July 27, 2007
http://d.puremagic.com/issues/show_bug.cgi?id=1381

           Summary: Dereference operator still works with arrays and array
                    types even though T[] -> T* is gone
           Product: D
           Version: 1.005
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Keywords: accepts-invalid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla@digitalmars.com
        ReportedBy: jarrett.billingsley@gmail.com


I'm reporting this as 1.005 since I originally found this (and posted an un-replied-to topic on the bugs NG) back in February.

Basically the implicit T[] -> T* conversion became illegal before 1.0 but some bits of it probably still remain in the compiler.  First, you can dereference an array to get the first element:

int[] a = [1, 2, 3];
writefln(*a); // writes 1

The other, more important problem, is that a naive "isPointerType" template that uses "is(*T)" will actually return true for array types, even though they're not pointer types.

If this is intended behavior, I'm not sure what the purpose is, and it's certainly not documented.


-- 

December 22, 2011
http://d.puremagic.com/issues/show_bug.cgi?id=1381


Don <clugdbug@yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |clugdbug@yahoo.com.au
         Resolution|                            |DUPLICATE


--- Comment #1 from Don <clugdbug@yahoo.com.au> 2011-12-22 00:48:28 PST ---
*** This issue has been marked as a duplicate of issue 3990 ***

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