TruffleC: A C implementation on top of JVM (2014)(dl.acm.org)

    intptr_t x = (intptr_t)malloc(sizeof(int));
    *(int*)x = 99;
    bool did_subtract_50 = false;
    if (x > 50) {
        did_subtract_50 = true;
        x -= 50;
    }
    // Now there is no pointer or even integer that contains the address
    
    // ... later ...
    // Retrieve the address and use and free it
    int* y = (int*)(x + 50 * did_subtract_50);
    printf("value: %d\n", *y);
    free(y);