push_swap/sources/push.c
2024-04-20 14:48:16 +02:00

56 lines
1.6 KiB
C
Executable file

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* push.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/02/13 12:08:03 by rparodi #+# #+# */
/* Updated: 2024/03/06 11:55:32 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "../includes/push_swap.h"
static int push(t_list **stack_to, t_list **stack_from)
{
t_list *tmp;
t_list *head_to;
t_list *head_from;
if (ft_lstsize(*stack_from) == 0)
return (-1);
head_to = *stack_to;
head_from = *stack_from;
tmp = head_from;
head_from = head_from->next;
*stack_from = head_from;
if (!head_to)
{
head_to = tmp;
head_to->next = NULL;
*stack_to = head_to;
}
else
{
tmp->next = head_to;
*stack_to = tmp;
}
return (0);
}
int pa(t_list **stack_a, t_list **stack_b)
{
if (push(stack_a, stack_b) == -1)
return (-1);
write(1, "pa\n", 3);
return (0);
}
int pb(t_list **stack_a, t_list **stack_b)
{
if (push(stack_b, stack_a) == -1)
return (-1);
write(1, "pb\n", 3);
return (0);
}