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ft_atoi.c
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ft_atoi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: puttsche <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2016/11/12 20:31:10 by puttsche #+# #+# */
/* Updated: 2016/11/13 06:57:17 by puttsche ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
int ft_atoi(const char *nptr)
{
int x;
int nbr;
int neg;
x = 0;
nbr = 0;
neg = 1;
while ((nptr[x] == '\n') || (nptr[x] == '\f') || (nptr[x] == '\r') ||
(nptr[x] == '\t') || (nptr[x] == '\v') || (nptr[x] == ' '))
x++;
if ((nptr[x] == '-') || (nptr[x] == '+'))
{
if (nptr[x] == '-')
neg = -1;
x++;
}
while ((nptr[x]) && ((nptr[x] >= '0') && (nptr[x] <= '9')))
{
nbr = nbr * 10 + nptr[x] - '0';
x++;
}
return (neg * nbr);
}