Author: Ben Shi Date: 2023-12-06T10:26:30+08:00 New Revision: 4699789249e6945c46cdbecd1fee493cbe553c66
URL: https://github.com/llvm/llvm-project/commit/4699789249e6945c46cdbecd1fee493cbe553c66 DIFF: https://github.com/llvm/llvm-project/commit/4699789249e6945c46cdbecd1fee493cbe553c66.diff LOG: [clang][analyzer][NFC] Supplement comments in `evalFtell` of StreamChecker (#74291) Added: Modified: clang/lib/StaticAnalyzer/Checkers/StreamChecker.cpp Removed: ################################################################################ diff --git a/clang/lib/StaticAnalyzer/Checkers/StreamChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/StreamChecker.cpp index a4799b5f762ca..925fc90e35543 100644 --- a/clang/lib/StaticAnalyzer/Checkers/StreamChecker.cpp +++ b/clang/lib/StaticAnalyzer/Checkers/StreamChecker.cpp @@ -1072,6 +1072,9 @@ void StreamChecker::evalFtell(const FnDescription *Desc, const CallEvent &Call, ProgramStateRef StateFailed = State->BindExpr( CE, C.getLocationContext(), SVB.makeIntVal(-1, C.getASTContext().LongTy)); + // This function does not affect the stream state. + // Still we add success and failure state with the appropriate return value. + // StdLibraryFunctionsChecker can change these states (set the 'errno' state). C.addTransition(StateNotFailed); C.addTransition(StateFailed); } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
