Declaring a + operator in C ++

Question

I have a Samp class. In Samp.cpp, I can define / declare a function like

Samp& operator+(Samp& other) { std::cout << "something"; return other; } 

What is this function? What should I call it?

Answer 1

This is actually unary + , you call it like this:

 Samp s; +s; // <-- here