rotate_items.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   rotate_items.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mohkhald <mohkhald@student.1337.ma>        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/04/01 23:06:06 by mohkhald          #+#    #+#             */
/*   Updated: 2025/04/03 01:12:14 by mohkhald         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

void	ft_rotate(t_stack **stack)
{
	t_stack	*tmp;
	t_stack	*end;

	if (!*stack || !(*stack)->next)
		return ;
	tmp = *stack;
	*stack = (*stack)->next;
	end = *stack;
	while (end->next)
		end = end->next;
	end->next = tmp;
	tmp->next = NULL;
}

void	ra(t_stack **a)
{
	ft_rotate(a);
	write(1, "ra\n", 3);
}

void	rb(t_stack **b)
{
	ft_rotate(b);
	write(1, "rb\n", 3);
}

void	ra_rb(t_stack **a, t_stack **b)
{
	ft_rotate(a);
	ft_rotate(b);
	write(1, "rr\n", 3);
}