New subject: [Bug 19210] expr_alloc_uconstant() is not used

6 Jul 2009


      http://bugs.winehq.org/show_bug.cgi?id=19210
Summary: expr_alloc_uconstant() is not used
           Product: Wine
           Version: 1.1.25
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: source, winelib
          Severity: normal
          Priority: P2
         Component: winedbg
        AssignedTo: wine-bugs@winehq.org
        ReportedBy: fgouget@codeweavers.com
programs/winedbg/expr.c defines both an  expr_alloc_sconstant() and an
expr_alloc_uconstant() function. However:
* expr_alloc_uconstant() is not used anywhere. So at first sight it should be
removed.
 * But expr_alloc_sconstant() is used to allocate tNUM constant which, as far
as I can see, are unsigned constants.
 * expr_alloc_sconstant() is used nowhere else.
So something is wrong there.
This is also related to EXPR_TYPE_U_CONST vs. EXPR_TYPE_S_CONST.
Possible fixes:
 * Modify the lexer to only return unsigned constants (since that's all it can
match), and then get rid of expr_alloc_sconstant() and EXPR_TYPE_S_CONST.
 * Modify the lexer to return both signed and unsigned constants as
appropriate.
In either case it will likely require modifications in the expression
computation package as it only knows how to deal with signed integers.
See also this thread:
http://www.winehq.org/pipermail/wine-devel/2009-January/072074.html
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[Bug 19210] New: expr_alloc_uconstant() is not used