[Issue 5891] New: hasLength!iota is false

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=5891

           Summary: hasLength!iota is false
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: regression
          Priority: P2
         Component: Phobos
        AssignedTo: nob...@puremagic.com
        ReportedBy: dsim...@yahoo.com


--- Comment #0 from David Simcha <dsim...@yahoo.com> 2011-04-26 06:19:17 PDT ---
With the latest SVN versions of Phobos and DMD the following static assert
fails:

import std.range;

void main() {
    auto myIota = iota(1000);
    static assert(hasLength!(typeof(myIota)));
}


IMHO this is a blocker for releasing 2.053 because iota is very frequently used
with parallel foreach loops and parallel foreach is much less efficient if
iterating over a range without a length.

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