push_swap/srcs/ps_rerot.c
2019-03-26 15:37:11 +01:00

47 lines
1.4 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ps_rerot.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/02/21 16:32:04 by tmaze #+# #+# */
/* Updated: 2019/03/26 15:06:28 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "push_swap.h"
void ps_rerot(t_psdata *data, char c)
{
t_stack *s;
t_stack *tmp;
size_t *size;
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->next;
while (tmp->next != NULL && (tmp = tmp->next))
s = s->next;
s->next = NULL;
(*size)--;
ps_stkpsh(data, c, tmp);
}
else if (s != NULL && *size == 2)
ps_swap(data, c);
}
void ps_rrerot(t_psdata *data)
{
ps_rerot(data, 'a');
ps_rerot(data, 'b');
}