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Daniel N via Digitalmars-d digitalmars-d at
Mon Nov 16 12:57:52 PST 2015

On Monday, 16 November 2015 at 18:37:18 UTC, Andrei Alexandrescu 
> On 11/16/2015 12:51 PM, Steven Schveighoffer wrote:
>>      List tail() const
> I'd like tail to be qualifier-idempotent, i.e. return const for 
> const and non-const for non-const. -- Andrei

I don't have a compiler at hand right now, but doesn't this work?

auto tail(this U)() const
   auto n =;
   return U(n, allocator);

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