#include <assert.h>
#include <memory.h>
#include <stdlib.h>

int memory_sweep(const uintptr_t start, const uintptr_t end) {
    assert_msg(start < end, "Start needs to be before end.");
    uintptr_t sweeper = start;

    while (sweeper < end) {
        *(uint64_t *)sweeper = 0xFAFAFAFABCBCBCBC;
        sweeper += sizeof(uint64_t);
    }

    sweeper -= sizeof(uint64_t);
    while (sweeper != start) {
        assert(*(uint64_t *)sweeper == 0xFAFAFAFABCBCBCBC);
        sweeper -= sizeof(uint64_t);
    }

    return EXIT_SUCCESS;
}