stack_push.c

void Stack::push(int d)
{
	// creating a new node
	node *temp;
	temp = new node();
  
	// setting data to it
	temp->data = d;
  
	// add the node in front of list
	if(front == NULL)
	{
		temp->next = NULL;
	}
	else
	{
		temp->next = front;
	}
	front = temp;
}