Zero, one, two, Freddy’s coming for you

This post continues the series of articles, which can well be called “horrors for developers”. This time it will also touch upon a typical pattern of typos related to the usage of numbers 0, 1, 2. The language you’re writing in doesn’t really matter: it can be C, C++, C#, or Java. If you’re using constants 0, 1, 2 or variables’ names contain these numbers, most likely, Freddie will come to visit you at night. Go on, read and don’t say we didn’t warn you.

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Remember that an exception in the destructor is dangerous

This issue was found in LibreOffice project. The error is detected by the following¬†diagnostic: V509 The ‘dynamic_cast<T&>’ operator should be located inside the try..catch block, as it could potentially generate an exception. Raising exception inside the destructor is illegal. Continue reading