Push_swap/reverse_rotate.c at main · Ismailelazzouzi/Push_swap · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   reverse_rotate.c                                   :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: isel-azz <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/05/11 07:50:14 by isel-azz          #+#    #+#             */
/*   Updated: 2024/05/11 07:50:16 by isel-azz         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

void	reverse_rotate(t_stack_needs **stack)
{
	t_stack_needs	*last_node;

	if (stack == NULL || *stack == NULL || stack_len(*stack) <= 1)
		return ;
	last_node = get_last_node(*stack);
	(*stack)->prev = last_node;
	last_node->next = *stack;
	*stack = (*stack)->prev;
	(*stack)->prev->next = NULL;
	(*stack)->prev = NULL;
}

void	reverse_rotate_a(t_stack_needs **a)
{
	reverse_rotate(a);
	write(1, "rra\n", 4);
}

void	reverse_rotate_b(t_stack_needs **b)
{
	reverse_rotate(b);
	write(1, "rrb\n", 4);
}

void	reverse_rotate_a_b(t_stack_needs **a, t_stack_needs **b)
{
	reverse_rotate(a);
	reverse_rotate(b);
	write(1, "rrr\n", 4);
}