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ft_atoi.c
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ft_atoi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lgaudino <lgaudino@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/01/25 10:18:38 by lgaudino #+# #+# */
/* Updated: 2023/01/25 10:20:41 by lgaudino ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static int ft_isspace(char c)
{
return (c == ' ' || c == '\t' || c == '\n'
|| c == '\v' || c == '\f' || c == '\r');
}
int ft_atoi(const char *str)
{
int nbr;
int sign;
nbr = 0;
sign = 1;
while (ft_isspace(*str))
str++;
if (*str == '-')
{
str++;
sign = -1;
}
else if (*str == '+')
str++;
while (ft_isdigit(*str))
nbr = (nbr * 10) + (*str++ - '0');
return (nbr * sign);
}