[Bug 2435] New: Typelib-generation - probable bug in hash-function

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=2435

           Summary: Typelib-generation - probable bug in hash-function
           Product: Wine
           Version: 20040813
          Platform: All
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-ole
        AssignedTo: wine-bugs(a)winehq.org
        ReportedBy: aag(a)computas.com


I haven't actually used wine - but used some of the sourcecode for wine to 
write my own functions for parsing existing win32 tlb's (MSFT)

If I rely on the hash-value generated by ctl2_hash_guid in typelib2.c,
I get a mismatch with the values in the typelib I examine.

If however I alter the return-statemet from
return (hash & 0xf) | ((hash & 0x10) & (0 - !!(hash & 0xe0)));
to
return (hash & 0xf) | (hash & 0x10);
the generated hash-values seems to be correct. I didn't quite figure out what 
the intention of the part I deleted was anyway...

Regards,
Åsmund Grøstad

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