C# and generics covariance

[Anders Borum]

Hello!

I was wondering if anybody in this newsgroup are following the status of
covariance in C#? As far as I'm concerned, generics covariance is not
supported with C# 3.0 - unfortunately, as I'd be a really nice feature.

I'm referencing text from this thread:

http://groups.google.dk/group/micro...=st&q=C#+covariance+generics#6869259c9e8ed6f5

Thanks in advance (it's good to be back on the newsgroup )

 

[Jon Skeet [C# MVP]]

I was wondering if anybody in this newsgroup are following the status of
covariance in C#? As far as I'm concerned, generics covariance is not
supported with C# 3.0 - unfortunately, as I'd be a really nice feature.

It's not in C# 3, and it's only supported on the CLR with respect to
interfaces.

Eric Lippert from the C# team is currently writing a series of blog
articles on it (current situation and possible futures) - it's worth
tracking them:

http://blogs.msdn.com/ericlippert/

Jon

 

[Anders Borum]

Thanks for the link - interesting information on his blog (although I'd
hoped he was further with the "variance" series).