exec_func.c

#include "monty.h"

/**
 * exec_push - pushes an element to the stack.
 * @stack: pointer to stack
 * @line_number: line number
 * @data_arg: data arg
 */
void exec_push(stack_t **stack, unsigned int line_number, char *data_arg)
{
	if (global->mode)
	{
		push(stack, line_number, data_arg);
	}
	else
		enqueue(stack, line_number, data_arg);
}

/**
 * exec_pall - prints all the values on the stack
 *	starting from the top of the stack.
 * @stack: pointer to stack
 * @line_number: line number
 * @data_arg: data arg
 */
void exec_pall(stack_t **stack, unsigned int line_number, char *data_arg)
{
	stack_t *current = *stack;
	(void)line_number;
	(void)data_arg;

	while (current)
	{
		printf("%d\n", current->n);
		current = current->next;
	}
}

/**
 * exec_pint - print top opcode function
 * @stack: pointer to stack
 * @line_number: line number
 * @data_arg: data arg
 */
void exec_pint(stack_t **stack, unsigned int line_number, char *data_arg)
{
	(void)data_arg;

	if (*stack)
		printf("%d\n", (*stack)->n);
	else
	{
		fprintf(stderr, "L%d: can't pint, stack empty\n", line_number);
		exit_failure(global);
	}
}

/**
 * exec_pop - pop opcode function
 * @stack: pointer to stack
 * @line_number: line number
 * @data_arg: data arg
 */
void exec_pop(stack_t **stack, unsigned int line_number, char *data_arg)
{
	stack_t *del;

	(void)data_arg;

	if (stack == NULL || *stack == NULL)
	{
		fprintf(stderr, "L%d: can't pop an empty stack\n", line_number);
		exit_failure(global);
	}
	del = *stack;

	if (del->next != NULL)
	{
		*stack = del->next;
		del->next->prev = del->prev;
	}
	else
		*stack = NULL;

	free(del);
}

/**
 * exec_nop - does nothing
 * @stack: stack pointer
 * @line_number: line number
 * @data_arg: data arg
 */
void exec_nop(stack_t **stack, unsigned int line_number, char *data_arg)
{
	(void)stack;
	(void)line_number;
	(void)data_arg;
}