• d-bugmail puremagic.com (27/27) Jul 12 2011 http://d.puremagic.com/issues/show_bug.cgi?id=6297

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=6297

           Summary: cast() does not remove const or immutable on arrays
                    and pointers
           Product: D
           Version: D2
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: schveiguy yahoo.com


--- Comment #0 from Steven Schveighoffer <schveiguy yahoo.com> 2011-07-12
11:46:14 PDT ---
cast() is supposed to remove all attributes from a type, but in the case of
arrays, it does nothing to the tail.

I think cast() should remove even the tail.

Note that arrays *already* implicitly cast to their tail versions.  i.e.:

const(T[]) implicitly casts to const(T)[]
immutable(T[]) implicitily casts to immutable(T)[]

so to have:

cast()const(T[]) result in const(T)[] serves no purpose, I need no cast there.

The same goes for pointers, and if they are ever implemented, tail-const object
references.

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