40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_atoi.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2020/11/29 00:09:17 by apommier #+# #+# */
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/* Updated: 2022/01/18 06:50:22 by apommier ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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long ft_atoi(const char *nptr)
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{
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int i;
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long nbr;
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long minus;
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minus = 1;
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nbr = 0;
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i = 0;
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while ((nptr[i] >= 9 && nptr[i] <= 13) || nptr[i] == 32)
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i++;
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if (nptr[i] == '+')
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i++;
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else if (nptr[i] == '-')
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{
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i++;
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minus = -1;
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}
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while (nptr[i] >= '0' && nptr[i] <= '9')
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{
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nbr = nbr * 10 + nptr[i] - '0';
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i++;
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}
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return (minus * nbr);
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}
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