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March 20, 2012
[Issue 7738] New: Can't iterate a std.typecons.Typedef!(int[]) with foreach
http://d.puremagic.com/issues/show_bug.cgi?id=7738

          Summary: Can't iterate a std.typecons.Typedef!(int[]) with
                   foreach
          Product: D
          Version: D2
         Platform: All
       OS/Version: All
           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 2012-03-19 17:33:07 PDT ---
This compiles in DMD 2.059head:

alias int[] MyArray;
void main() {
   MyArray arr;
   foreach (i, item; arr) {}
}



This doesn't compile:

import std.typecons: Typedef;
alias Typedef!(int[]) MyArray;
void main() {
   MyArray arr;
   foreach (i, item; arr) {}
}

DMD 2.059head gives the error:

test.d(5): Error: invalid foreach aggregate arr


This simpler code gives the same error:

import std.typecons: Typedef;
alias Typedef!(int[]) MyArray;
void main() {
   MyArray arr;
   foreach (item; arr) {}
}


My main use cases for typedef are with arrays. So this problem makes
std.typecons.Typedef not much useful.

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January 20, 2013
[Issue 7738] Can't iterate a std.typecons.Typedef!(int[]) with foreach
http://d.puremagic.com/issues/show_bug.cgi?id=7738


Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

          What    |Removed                     |Added
----------------------------------------------------------------------------
            Status|NEW                         |RESOLVED
                CC|                            |andrej.mitrovich@gmail.com
        Resolution|                            |WORKSFORME


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-20 14:08:09 PST ---
Works in 2.061

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January 20, 2013
[Issue 7738] Can't iterate a std.typecons.Typedef!(int[]) with foreach
http://d.puremagic.com/issues/show_bug.cgi?id=7738



--- Comment #2 from bearophile_hugs@eml.cc 2013-01-20 15:12:14 PST ---
(In reply to comment #1)
> Works in 2.061

A step forward for D language.

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