What is the difference between compile-time and runtime checking in C++?

What is the difference between compile-time and runtime checking in C++?

Compile-time checking occurs during the compilation of the code, while runtime checking happens during program execution.

Can you give me examples of each?

Sure! An example of compile-time checking is type checking, where the compiler verifies variable types. Runtime checking includes error handling, like checking for null pointers.

Which one is generally preferred and why?

Compile-time checking is preferred for catching errors early, improving performance and reliability, while runtime checking is necessary for dynamic scenarios.

Are there any downsides to compile-time checking?

Yes, compile-time checking can be restrictive and may lead to less flexible code, as it requires all types to be known at compile time.