simple/count/count.c

31 lines
546 B
C

#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv) {
unsigned long start = 0;
unsigned long stop = ULONG_MAX;
unsigned long i;
switch (argc) {
case 0:
case 1:
break;
case 2:
stop = strtoul(argv[1], NULL, 0);
break;
case 3:
start = strtoul(argv[1], NULL, 0);
stop = strtoul(argv[2], NULL, 0);
break;
default:
fprintf(stderr, "Usage: %s [[start] stop]\n", argv[0]);
exit(1);
}
for (i = start; i < stop; i++) {
printf("%ld\n", i);
}
return 0;
}