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ft_utils.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_utils.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: heveline <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/06/06 20:03:00 by heveline #+# #+# */
/* Updated: 2021/06/06 20:07:44 by heveline ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
char *ft_itoa(int n)
{
int i;
char *nbr;
if (n == -2147483648)
return (ft_strdup("-2147483648"));
else if (n == 0)
return (ft_strdup("0"));
i = ft_num_int(n, 10);
nbr = (char *)malloc(i + 1);
if (!nbr)
return (0);
nbr[i] = '\0';
i--;
if (n < 0)
{
nbr[0] = '-';
n = n * (-1);
}
while (n > 0)
{
nbr[i] = (n % 10) + '0';
n /= 10;
i--;
}
return (nbr);
}
char *ft_itoa_u(unsigned int n)
{
int i;
char *res;
if (n == 0)
return (ft_strdup("0"));
i = ft_num_u(n, 10);
res = (char *)malloc(i + 1);
if (!res)
return (NULL);
res[i] = '\0';
i--;
if (n < 0)
{
res[0] = '-';
n = n * (-1);
}
while (n > 0)
{
res[i] = (n % 10) + '0';
n = n / 10;
i--;
}
return (res);
}
char *ft_itoa_base_uX(unsigned long long n, int base)
{
int i;
char *nbr;
if (n == 0)
return (ft_strdup("0"));
i = ft_num_u(n, base);
nbr = (char *)malloc(sizeof(char *) * i + 1);
if (!nbr)
return (0);
nbr[i--] = '\0';
if (n < 0)
{
nbr[0] = '-';
n = n * (-1);
}
while (n > 0)
{
if (n % base > 9)
nbr[i] = (n % base) + 'A' - 10;
else
nbr[i] = (n % base) + '0';
n /= base;
i--;
}
return (nbr);
}
char *ft_itoa_base_ux(unsigned long long n, int base)
{
int i;
char *nbr;
if (n == 0)
return (ft_strdup("0"));
i = ft_num_u(n, base);
nbr = (char *)malloc(sizeof(char *) * i + 1);
if (!nbr)
return (0);
nbr[i--] = '\0';
if (n < 0)
{
nbr[0] = '-';
n = n * (-1);
}
while (n > 0)
{
if (n % base > 9)
nbr[i] = (n % base) + 'a' - 10;
else
nbr[i] = (n % base) + '0';
n /= base;
i--;
}
return (nbr);
}