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List:       kdevelop-bugs
Subject:    [Bug 185824] New: Code completion tokens concatenate incorrectly
From:       Lior Mualem <lior.m.kde () gmail ! com>
Date:       2009-02-28 19:08:44
Message-ID: bug-185824-40295 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=185824

           Summary: Code completion tokens concatenate incorrectly
           Product: kdevelop
           Version: unspecified
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdevelop-bugs@kdevelop.org
        ReportedBy: lior.m.kde@gmail.com


Version:           4 (using KDE 4.2.0)
Compiler:          gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu12) 
OS:                Linux
Installed from:    Ubuntu Packages

Consider this code:
--------------
#define DO_CAT(a, b) DO_CAT_I(a, b)
#define DO_CAT_I(a, b) a ## b

#define VAL_KIND A

const int Value_A = 1;
const int Value_VAL_KIND = 2;

const int v1 = DO_CAT(Value_, VAL_KIND);
const int v2 = DO_CAT_I(Value_, VAL_KIND);
--------------

v1 translates to "1"(Value_A) which is good.
v2 also translates to "1"(Value_A), this is not good. 
It should translate to "2" which is Value_VAL_KIND.

When concatenating tokens, macro expansion should only occur when we have
another indirection like when DO_CAT calls DO_CAT_I, the VAL_KIND macro is
expanded.

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