ref tuples
Simen Kjaeraas
simen.kjaras at gmail.com
Wed Jul 3 11:14:40 PDT 2013
On 2013-07-03, 02:22, Brad Anderson wrote:
> C++11's std::tuple includes a function std::tie that takes references to
> the arguments and returns a tuple that maintains the references to the
> arguments.
>
> Along with the usual cases where you'd want reference semantics it also
> enables this interesting construct for unpacking tuples.
>
> int a, b;
> tie(a, b) = make_tuple(1, 2);
>
> assert(a == 1 && b == 2);
>
> Is there any way to do something similar with std.typecons.Tuple?
Not that I know of. But, Philippe Sigaud's dranges[1] library includes
a RefTuple[2], which should do what you want.
[1]: https://github.com/dawgfoto/dranges/
[2]: https://github.com/dawgfoto/dranges/blob/master/reftuple.d
--
Simen
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