58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_itoa.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: hulamy <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/11/25 13:59:01 by hulamy #+# #+# */
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/* Updated: 2019/12/09 21:25:06 by hulamy ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** take an integer and give a string
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*/
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/*
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** #include <libc.h>
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**
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** char *ft_itoa(int n);
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**
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** int main(int ac, char **av)
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** {
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** if (ac == 0)
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** return (0);
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** else if (ac == 2)
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** printf("%s\n",ft_itoa(atoi(av[1])));
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** else
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** printf("%s\n",ft_itoa(0));
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** return 0;
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** }
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*/
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#include "libft.h"
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char *ft_itoa(int n)
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{
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char *str;
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int len;
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long int nbis;
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len = (n < 0) ? 2 : 1;
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nbis = n;
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while (nbis /= 10)
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len++;
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nbis = n;
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nbis *= (nbis < 0) ? -1 : 1;
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if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
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return (NULL);
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str[len] = '\0';
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str[--len] = nbis % 10 + '0';
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while (nbis /= 10)
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str[--len] = nbis % 10 + '0';
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if (n < 0)
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str[0] = '-';
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return (str);
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}
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