During debugging, there's often the need to temporarily disable a few lines of code to see the effect it has. I'm certainly not going back-and-forth with source

During debugging, there's often the need to temporarily disable a few lines of code to see the effect it has. I'm certainly not going back-and-forth with source control for something so trivial. That said, macros do make sense in this case- you can #define a single flag (e.g. FLAG) as a 0 or 1 and simply #if FLAG ... #endif, but it's certainly more typing to set up.