From: Gregg N 

I cut and pasted from the actual file I compiled, but for some reason it
ended up missing the first line. I will try again:

#include 

template 
class Operands
{
public:
    Operands(T a, T b) : a_(a), b_(b) { }
    Operands(T a) : a_(a), b_(T()) { }
    ~Operands() { /* Nothing to do */}

    T Add() { return a_ + b_; }
    T Subtract() { return a_ - b_; }
    T Divide() { return a_ / b_; }
    T Multiply() { return a_ * b_; }

    void ShowOps()
    {
           std::cout << "a=" << a_ << ",
b=" << b_ << std::endl;
    }

    void Display()
    {
          ShowOps();
       std::cout << "   Sum:        " << Add() << '\n'
                 << "   Difference: " << Subtract()
<< '\n'
                 << "   Product:    " << Multiply()
<< '\n';

       if (b_ != 0)
          std::cout << "   Quotient:   " << Divide()
<< '\n';
    }

private:
    T a_;
    T b_;
};

int main() {
        Operands op1(1);
        op1.Display();
        Operands op2(5, 6);
        op2.Display();
        Operands op3(3.14, 2.718);
        op3.Display();
}

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