43 lines
1.3 KiB
C
43 lines
1.3 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: rzy <ry@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2026/08/23 23:34:29 by rzy #+# #+# */
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/* Updated: 2026/08/23 23:37:29 by rzy ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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static int ft_isspace(char c)
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{
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return (c == ' ' || (c >= '\t' && c <= '\r'));
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}
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int ft_atoi(const char *nptr)
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{
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int result;
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int sign;
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int i;
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result = 0;
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sign = 1;
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i = 0;
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while (ft_isspace(nptr[i]))
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++i;
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if (nptr[i] == '+' || nptr[i] == '-')
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{
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if (nptr[i] == '-')
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sign = -1;
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++i;
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}
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while (ft_isdigit(nptr[i]))
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{
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result = (result * 10) + (nptr[i] - '0');
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++i;
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}
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return (result * sign);
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}
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