error C2039: '__ctor' : is not a member of 'UpdateMode'

Using VC++ 6.0, if I comment out the StrToUpdateMode() function it compiles fine, but otherwise I get:

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error C2039: '__ctor' : is not a member of 'UpdateMode'

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I have no idea what it's talking about?

Code:

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namespace UpdateMode
{
        enum UpdateMode
        {
                AddOnly                = 0,        /**< Only add record if it doesn't already exist. */
                UpdateOnly        = 1,        /**< Only update record if it exists (i.e. don't add). */
                AddOrUpdate        = 2,        /**< Update record if it exists, otherwise add a new record. */
                Delete                = 3        /**< Delete the record. */
        };

        bool StrToUpdateMode( const TCHAR*  str, UpdateMode::UpdateMode&  updateMode );  // error C2039
}

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Nevermind, I removed the UpdateMode:: before the UpdateMode parameter and it works. Comeau doesn't have a problem with the original code. VC++ 6.0 bug?

More likely VC 6.0 more stringently applies the standard.

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Comeau doesn't have a problem with the original code. VC++ 6.0 bug?

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The MinGW port of g++ 3.4.5 does not report any errors or warnings. However, MSVC8 reports that 'UpdateMode::UpdateMode': must be a class or namespace when followed by '::' on line 11.

I do not know who is correct, but then I usually do not use the same name for an enum as for a namespace.

Since it's inside the namespace, it's not required to explicitly specify the namespace's name within the declaration.

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Since it's inside the namespace, it's not required to explicitly specify the namespace's name within the declaration.

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That's correct, but fully qualifying the name should also be correct, unless the lookup rules state that in that context UpdateMode refers to the enum, so UpdateMode::UpdateMode refers to a member of the UpdateMode enum.

It would refer to the enum.

You could try ::UpdateMode::UpdateMode instead.

But really, it's just not good style to give a namespace and a contained element the same name.

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It would refer to the enum.

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Can you quote the C++ Standard on that? It appears that both Comeau and g++ do not conform, yet MSVC6 does, which is amazing.

Too lazy to look it up, but it seems logical. Of course, the issue wouldn't occur for me, because I make sure my names differ.

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Too lazy to look it up, but it seems logical.

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But the Standard was designed by a committee, and committees can be very illogical at times :D
Okay, but so can individuals. Oh well.

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Of course, the issue wouldn't occur for me, because I make sure my names differ.

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Indeed. I think this is the simplest and best solution to the problem.

Yeah, I changed the namespace to UpdateModeNS and it didn't complain about using UpdateModeNS::UpdateMode.
Strange though, you'd think compilers would be smart enough to know what I'm talking about on each side of the ::

Why would you think that compilers are smart? :D