Your attention is invited to the tenth part of an e-book on undefined behavior. This is not a textbook, as it's intended for those who are already familiar with C++ programming. It's a kind of C++ programmer's guide to undefined behavior and to its most secret and exotic corners. The book was written by Dmitry Sviridkin and edited by Andrey Karpov.

C++ programmer's guide to undefined behavior: part 10 of 11

by Dmitry Sviridkin

From the article:

As you can see from the backtrace, the problematic object whose destructor caused the crash was a vector of strings in libgtest.so. In GTest sources, I found that this vector is a global variable where InitGoogleTest() stored recognized command line arguments. It's just a global variable declared in the compiled file and not presented in the header file. All seemed fine, except for one detail: it wasn't marked as static and was not wrapped in an anonymous namespace. So what? It worked, didn't it? Yeah, it worked. The trick was how the gMock library is built. Let's reproduce it step by step.