#include <stdio.h>
int main() {
    char *str = "xyz";
    char **c = &str;
    void **a, *b;
    a = c;
    b = c;
    printf("%p %p\n%s %s\n", a, b, *(char **)a, *(char **)b);
    return 0;
}

0xbf99b46c 0xbf99b46c
xyz xyz