October 20, 2013
http://d.puremagic.com/issues/show_bug.cgi?id=11306

           Summary: ordering for std.algorithm.cartesianProduct
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: john.loughran.colvin@gmail.com


--- Comment #0 from John Colvin <john.loughran.colvin@gmail.com> 2013-10-20 16:18:34 BST ---
It would be nice to be able to ask for a particular ordering for cartesianProduct.

e.g. last range iterating faster, (0,0) (0,1) (0,2) (0,3) (0,4) (1,0) (1,1) (1,2) (1,3) (1,4) (2,0) ...

first range fastest, (0,0) (1,0) (2,0) (3,0) (4,0) (0,1) (1,1) (2,1) (3,1) (4,1) (0,2) ...

expanding N-dimensional surface containing all covered so far
(0,0) (1,0) (1,1) (0,1) (2,0) (2,1) (2,2) (1,2) (0,2) (3,0) (3,1) ...

by n_0 x n_1 x n_2 x ... x n_N chunk
e.g. for a 2 x 2 chunk on a 4x4 set, using first index fastest for chunk
ordering
(0,0) (1,0) (0,1) (1,1) (2,0) (3,0) (2,1) (3,1) (0,2) (1,2) (0,3) (1,3) (2,2)
(3,2) (2,3) (3,3)

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October 20, 2013
http://d.puremagic.com/issues/show_bug.cgi?id=11306


safety0ff.bugz <safety0ff.bugz@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |safety0ff.bugz@gmail.com


--- Comment #1 from safety0ff.bugz <safety0ff.bugz@gmail.com> 2013-10-20 08:56:56 PDT ---
See also #9878, especially the discussion linked in comment 2.

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