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ft_atoi.c
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ft_atoi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dalcabre <dalcabre@student.42urduliz.co +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/12/11 15:08:02 by dalcabre #+# #+# */
/* Updated: 2024/01/09 11:20:10 by dalcabre ### ########.fr */
/* */
/* ************************************************************************** */
int ft_atoi(const char *str)
{
int result;
int sign;
int i;
result = 0;
sign = 1;
i = 0;
while (str[i] == ' ' || str[i] == '\n' || str[i] == '\t' || str[i] == '\r'
|| str[i] == '\v' || str[i] == '\f')
{
i++;
}
if (str[i] == '-' || str[i] == '+')
{
if (str[i] == '-')
sign = -sign;
i++;
}
while (str[i] >= '0' && str[i] <= '9')
{
result = (result * 10) + (str[i] - '0');
i++;
}
return (result * sign);
}
/*
#include <studio.h>
int main(void)
{
const char *str = " -----+---+1234ab567";
int number = ft_atoi(str);
printf("%d\n", number);
return (0);
}
*/