The compiler complains "no property 'value_type' for type 'R'no property 'value_type' for type 'R'"

    template FilteredNotionalRange(R, V : R.value_type) { class
FilteredNotionalRange
    {
      . . .
    }}

Is this a bug, or a missing language feature?

Matthew Wilson wrote:

> The compiler complains "no property 'value_type' for type 'R'no property 'value_type' for type 'R'"
> 
>     template FilteredNotionalRange(R, V : R.value_type) { class
> FilteredNotionalRange
>     {
>       . . .
>     }}
> 
> Is this a bug, or a missing language feature?

That would be specialisation then. Not default?
Bit confusing, but the templates apparently don't follow the rest of D when
specifying defaults.

: == specialisation
= == default

Unless the spec is way out of date with reality and I've been doing this all wrong - no wonder my tests don't work :)