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#pragma clang diagnostic ignored "-Winvalid-pp-token"
#pragma clang diagnostic ignored "-Wdeprecated-writable-strings"
#include <stdio.h> /* for printf */
#include <stdlib.h> /* for exit */
#include <getopt.h>
int main(int argc, char **argv) {
int c;
int digit_optind = 0;
while (1) {
int this_option_optind = optind ? optind : 1;
int option_index = 0;
static struct option long_options[] = {
{"add", required_argument, 0, 0},
{"append", no_argument, 0, 0},
{"delete", required_argument, 0, 0},
{"verbose", no_argument, 0, 0},
{"create", required_argument, 0, 'c'},
{"file", required_argument, 0, 0},
{0, 0, 0, 0}};
c = getopt_long(argc, argv, "abc:d:012", long_options, &option_index);
if (c == -1) break;
switch (c) {
case 0:
printf("option %s", long_options[option_index].name);
if (optarg) printf(" with arg %s", optarg);
printf("\n");
break;
case '0':
case '1':
case '2':
if (digit_optind != 0 && digit_optind != this_option_optind)
printf("digits occur in two different argv-elements.\n");
digit_optind = this_option_optind;
printf("option %c\n", c);
break;
case 'a':
printf("option a\n");
break;
case 'b':
printf("option b\n");
break;
case 'c':
printf("option c with value '%s'\n", optarg);
break;
case 'd':
printf("option d with value '%s'\n", optarg);
break;
case '?':
break;
default:
printf("?? getopt returned character code 0%o ??\n", c);
}
}
if (optind < argc) {
printf("non-option ARGV-elements: ");
while (optind < argc) printf("%s ", argv[optind++]);
printf("\n");
}
exit(EXIT_SUCCESS);
}
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