Comment by PVS-Studio

So I want to add an explanation. As I see from the comments, many of you thought that the PVS-Studio analyzer warns about a function's unused argument. That's not quite so. Or, to be precise, this is so, but the analyzer processes this case smarter than most linters or compilers. Continue: https://karpov2007.medium.com/a-few-more-words-about-the-pvs...