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digitalmars.D.bugs - [Issue 6136] New: Vector operation array[]^^ not supported yet

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=6136

           Summary: Vector operation array[]^^ not supported yet
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc


--- Comment #0 from bearophile_hugs eml.cc 2011-06-09 13:42:19 PDT ---
void main() {
    int[3] A = [1, 2, 3];
    int[3] B;
    B[] = A[] * 2; // OK
    assert(B == [2, 4, 6]);
    B[] = A[] * A[]; // OK
    assert(B == [1, 4, 9]);
    B[] = A[] ^^ 2; // Error
    assert(B == [1, 4, 9]);
    B[] = A[] ^^ A[]; // Error
    assert(B == [1, 4, 27]);
}


DMD 2.053 gives:
test.d(8): Error: incompatible types for ((A[]) ^^ (2)): 'int[]' and 'int'
test.d(10): Error: incompatible types for ((A[]) ^^ (A[])): 'int[]' and 'int[]'

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next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=6136


Iain Buclaw <ibuclaw ubuntu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ibuclaw ubuntu.com


--- Comment #1 from Iain Buclaw <ibuclaw ubuntu.com> 2011-08-21 03:23:57 PDT ---
This has been discussed before in bug3661

Have raised a pull request to get this code accepted, it is now up to the
library folk to optimise this routine, but I believe it's something that can't
be vectorised, so there will probably be no performance benefit.

https://github.com/D-Programming-Language/dmd/pull/325

Regards

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Aug 21 2011
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=6136


Iain Buclaw <ibuclaw ubuntu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


--- Comment #2 from Iain Buclaw <ibuclaw ubuntu.com> 2011-08-21 03:28:23 PDT ---
*** This issue has been marked as a duplicate of issue 3661 ***

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Aug 21 2011