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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* stack.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/01/19 06:37:44 by cacharle #+# #+# */
/* Updated: 2020/01/19 07:06:58 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "common.h"
void stack_swap(t_stack *stack)
{
int first;
int second;
if (stack_length(stack) < 2)
return ;
first = stack_peek(stack);
stack_pop(stack);
second = stack_peek(stack);
stack_pop(stack);
stack_push(stack, first);
stack_push(stack, second);
}
void stack_push_to(t_stack *from, t_stack *to)
{
int tmp;
if (stack_empty(from))
return ;
tmp = stack_peek(from);
stack_pop(from);
stack_push(to, tmp);
}
void stack_rotate(t_stack *stack)
{
int tmp;
if (stack_length(stack) < 2)
return ;
tmp = stack_peek(stack);
ft_memmove(stack->elements + 1, stack->elements,
(stack_length(stack) - 1) * sizeof(int));
stack->elements[0] = tmp;
}
void stack_reverse_rotate(t_stack *stack)
{
int tmp;
if (stack_length(stack) < 2)
return ;
tmp = stack->elements[0];
ft_memmove(stack->elements, stack->elements + 1,
(stack_length(stack) - 1) * sizeof(int));
stack->elements[stack->top] = tmp;
}
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