ft_atoi.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_atoi.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rgerdzhi <rgerdzhi@student.42barcelon      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/07/03 17:44:46 by rgerdzhi          #+#    #+#             */
/*   Updated: 2024/07/14 01:39:04 by rgerdzhi         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
#include "libft.h"

int	ft_atoi(const char *nptr)
{
	int		result;
	int		sign;

	result = 0;
	sign = 1;
	while (*nptr == ' ' || (*nptr >= '\t' && *nptr <= '\r'))
		nptr++;
	if (*nptr == '-' || *nptr == '+')
	{
		if (*nptr == '-')
			sign = -1;
		nptr++;
	}
	while (*nptr >= '0' && *nptr <= '9')
	{
		result = result * 10 + (*nptr - '0');
		nptr++;
	}
	return (result * sign);
}
/*
int main () 
{
   int val;
   char *str = NULL; //"      -15yyh6abdc  ";
   val = ft_atoi(str);
   printf("My value = %d\n", val);
   val = atoi(str);
   printf("Ctrl value = %d\n", val);
   return(0);
}
*/