[Issue 2400] New: return const proposals

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=2400

           Summary: return const proposals
           Product: D
           Version: unspecified
          Platform: All
               URL: http://www.digitalmars.com/webnews/newsgroups.php?art_gr
                    oup=digitalmars.D&article_id=76886
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: terranium at yandex.ru


This RFE was extracted from bug 2094 (see comment #6).

> > we expect to get invariant data from invariant object.
> 
> Then define an invariant function.

This RFE is aimed at eliminating code duplication.

> Const is the equalizer, and it's perfectly
> acceptable to get invariant data as const.

Not quite perfectly.

> It doesn't mean that if the data is invariant, the
> function magically returns invariant.

But we still want some magic.


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