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https://bugzilla.novell.com/show_bug.cgi?id=485750


           Summary: x11-input-wacom-0.8.2-3.6: undefined code
    Classification: openSUSE
           Product: openSUSE 11.2
           Version: Factory
          Platform: All
        OS/Version: openSUSE 11.1
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: X.Org
        AssignedTo: bnc-team-xorg-bugs@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: dcb314@xxxxxxxxxxx
         QAContact: xorg-maintainer-bugs@xxxxxxxxxxxxxxxxxxxxxx
          Found By: ---


I just tried to compile Factory package x11-input-wacom-0.8.2-3.6
and the compiler said

/wcmXCommand.c:847: warning: operation on 'sNum' may be undefined

The source code is

        return priv->tvResolution[sNum++] | (priv->tvResolution[sNum] << 16);

I have read the code and I agree with the compiler.

There is no requirement that an expression is evaluated left
to right.

Suggest code rework. Perhaps

        return priv->tvResolution[sNum] | (priv->tvResolution[sNum + 1] << 16);

might work.

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