Difference Quote by Scott Meyers
“A non-virtual function says, you have to do this and you must do it this way. A virtual function says you have to do this, but you don't have to do it this way. That's their fundamental difference.”
About This Quote
Source Book: Effective C++ by Scott Meyers, 2005
Non‑virtual functions enforce a specific implementation; virtual functions enforce an interface while allowing varied implementations.
In simple terms: Non‑virtual fixes code; virtual allows flexibility.
Key Takeaway
Choose virtual when behavior may vary.
Themes
programming
design
polymorphism
Mood
technical
analytical
Type
educational
technical
When to use this quote
- software design
- API design
- framework development
Key Concepts
encapsulation
inheritance
interface
Questions to Reflect On
- When should you prioritize flexibility over performance?
- Do you need to change implementations later?
A Different Perspective
Virtual functions can introduce runtime overhead.
