http://d.puremagic.com/issues/show_bug.cgi?id=5043

           Summary: writeln with empty arrays should write something
                    useful
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: peter.alexander.au@gmail.com


--- Comment #0 from Peter Alexander <peter.alexander.au@gmail.com> 2010-10-11 15:29:18 PDT ---
writeln( [1, 2, 3] ); // prints "[1, 2, 3]"
writeln( [] ); // prints "" (nothing)

Why doesn't writeln( [] ) print "[]"? It seems to me that "[]" would be far more useful, and it is certainly more consistent with the non-empty array behaviour.

I know this is a minor thing, but if I'm trying to debug, blank lines aren't very much use, and actually cause more confusion than enlightenment.

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bearophile_hugs@eml.cc changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bearophile_hugs@eml.cc


--- Comment #1 from bearophile_hugs@eml.cc 2010-10-11 16:19:36 PDT ---
The same bug is present with associative arrays:


import std.stdio: writeln;
void main() {
    int[int] aa;
    writeln(aa);
}


In this case I expect an output like:
[]
or even:
[:]


See also bug 3813

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Denis Derman <denis.spir@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |denis.spir@gmail.com


--- Comment #2 from Denis Derman <denis.spir@gmail.com> 2010-12-16 00:24:11 PST ---
(In reply to comment #0)
> writeln( [1, 2, 3] ); // prints "[1, 2, 3]"
> writeln( [] ); // prints "" (nothing)
> 
> Why doesn't writeln( [] ) print "[]"? It seems to me that "[]" would be far more useful, and it is certainly more consistent with the non-empty array behaviour.
> 
> I know this is a minor thing, but if I'm trying to debug, blank lines aren't very much use, and actually cause more confusion than enlightenment.

+++

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Andrei Alexandrescu <andrei@metalanguage.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |andrei@metalanguage.com
         AssignedTo|nobody@puremagic.com        |andrei@metalanguage.com


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Kenji Hara <k.hara.pg@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


--- Comment #3 from Kenji Hara <k.hara.pg@gmail.com> 2011-09-02 12:09:10 PDT ---
https://github.com/D-Programming-Language/phobos/pull/126

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |andrej.mitrovich@gmail.com
         Resolution|                            |FIXED


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