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From: "bangerth at dealii dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/32549] Wrong template instance resolution among multiple object files.
Date: Sat, 08 Sep 2007 23:53:00 -0000	[thread overview]
Message-ID: <20070908235246.7937.qmail@sourceware.org> (raw)
In-Reply-To: <bug-32549-14781@http.gcc.gnu.org/bugzilla/>



------- Comment #4 from bangerth at dealii dot org  2007-09-08 23:52 -------
The code is definitely invalid. The two typedefs declare two types with
external linkage. This is an ODR violation making the code invalid. The
standard doesn't require compilers to produce an error for a very good
reason: it is almost impossible to detect this without support from a linker
that understands all wrinkles and depths of the C++ language.


-- 

bangerth at dealii dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bangerth at dealii dot org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32549


  parent reply	other threads:[~2007-09-08 23:53 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-29 17:44 [Bug c++/32549] New: " opichals at seznam dot cz
2007-06-29 17:46 ` [Bug c++/32549] " opichals at seznam dot cz
2007-06-29 19:46 ` pinskia at gcc dot gnu dot org
2007-06-30 15:05 ` opichals at seznam dot cz
2007-09-08 23:53 ` bangerth at dealii dot org [this message]
2007-09-17 11:36 ` opichals at seznam dot cz

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