1   // Fig. 12.4: fig12_04.cpp
2   // Test driver for Stack template.
3   // Function main uses a function template to manipulate
4   // objects of type Stack< T >.
5   #include <iostream.h>
6   #include "tstack1.h"
7   
8   // Function template to manipulate Stack< T >
9   template< class T >
10  void testStack( 
11     Stack< T > &theStack,   // reference to the Stack< T >
12     T value,                // initial value to be pushed
13     T increment,            // increment for subsequent values
14     const char *stackName ) // name of the Stack< T > object
15  {
16     cout << "\nPushing elements onto " << stackName << '\n';
17  
18     while ( theStack.push( value ) ) { // success true returned
19        cout << value << ' ';
20        value += increment;
21     }
22  
23     cout << "\nStack is full. Cannot push " << value 
24          << "\n\nPopping elements from " << stackName << '\n';
25  
26     while ( theStack.pop( value ) )  // success true returned
27        cout << value << ' ';
28  
29     cout << "\nStack is empty. Cannot pop\n";
30  }
31  
32  int main()
33  {
34     Stack< double > doubleStack( 5 );   
35     Stack< int > intStack;
36  
37     testStack( doubleStack, 1.1, 1.1, "doubleStack" );
38     testStack( intStack, 1, 1, "intStack" );
39  
40     return 0;
41  }