vsavchenko marked an inline comment as done.
vsavchenko added inline comments.


================
Comment at: clang/lib/StaticAnalyzer/Core/RangeConstraintManager.cpp:373
+  ++Upper;
+  --Lower;
+
----------------
xazax.hun wrote:
> Sorry if my question is dumb, but I do not really have a mental model at this 
> point about where do we actually handle types and overflows. Will this method 
> work when we delete the last or the first element of the full range of a type?
> 
> I think having unit tests would be a great way to make this clear. I always 
> felt that the solver is actually something that should be really easy to test 
> separately and those tests would also help a lot to understand how the solver 
> is actually working. 
> Sorry if my question is dumb...
No problem at all, I also had this question when I looked at that.

> where do we actually handle types and overflows
`APInt` class basically does it all for us in terms of overflows, number of 
bits, and signedness.

> I think having unit tests would be a great way to make this clear
I am onboard! I will add a framework for testing the solver in later patches.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D82381/new/

https://reviews.llvm.org/D82381



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