42 lines
1.3 KiB
C
42 lines
1.3 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: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2018/04/08 11:20:12 by tmaze #+# #+# */
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/* Updated: 2018/05/05 16:48:49 by tmaze ### ########.fr */
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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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unsigned long mult;
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int nb_nbr;
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int sign;
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unsigned long nbr;
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char *ret;
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mult = 10;
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nb_nbr = 1;
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nbr = ft_abs(n);
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sign = (n < 0);
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while (mult <= nbr && (nb_nbr++))
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mult *= 10;
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nb_nbr += sign;
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if ((ret = ft_strnew(nb_nbr)) == NULL)
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return (NULL);
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nb_nbr = 0;
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if (sign && (++nb_nbr))
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ret[0] = '-';
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while (mult > 1)
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{
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ret[nb_nbr++] = '0' + ((nbr % mult) / (mult / 10));
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mult /= 10;
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}
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return (ret);
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}
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