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Subject: Re: [boost] [review][mp11] Formal review of Mp11
From: Bruno Dutra (brunocodutra_at_[hidden])
Date: 2017-07-18 10:28:37

On Tue, Jul 18, 2017 at 9:58 AM, Joaquin M López Muñoz via Boost <
boost_at_[hidden]> wrote:

> El 17/07/2017 a las 23:03, Peter Dimov via Boost escribió:
>> Joaquin M López Muñoz wrote:
>>> Something more generic can be provided
>>> [...]
>>> template<typename MplSequence>
>>> using mp_mpl_sequence=typename mp_mpl_sequence_impl<MplSequen
>>> ce>::type;
>> How about we provide it in MPL instead?
>> namespace mpl {
>> template<class Seq, template<class...> class L = std::tuple> using
>> to_tuple = /*as above*/
>> }
>> to_tuple subject to bikeshedding (to_variadic? as_variadic_sequence?).
Personally I think this doesn't belong to MPL.

Actually I suggest providing a slightly more general utility that not
only converts MPL Sequences, but Metafunction Classes as well and also in a
recursive fashion, that is, Sequences of Sequences would be converted to
variadic Lists of variadic Lists for example.

Metal used to provide such a utility up until recently, when I decided to
remove it, but maybe it can still serve as a source of inspiration [1].
Some usage examples are available as well [2].



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