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Date: Sat, 23 Apr 2005 20:27:00 -0000
From: "tneumann at pi3 dot informatik dot uni-mannheim dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20050423202713.21181.tneumann@pi3.informatik.uni-mannheim.de>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug c++/21181] New: namespace lookup error message misleading
X-Bugzilla-Reason: CC
X-SW-Source: 2005-04/txt/msg03332.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

Consider the following C++ code:

class A;
namespace X {
class B { friend class A; };
}
using namespace X;
class A {};
A a;

In the last line the compiler complains that A is undefined. After reading the 
release notes I understamd what happens (although I'm surprised. E.g. Comeau 
accepts the code). 
However the error message is very misleading: The problem is not that A is 
undefined but that X::A is undefined! This is very confusing for users.

-- 
           Summary: namespace lookup error message misleading
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tneumann at pi3 dot informatik dot uni-mannheim dot de
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21181