#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char * argv[]) {
printf("sizeof(key_t) = %lu\n", sizeof(key_t));
//~ printf("SEMMSL = %lu\n", SEMMSL);
return 0;
}