C++ Xcode assert evaluated in release

I'm quite new to Xcode (and Mac in general). I started a little iPhone project - coding in C++ whatever possib开发者_StackOverflowle - and just noted that my assert(); commands are executed also in release mode.

Is this a known problem and how do I solve it properly?

thanks!

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Xcode does not add -DNDEBUG for release mode automatically.

To add it, go to Project | Edit Project Settings. You need to be on the Build tab and choose Configuration Release. Add a new Preprocessing Macro of NDEBUG.