[PATCH] D75682: [Analyzer][StreamChecker] Introduction of stream error handling.

[Balázs Kéri via Phabricator via cfe-commits]

balazske created this revision.
Herald added subscribers: cfe-commits, martong, Charusso, gamesh411, dkrupp, donat.nagy, Szelethus, mikhail.ramalho, a.sidorin, szepet, baloghadamsoftware, xazax.hun.
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balazske added a comment.

For older discussion see this:
https://reviews.llvm.org/D75356

Functions `feof` and `ferror` are added to show how the stream error flags are used and to make tests possible.


A new field is added to the stream state to store the actual error.
Function `fseek` is implemented to set the error state.
(More are to be added later.)
Modeling of stream error state handling functions is added.

(`clearerr` is not done yet but should follow.)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D75682

Files:
  clang/lib/StaticAnalyzer/Checkers/StreamChecker.cpp
  clang/test/Analysis/Inputs/system-header-simulator.h
  clang/test/Analysis/stream-error.c
  clang/test/Analysis/stream.c

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