/*
ft_printf
Copyright (C) 2026 yctct

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/


// using unsigned int as a paramter to deal with with negative numbers
#include "ft_printf.h"

int	ft_puthexupper(unsigned int n)
{
	const char	hex[16] = "0123456789ABCDEF";
	int			save;
	int			remainder;
	int			counter;

	remainder = 0;
	save = 0;
	counter = 0;
	if (n > 15)
	{
		save = n;
		n /= 16;
		remainder = save - (n * 16);
		counter += ft_puthexupper(n);
		counter += write(1, &hex[remainder], 1);
	}
	else
		counter += write(1, &hex[n], 1);
	return (counter);
}