mb_copy_char(char_u **fp, char_u **tp)
{
    int	    l = (*mb_ptr2len)(*fp);

    mch_memmove(*tp, *fp, (size_t)l);
    *tp += l;
    *fp += l;
}
mb_copy_char(char_u **fp, char_u **tp)
{
    int	    l = (*mb_ptr2len)(*fp);

    mch_memmove(*tp, *fp, (size_t)l);
    *tp += l;
    *fp += l;
}