Overloading assignment operator in a class template that can cast to another template type

Question

#ifndef NUMBER_HPP
#define NUMBER_HPP

template 
class Number
{
public:
  Number( T value ) : m_value( value )
  {
  }

  T value() const
  {
    retu         


        

Answer 1

You have some of the Ts in the wrong place. It should be

template 
Number& operator=( const Number& number )
{
    m_value = number.value();
    return *this;
}

This will let you do

Integer a(4);
Float b(6.2f);

a = b;

cout << a.value() << endl;

and it will print 6, a behaviour similar to that of the int and float types you are imitating.