Pure higher order functions

[Daniel Murphy]

"bearophile" <bearophileHUGS at lycos.com> wrote in message 
news:iv9grs$286j$1 at digitalmars.com...
>> Seeing the recent large amount of pull requests I am seeing, is someone 
>> willing to implement this type system feature?
>
> yebblies delivers, quickly too :-)
> http://d.puremagic.com/issues/show_bug.cgi?id=5081
> https://github.com/D-Programming-Language/dmd/pull/218
>

Only for strongly pure functions - not const pure at this point.  Still, it 
should make construction of immutable structures without casting a lot 
easier.