Re: [boost] [review][mp11] Formal review of Mp11

Subject: Re: [boost] [review][mp11] Formal review of Mp11
From: Peter Dimov (lists_at_[hidden])
Date: 2017-07-15 12:39:45

Vinnie Falco wrote:

> >   * Documentation: 
> > https://rawgit.com/pdimov/mp11/master/doc/html/mp11.html
>
> Is there a rationale explaining how mp11 differentiates itself from the 
> numerous other metaprogramming libraries, some in Boost? Why does Boost 
> need yet another one of these things?

Mp11 differentiates itself from Boost.MPL by being based on C++11 constructs 
such as template aliases and variadic templates.

Compared to Boost.Hana, Mp11 offers pure type-based metaprogramming. This 
more limited scope in practice translates to more compilers supported and 
faster compile times.

If we look outside Boost, compared to Metal, the main difference is that 
Mp11 is generic with respect to the List and Number concepts; it works with 
std::tuple, std::pair, std::variant, the lot, and it supports type traits of 
the is_const variety directly.