On: Clang vs. Clang

[ncruces]

  #define DEBUG i<num+100

The example is silly, but you should get the point. DEBUG can be anything.

[robinsonb5 → ncruces]

Fair point, however your example is a runtime check, so shouldn't result in dead code.

(And if DEBUG is a static define then it still won't result in dead code since the preprocessor will remove it, and the compiler will never actually see it.)

EDIT: and now I realise I misread the first example all along - I read "#if (DEBUG)" rather than "if (DEBUG)".