[Issue 6529] New: writeln(const array of enums) too

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=6529

           Summary: writeln(const array of enums) too
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nob...@puremagic.com
        ReportedBy: bearophile_h...@eml.cc


--- Comment #0 from bearophile_h...@eml.cc 2011-08-18 14:56:17 PDT ---
This enhancement request is almost a bug report.


import std.stdio: writeln;
enum Foo : char { A='a', B='b', C='c' }
void main() {
    const Foo[] foos = [Foo.A];
    writeln(foos);
}



DMD 2.055beta gives errors, but I'd like to print such arrays too:

...\src\phobos\std\format.d(1338): Error: static assert 
(isInputRange!(const(Foo)[])) is false
...\src\phobos\std\format.d(1652):        instantiated from here:
formatValue!(LockingTextWriter,const(Foo[]),immutable(char))
...\src\phobos\std\format.d(309):        instantiated from here:
formatGeneric!(LockingTextWriter,const(Foo[]),immutable(char))
...\src\phobos\std\stdio.d(678):        instantiated from here:
formattedWrite!(LockingTextWriter,immutable(char),const(Foo[]))
...\src\phobos\std\stdio.d(1511):        instantiated from here:
write!(const(Foo[]),char)
test.d(5):        instantiated from here: writeln!(const(Foo[]))

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