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ft_print_system2.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_print_system2.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: kakiba <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/07/29 15:50:31 by kakiba #+# #+# */
/* Updated: 2022/12/04 14:37:05 by kakiba ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
// int ft_puthex_fd(unsigned long long n, int fd, char c)
// {
// int written;
// written = 0;
// // if (n == LLONG_MIN)
// // return (write (1, "80000000", 8));
// // else if (n < 0)
// // {
// // n = -n;
// // written = write (fd, "-", 1);
// // }
// written += ft_hex_output(n, fd, c);
// return (written);
// }
int ft_puthex_fd(unsigned long long n, int fd, char c)
{
unsigned long long digit;
unsigned long long buf;
int count;
char ch;
count = 0;
digit = 1;
buf = n;
while (n >= 16)
{
n /= 16;
digit *= 16;
}
while (digit > 0)
{
ch = c_to_hex(buf / digit, c);
count += write (fd, &ch, 1);
buf %= digit;
digit /= 16;
}
return (count);
}
char c_to_hex(int n, char c)
{
if (n < 10)
return (n + '0');
else
{
if (c == 'x')
return (n + 'a' - 10);
else
return (n + 'A' - 10);
}
}