35 lines
1.2 KiB
C
35 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: gbrochar <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2015/11/27 19:18:43 by gbrochar #+# #+# */
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/* Updated: 2016/02/10 17:16:28 by gbrochar ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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int ft_atoi(const char *str)
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{
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long result;
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long sign;
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char *str2;
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str2 = (char *)str;
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result = 0;
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while (ft_isspace(*str2))
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str2++;
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sign = (*str2 == '-') ? -1 : 1;
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if (*str2 == '-' || *str2 == '+')
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str2++;
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while (*str2 >= '0' && *str2 <= '9')
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{
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result = (result * 10) + (*str2 - '0');
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str2++;
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}
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return ((int)(result * sign));
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}
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