push_swap_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   push_swap_utils.c                                  :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tkang <tkang@student.42seoul.kr>           +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/06/30 15:13:44 by tkang             #+#    #+#             */
/*   Updated: 2022/06/30 15:13:45 by tkang            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

int	my_atoi(const char *str)
{
	size_t	i;
	long	result;
	long	op;

	i = 0;
	result = 0;
	op = 1;
	while ((9 <= str[i] && str[i] <= 13) || str[i] == ' ')
		i++;
	if (str[i] == '-')
		op = -1;
	if (str[i] == '-' || str[i] == '+')
		i++;
	while ('0' <= str[i] && str[i] <= '9')
	{
		result = (result * 10) + (str[i] - '0');
		i++;
	}
	if (str[i])
		exit_trap(1);
	if ((result > 2147483647 && op == 1) || (result > 2147483648 && op == -1))
		exit_trap(1);
	return (result * op);
}

void	two_d_free(char **str)
{
	size_t	i;

	i = 0;
	while (str[i])
	{
		free(str[i]);
		i++;
	}
	free(str);
}

void	init_doubly(t_DoublyList **dList, char *argv[], int argc)
{
	int		i;
	int		j;
	char	**temp;

	*dList = create_doubly_list();
	i = 0;
	while (++i < argc)
	{
		temp = ft_split(argv[i], ' ');
		j = 0;
		if (!temp[j])
			exit_trap(1);
		while (temp[j])
		{
			if (!add_right_dl_element(*dList, my_atoi(temp[j])))
				exit_trap(0);
			j++;
		}
		two_d_free(temp);
	}
	(*dList)->size = (*dList)->cnt;
}

void	exit_trap(int flag)
{
	if (flag)
		write(2, "Error\n", 6);
	exit(1);
}