第12章12arithmetic.h

C++上机课的习题答案

// Chapter 12 of C++ How to Program
// Debugging problem (arithmetic.h)

#ifndef ARITHMETIC_H
#define ARITHMETIC_H

template< class T >
class Arithmetic {
public:
   Arithmetic( T, T );
   T add() const;
   T sub() const;
   T mult() const;
   T div() const;
private:
   int val1, val2;
};

template< class T >
Arithmetic< T >::Arithmetic( T v1, T v2 )
{
   val1 = v1;
   val2 = v2;
}

template< class T >
T Arithmetic< T >::add() const { return val1 + val2; }

template< class T >
T Arithmetic< T >::sub() const { return val1 - val2; }

template< class T >
T Arithmetic< T >::mult() const { return val1 * val2; }

template< class T >
T Arithmetic< T >::div() const { return val1 / val2; }

#endif