
| 23 | /* help function */ |
| 24 | |
| 25 | void usage (int ret) |
| 26 | { |
| 27 | FILE *fd = ret ? stderr : stdout; |
| 28 | fprintf (fd, "usage: %s\n", progname); |
| 29 | fprintf (fd, " -h : help message\n"); |
| 30 | fprintf (fd, " -v : verbose level (%d)\n", verbose); |
| 31 | |
| 32 | exit (ret); |
| 33 | } |
| 34 | |
| 35 | /* main function */ |
| 36 | |
| 37 | int main (int argc, char *argv[]) |
| 38 | { |
| 39 | |
| 40 | progname = argv[0]; |
| 41 | |
| 42 | int c; |
| 43 | while ((c = getopt(argc, argv, "hv:")) != EOF) { |
| 44 | switch (c) { |
| 45 | case 'v': |
| 46 | verbose = atoi (optarg); |
| 47 | break; |
| 48 | case 'h': |
| 49 | default: |
| 50 | usage (c != 'h'); |
| 51 | } |
| 52 | } |
| 53 | if (argc - optind != 0) { |
| 54 | fprintf (stderr, "%s: invalid option -- %s\n", progname, argv[optind]); |
| 55 | usage (1); |
| 56 | } |
| 57 | |
| 58 | printf ("work in progress...\n"); |
| 59 | |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | // test: skel.exe -h |
| 64 | // test: skel.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }' |
| 65 | // test: skel.exe -_ 2> /dev/null | awk 'END { if (NR == 0) { exit(0) } else exit (1) }' |
| 66 | // test: skel.exe -_ 2>&1 | awk '/usage:/ { rc=1 } END { exit (1-rc) }' |
| 67 | |
| 68 | /* vim: set ts=4 sw=4 et */ |