#include "Stack.h"
#include "Exception.h"

template <class Etype>
void
Stack<Etype>::Push( const Etype & X )
{
    if( TopOfStack + 1 == Array.Length( ) )
	Array.Double( );

    Array[ ++TopOfStack ] = X;
}

template <class Etype>
void
Stack<Etype>::Pop( )
{
    EXCEPTION( IsEmpty( ), "Can't Pop an empty stack" );
    TopOfStack--;
}

template <class Etype>
const Etype &
Stack<Etype>::Top( ) const
{
    EXCEPTION( IsEmpty( ), "Can't Top an empty stack" );
    return Array[ TopOfStack ];
}