Robert Jacques napisał: > On Fri, 25 Feb 2011 02:48:01 -0500, Kevin Bealer > <[email protected]> wrote: > > I think immutable could benefit from a Value Range Propagation-like > > uniqueness > > 'unique' has been proposed and heavily discussed before in the news group. > There even is std.typecons.Unique. Unfortunately, Walter has stated that > there are issues/difficulties in adding 'unique' to the language.
What were those difficulties? -- Tomek
