u32
ft_putnbrhex_upper_fd(u32 v, u32 fd)
{
	i32		tmp = 0, count = 0;
	char	hex[100];

	if (v == 0)
		return ft_putchar_fd('0', fd);
	while (v > 0) {
		tmp = v % 16;
		if (tmp < 10)
			hex[count++] = (tmp + 48);
		else
			hex[count++] = (tmp + 55);
		v = v / 16;
	}
	tmp = count;
	while (--tmp >= 0)
		ft_putchar_fd(hex[tmp], fd);
	return (count);
}