In general I think the base class should define a operator== overload (internally or via friend class doesn't matter) which check typeid equality and calls an abstract virtual "equals" function …

Dec 12, 2010 · The General Syntax of Operator Overloading in C++ The Three Basic Rules of Operator Overloading in C++ The Decision between Member and Non-member Common …

Class& operator @= (const Class& rhs); That is, the function takes its parameter by const reference (because it doesn't modify it), then returns a mutable reference to the object.

81 Assuming that we're talking about overloading operator << for all classes derived from std::ostream to handle the Matrix class (and not overloading << for Matrix class), it makes …

I understand most operator overloading, with the exception of the member access operators ->, .*, ->* etc. In particular, what is passed to these operator functions, and what should be returned?

Jan 3, 2016 · C++ added a (slightly confusing) second use for this, and overloaded it on ostream to mean "output" to the stream. You can do whatever you like within an overloaded operator - …

Feb 15, 2025 · In a header file I defined a struct Record. I would like to use it for possible sorting so I want to overload the less operator. Here are three ways I noticed in various code. I …

Apr 10, 2015 · In C++ there's only one difference between a struct and a class: in a struct the default visibility is public while in a class it is private. Other than that you can do anything you …

Possible Duplicate: What are the basic rules and idioms for operator overloading? What is the differences between the following ways to overload operator== ? // stroustrup way friend bool …

To prevent this, I overload the | and & operators, but I can't figure out how to overload the |= operator on an enum. For a class you'd simply put the operator definition in the class, but for …