#include <stdio.h>
#include <stdlib.h>

int main() {
    void* p = malloc(10);
    printf("Malloc ptr: %p\n", p);
    unsigned long long addr = (unsigned long long)p;
    if (addr > 0x00007fffffffffffULL) {
        printf("Address > 48-bit detected!\n");
    } else {
        printf("Address within 48-bit range.\n");
    }
    free(p);
    return 0;
}