/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ps_swap.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/02/21 14:06:40 by tmaze             #+#    #+#             */
/*   Updated: 2019/03/06 12:02:03 by tmaze            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

void	ps_swap(t_psdata *data, char c)
{
	t_stack	**s;
	size_t	size;
	t_stack	*tmp;

	if (c == 'a')
		s = &(data->a);
	if (c == 'a')
		size = data->size_a;
	else if (c == 'b')
		s = &(data->b);
	if (c == 'b')
		size = data->size_b;
	if (s != NULL && size >= 2)
	{
		tmp = *s;
		*s = (*s)->next;
		tmp->next = (*s)->next;
		(*s)->next = tmp;
	}
}

void	ps_sswap(t_psdata *data)
{
	ps_swap(data, 'a');
	ps_swap(data, 'b');
}