62 lines
1.4 KiB
C
62 lines
1.4 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: apommier <alexpomms@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2020/12/08 18:20:19 by apommier #+# #+# */
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/* Updated: 2020/12/14 10:00:58 by apommier ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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static char *fill(long n, int j, int minus)
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{
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char *dest;
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j += minus;
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dest = (char*)malloc(sizeof(char) * (j + 1));
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if (dest == 0)
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return (0);
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dest[j] = 0;
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if (n == 0)
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dest[j - 1] = '0';
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while (n)
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{
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dest[j - 1] = n % 10 + '0';
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j--;
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n /= 10;
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}
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if (minus)
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dest[j - 1] = '-';
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return (dest);
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}
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char *ft_itoa(int n)
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{
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long i;
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long k;
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int j;
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int minus;
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k = n;
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minus = 0;
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i = 1;
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j = 0;
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if (k < 0)
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{
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minus = 1;
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k = k * -1;
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}
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while (k >= i - 1)
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{
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i = i * 10;
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j++;
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}
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if (k == 9)
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j = 1;
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return (fill(k, j, minus));
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}
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