Re: "using" declaration and template (generic) classes

From:
"Ben Voigt [C++ MVP]" <bvoigt@newsgroup.nospam>
Newsgroups:
microsoft.public.dotnet.languages.vc
Date:
Mon, 9 Nov 2009 20:00:55 -0600
Message-ID:
<evm#mmaYKHA.2160@TK2MSFTNGP02.phx.gbl>
"Kevin Frey" <kevin_g_frey@hotmail.com> wrote in message
news:us#L2xMYKHA.4816@TK2MSFTNGP06.phx.gbl...

Hello All,

I want to refer to the Nullable< T > template type in C++/CLI (a header
file) without requiring explicit qualification of the System:: namespace.

So I effectively want to do this (which won't actually compile):

using System::Nullable< T >; // or something to this affect

class MyClass
{
  property Nullable< int > MyProperty
  {
     // ...
  }
};

I can't find the right syntax to do this - yes I could use using namespace
System and yes I could qualify the typename (which I have done for the
moment as a workaround).

But it's now an academic exercise for me. Is it possible for a using
declaration to reference a generic class, and what is the syntax?

Nothing I have tried works, such as:

using System::Nullable< T >;
using System::Nullable< typename >;
using System::Nullable< typename T >;
template< typename T > using System::Nullable< T >;

And I can't find anything online or in the documentation.


Maybe typedef would work better.

Thanks

Kevin

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