This is from 2011 or possibly earlier. Since that was around the same time ThreadSanitizer came out, I wonder how similar the two approaches are? I know lots of people use TSan nowadays but I haven’t heard of anyone using Relacy

This seems like it could be very useful -- a bit like like Spin [1] but natively for C++. But I'm confused: Is this "just" a header-only library, as claimed? No runtime tool is needed on top? Also, what's with the ($) syntax? I didn't think $ was a valid C++ identifier (even though it can appear in mangled symbol names) -- will that code even compile?

[1] https://en.m.wikipedia.org/wiki/SPIN_model_checker

Its list of supported platforms lists 32 bit but not 64 bit. And it refers to C++0x not C++11. I presume the article is old. Is this software still developed?

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