graphs/piscine/my_memmove/my_memmove.c


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#include "my_memmove.h"

void *my_memmove(void *dest, const void *src, size_t n)
{
    char *d = dest;
    const char *s = src;
    if (dest > src) // reverse array
    {
        size_t l = n;
        for (; l > 0; l--)
        {
            d[l - 1] = s[l - 1];
        }
    }
    else
    {
        for (size_t i = 0; i < n; i++)
        {
            d[i] = s[i];
        }
    }
    return dest;
}