Workshop o mikrokontrolérech na SKSP 2024.
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#include <ucw/lib.h>
#include <ucw/getopt.h>
void
reset_getopt(void)
{
// Should work on GNU libc
optind = 0;
}
#ifdef TEST
#include <stdio.h>
static void
parse(int argc, char **argv)
{
static struct option longopts[] = {
{ "longa", 0, 0, 'a' },
{ "longb", 0, 0, 'b' },
{ "longc", 1, 0, 'c' },
{ "longd", 1, 0, 'd' },
{ 0, 0, 0, 0 }
};
int opt;
while ((opt = getopt_long(argc, argv, "abc:d:", longopts, NULL)) >= 0)
switch (opt)
{
case 'a':
case 'b':
printf("option %c\n", opt);
break;
case 'c':
case 'd':
printf("option %c with value `%s'\n", opt, optarg);
break;
case '?':
printf("unknown option\n");
break;
default:
printf("getopt returned unexpected char 0x%02x\n", opt);
break;
}
if (optind != argc)
printf("%d nonoption arguments\n", argc - optind);
}
int
main(int argc, char **argv)
{
opterr = 0;
parse(argc, argv);
printf("reset\n");
reset_getopt();
parse(argc, argv);
return 0;
}
#endif