[Issue 9071] New: sort function won't compile but Range fits describtion

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9071

           Summary: sort function won't compile but Range fits describtion
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: rburners at gmail.com


--- Comment #0 from Robert Schadek <rburners at gmail.com> 2012-11-24 06:32:03 PST ---
The function sortImpl implies that the type returned by the slice operator of
the passed range is of the same type. This must not be true. If it is not
sortImpl will not instantiate recursively because of a type mismatch. This is a
problem for custom container. (Currently I have this problem)

To fix this. It should be checked whether or not the returned type of the
opSlice funtion is of the same type as the original range.

static assert(is(ReturnType!(Range.opSlice) == Range));

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