42_adjoly/42-2nd-piscine
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Adam Joly
2023-08-03 23:16:27 +02:00
parent 7f3254f1c5
commit a80c4d61d7
133 changed files with 4293 additions and 0 deletions
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37
finish/C04/ex03/ft_atoi.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: adjoly <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/07/19 09:27:06 by adjoly #+# #+# */
/* Updated: 2023/07/26 09:56:29 by adjoly ### ########.fr */
/* */
/* ************************************************************************** */
int ft_atoi(char *str)
{
int i;
int neg;
int result;
i = 0;
neg = 1;
result = 0;
while (str[i] == ' ' || (str[i] >= 9 && str[i] <= 13))
i++;
while (str[i] == '+' || str[i] == '-')
{
if (str[i] == '-')
neg *= -1;
i++;
}
while (str[i] >= '0' && str[i] <= '9')
{
result = (result * 10) + str[i] - 48;
i++;
}
result *= neg;
return (result);
}