What is conditional compilation in C++?

What is conditional compilation in C++?

Conditional compilation in C++ allows you to include or exclude parts of code based on certain conditions, typically using preprocessor directives.

Can you give me an example of how to use it?

Sure! You can use #ifdef, #ifndef, #else, and #endif to conditionally compile code. For example:

#ifdef DEBUG
    std::cout << "Debug mode";
#endif

What is the purpose of using conditional compilation?

It helps in managing code for different environments, like debugging or production, without changing the source code.

Are there any drawbacks to using it?

Yes, excessive use can make code harder to read and maintain, as it introduces complexity with multiple compilation paths.