two_stacks.c

#include "push_swap.h"

t_two_stacks	empty_two_stacks(void)
{
	static t_two_stacks	ts = NULL;

	if (!ts)
	{
		ts = malloc(sizeof(struct s_two_stacks));
		ts->a = dlist_empty_create(free, NULL, NULL);
		ts->b = dlist_empty_create(free, NULL, NULL);
		ts->args_number = 0;
	}
	return (ts);
}

void	two_stacks_destroy(t_two_stacks ts)
{
	dlist_destroy(ts->a);
	dlist_destroy(ts->b);
	free(ts);
}

void	values_p_swap(void **v1_, void **v2_)
{
	void	*tmp;

	tmp = *v1_;
	*v1_ = *v2_;
	*v2_ = tmp;
}

int	*intdub(int n)
{
	int	*int_ptr;

	int_ptr = malloc(sizeof(int));
	*int_ptr = n;
	return (int_ptr);
}

t_two_stacks	get_arguments_(int argc, char **argv)
{
	static t_two_stacks	ts = NULL;
	int					i;

	if (!ts)
	{
		ts = empty_two_stacks();
		ts->args_number = argc - 1;
		i = ts->args_number;
		while (i >= 1)
		{
			push_to_stack(ts->a, elem(atoi(argv[i]), 0));
			i--;
		}
		simplify(ts->a);
	}
	return (ts);
}