C++ Signal/Slot vs Callbacks

What is the difference between C++ signal/slot and callbacks?

C++ signal/slot is a mechanism for communication between objects, while callbacks are functions passed as arguments.

Can you give an example of how to use signals and slots in C++?

Sure! In Qt, you can connect a signal from one object to a slot in another using the connect() function.

When should I use signals and slots instead of callbacks?

Use signals and slots for decoupled communication in GUI applications, while callbacks are simpler for direct function calls.

Are there performance differences between the two?

Yes, signals and slots can introduce overhead due to their flexibility, while callbacks are generally faster.