Has anyone ever had a use for the __COUNTER__ pre-processor macro?

Question

The __COUNTER__ symbol is provided by VC++ and GCC, and gives an increasing non-negative integral value each time it is used.

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Answer 1

In our code we forgot to add testcases for some of our products. I implemented now some macros so we can assert at compile time that we have testcases for each product that we are adding or removing.