Practical Uses for the “Curiously Recurring Template Pattern”

Question

What are some practical uses for the \"Curiously Recurring Template Pattern\"? The \"counted class\" example commonly shown just isn\'t a convincing example to me.

Answer 1

Generally it is used for polymorphic-like patterns where you do not need to be able to choose the derived class at runtime, only at compile time. This can save the overhead of the virtual function call at runtime.