http://llvm.org/bugs/show_bug.cgi?id=13673
Bug #: 13673
Summary: false positive: division by zero with unsigned
denominator
Product: clang
Version: 3.1
Platform: PC
OS/Version: FreeBSD
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 9098
--> http://llvm.org/bugs/attachment.cgi?id=9098
division by zero false positive example code.
The following attachment produces a false positive for division by zero if 'b'
is declared to be 'unsigned int' but no warning is generated if 'b' is declared
to be 'int'.
> clang --analyze cc.c
cc.c:18:8: warning: Division by zero
c = a / b[i];
~~^~~~~~
1 warning generated.
> clang --version
clang version 3.1 (branches/release_31)
Target: i386-portbld-freebsd8.3
Thread model: posix
>
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