Yesterday I encountered a bug in a library I'm working on that only seemed to occur when compiled in release mode. I was scratching my head for a little while but suddenly it occured to me when I encountered the following line:
Debug.Assert(reader.Read() == '-'); // Consume token
The problem with the above statement is that calls to
Debug.Assert are conditional,
so when running under a non-debug build, the call won't be made and the expression
won't be evaluated.
So what lessons can we learn from this?
Never mutate state in a