kolibrios/programs/develop/ktcc/trunk/samples/getopt_ex.c

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#include <stdio.h>
#include <getopt.h>
#include <stdlib.h>
void main(int argc, char *argv[]) {
int c;
if(argc<2)
{
puts("Usage: getopt_ex [options]\n");
puts("-a Show 'Option a'");
puts("-B Show 'Option B'");
puts("-n [num] Show 'num'");
}
while ((c = getopt(argc, argv, "aBn:")) != EOF) {
switch (c) {
case 'a':
puts("Option 'a'");
break;
case 'B':
puts("Option 'B'");
break;
case 'n':
printf("Option n: value=%d\n", atoi(optarg));
break;
case '?':
printf("ERROR: illegal option %s\n", argv[optind-1]);
exit(0);
default:
printf("WARNING: no handler for option %c\n", c);
exit(0);
}
}
exit(0);
}