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ft_print_int.c
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ft_print_int.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_print_int.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ksuenaga <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/02/03 14:36:24 by ksuenaga #+# #+# */
/* Updated: 2024/02/03 16:24:32 by ksuenaga ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int count_digits(long nb)
{
int digits;
digits = 1;
while (nb >= 10)
{
nb /= 10;
digits++;
}
return (digits);
}
char *ft_itoa(int n)
{
char *str;
int len;
long nb;
int neg;
nb = n;
neg = 0;
if (nb < 0)
{
nb *= -1;
neg = 1;
}
len = count_digits(nb);
str = (char *)malloc(sizeof(char) * (neg + len + 1));
if (!str)
return (NULL);
str[len + neg] = '\0';
if (n < 0)
str[0] = '-';
while (len-- > 0)
{
str[len + neg] = (nb % 10) + '0';
nb /= 10;
}
return (str);
}
int ft_print_int(int n)
{
int count;
char *str;
count = 0;
str = ft_itoa(n);
if (str == NULL)
return (-1);
count += ft_print_string(str);
free(str);
return (count);
}