Re: isBidirectionalRange fails for unknown reasons

[Jack Stouffer via Digitalmars-d-learn]

On Wednesday, 16 December 2015 at 20:43:02 UTC, Jack Stouffer 
wrote:
unittest
{
    static assert(isInputRange!(ReferenceInputRange!int)); // 
works
    static assert(isForwardRange!(ReferenceForwardRange!int)); 
// works
    static 
assert(isBidirectionalRange!(ReferenceBidirectionalRange!int)); 
//fails
}

Also, this works just fine

=================
unittest
{
    auto a = new ReferenceBidirectionalRange!int([1,2]);
    a.popBack();
    a.back.writeln; // prints 1
}