http://d.puremagic.com/issues/show_bug.cgi?id=5952

           Summary: map(AA.byValue()) problem
           Product: D
           Version: unspecified
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2011-05-07 16:27:16 PDT ---
import std.algorithm;
void main() {
    int[int] hash = [1:2, 3:4];
    auto vals = hash.byValue();
    map!q{a}(vals); // error
}


The line of code with "map" causes this (DMD 2.053beta):

test.d(5): Error: template std.algorithm.map!("a").map(Range) if
(isInputRange!(Unqual!(Range))) does not match any function template
declaration
test.d(5): Error: template std.algorithm.map!("a").map(Range) if
(isInputRange!(Unqual!(Range))) cannot deduce template function from argument
types !()(int delegate(int delegate(ref int) dg))

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kennytm@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |kennytm@gmail.com
         Resolution|                            |DUPLICATE


--- Comment #1 from kennytm@gmail.com 2011-05-08 00:00:18 PDT ---
That's because byValue returns an opApply delegate, not a range.

*** This issue has been marked as a duplicate of issue 4264 ***

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--- Comment #2 from bearophile_hugs@eml.cc 2011-05-08 03:35:46 PDT ---
(In reply to comment #1)
> That's because byValue returns an opApply delegate, not a range.
> 
> *** This issue has been marked as a duplicate of issue 4264 ***

This is not a duplicate of 4264. Here I am not asking map() to use opApply, I
am asking byValue() to be a Range, if possible.

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--- Comment #3 from kennytm@gmail.com 2011-05-08 04:37:55 PDT ---
(In reply to comment #2)
> (In reply to comment #1)
> > That's because byValue returns an opApply delegate, not a range.
> > 
> > *** This issue has been marked as a duplicate of issue 4264 ***
> 
> This is not a duplicate of 4264. Here I am not asking map() to use opApply, I
> am asking byValue() to be a Range, if possible.

Then it is still a dup of bug 4607.

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