P64 E2(b)

#include<iostream>

using namespace std;

int main()

Error_code copy_stack(Stack &dest,Stack &source);

{

Error_code detected=success;

Stack temp;

Stack_entry item;

while(detected==success&&!source.empty()){

detected=source.top(item);

detected=source.pop();

if(detevted==success)detected=temp.push(item);}

while(detected==success&&!temp.empty())

detected=temp.top(item);

detected=temp.pop();

if(detevted==success)detected=source.push(item);

if(detevted==success)detected=dest.push(item);

}

return detected;}