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Enum and scopes

Started by Concentrate Nov 20, 2009 at 7:39 PM 3 replies 1k views

Original Post

Nov 20, 2009 at 7:39 PM

So I got this warning : "warning C4482: nonstandard extension used: enum ... " In which was caused by this :

displayMode = DisplayMode::FILLED;

Then I found out or just realized that enum don't create its own namespace. Is there a particular reason why enums aren't given its own namespace? -------------------- EDIT: Fixed syntax; --------------------

MJP

Nov 20, 2009 at 7:46 PM

Doing that doesn't even compile for me. I get that warning if I use something like "DisplayMode::FILLED", though.

I'm not sure why the C++ standard doesn't let you qualify enum values like that. At any rate Visual Studio supports it as a non-standard extension, so if you're only using that to compile then you can just suppress the warning and go to town.

Washu

Nov 20, 2009 at 7:57 PM

Because the C standard didn't, and doing so would have broken most C programs.

AndyPandyV2

Nov 20, 2009 at 9:50 PM

Ya it sucks, the new C++ standard has enum class for doing this--at least that is something to look forward too.. I wrap all my enums in namespaces or structs to get around this annoyance.

joshuab

Nov 20, 2009 at 11:43 PM

But I have used enum in my C++program,
I din get any error...

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