Limiting template functions to template instantiations of a struct

[Atila Neves]

On Wednesday, 6 November 2013 at 21:52:04 UTC, Dicebot wrote:
> On Wednesday, 6 November 2013 at 21:49:52 UTC, Atila Neves 
> wrote:
>> Wow. It didn't even occur to me that `is` could be used like 
>> that. I think that operator is the hardest part of the 
>> language for me to grok. Thanks guys!
>
> http://dlang.org/expression.html#IsExpression ;)

I know, but I keep having to refer back to that and even then I 
didn't know about the syntax these guys just posted! ;)