[PATCH] D74760: [Analyzer] Fix for iterator modeling and checkers: handle negative numbers correctly

[Balogh, Ádám via Phabricator via cfe-commits]

baloghadamsoftware created this revision.
baloghadamsoftware added reviewers: NoQ, Szelethus.
baloghadamsoftware added a project: clang.
Herald added subscribers: steakhal, Charusso, donat.nagy, mikhail.ramalho, a.sidorin, rnkovacs, szepet, whisperity.

Currently, using negative numbers in iterator operations (additions and subractions) results in advancements with huge positive numbers due to an error. This patch fixes it.


Repository:
  rC Clang

https://reviews.llvm.org/D74760

Files:
  clang/lib/StaticAnalyzer/Checkers/Iterator.cpp
  clang/test/Analysis/iterator-modelling.cpp

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