Re: Possible MSVC8 bug?

From:

"Doug Harrison [MVP]" <dsh@mvps.org>

Newsgroups:

microsoft.public.vc.language

Date:

Wed, 29 Nov 2006 11:09:27 -0600

Message-ID:

<ebfrm2htlgiv4qg96jub40bnuhfp0mffff@4ax.com>

On 29 Nov 2006 08:01:34 -0800, burcarpat@gmail.com wrote:

Consider the following code:

--- cut from here ---
class Foo {
public:

   void bar() { }
   void bar(const int) { }

   int
   baz() {
       const int i = ( bar * 42 );
       return i;
   }

};
--- cut from here ---

This code compiles fine with no errors or warnings (at level 4) under
MSVC8 (VS2005), although, IMHO, it is not valid C++.

Comment out any of the bar()s and the compilation fails. Get rid of "*
42" and the compilation fails. Thus, it seems, MSVC8 is confused only
when there is ambiguity and when there is arithmetic involving a
numeric value (Instead of multiplication, try any other operation and
instead of int, try any other numeric type, it will still compile).

I have looked around a little bit but failed to find this issue
reported elsewhere. So, here are my questions:

1. Is this legal C++?

No.

2. If not, is this a known issue for MSVC8?

Apparently so.

If so, would it be
possible to refer me to a KB article?

Don't know of one, but this same problem was discussed here:

http://groups-beta.google.com/group/microsoft.public.dotnet.languages.vc/browse_frm/thread/a345b417cc43f074/89fe867428f79dcb?#89fe867428f79dcb

Per that thread, it's fixed in the upcoming VC2005 SP1. If you want to
investigate further, try the bug database:

http://connect.microsoft.com/feedback/default.aspx?SiteID=210

--
Doug Harrison
Visual C++ MVP