Alias template parameter to a private function

[Sebastien Alaiwan via Digitalmars-d-learn]

On Thursday, 29 June 2017 at 20:21:13 UTC, Ali Çehreli wrote:
> A workaround is to use a lambda:
>
>   filter!(a => isValid(a))(array)

Thanks! Nice trick, this is definitely going into my company's 
codebase :-)

> Such limitations are pretty annoying. There were a number of 
> similar issues in recent dmd releases. Please file a bug if 
> it's not already there:

Thanks, will do!