How to overload operators with a built-in return type?

Question

Say I have a class, that wraps some mathematic operation. Lets use a toy example

class Test
{
public:
   Test( float f ) : mFloat( f ), mIsInt( false ) {}

   fl         


        

Answer 1

Using template specialization:

class Config {
    template
    void setValue(const std::string& index, T& value); //sets the value if available
};

template
void Config::setValue(const std::string& index, float& value){...} //only sets float values

template
void Config::setValue(const std::string& index, int& value){...} //only sets int values;