38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_atoi.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: gtertysh <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2016/10/31 10:27:11 by gtertysh #+# #+# */
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/* Updated: 2016/11/07 20:27:40 by gtertysh ### ########.fr */
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/* */
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/* ************************************************************************** */
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int ft_atoi(char *str)
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{
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int numb;
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int is_negative;
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numb = 0;
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is_negative = 0;
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while (*str < 33)
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str++;
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if (*str == '-')
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{
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is_negative = 1;
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str++;
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}
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if (*str == '+')
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str++;
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while (*str >= '0' && *str <= '9' && *str != '\0')
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{
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numb = numb * 10 + *str - '0';
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str++;
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}
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if (is_negative)
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return (-numb);
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return (numb);
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}
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