#include <stddef.h>

void *memset(void *ptr, int value, size_t sz)
{
    value = (unsigned char)value;
    unsigned int realval =
         value        |
        (value << 8)  |
        (value << 16) |
        (value << 24);

    unsigned char *buf = ptr;
    size_t i = 0;
    for (i = 0; i < sz; i += sizeof(unsigned int)) {
        unsigned int *t = (unsigned int *)&buf[i];
        *t = realval;
    }

    if (sz % sizeof(unsigned int)) {
        i -= sizeof(unsigned int);

        while (i < sz) {
            buf[i++] = value;
        }
    }

    return ptr;
}