Re: [fusion] Proposal for deprecating fusion.tuple.

Kohei Takahashi <[email protected]> Sat, 30 Sep 2017 10:57:41 +0900

Newsgroups	gmane.comp.parsers.spirit.general
Message-ID	<[email protected]>

Chris,


> > I propose deprecating fusion.tuple, it makes fusion.vector
> > implementation complex.
>
> If fusion::tuple is deprecated in favor of std::tuple, would this also
> mean that boost::fusion would require C++11-conforming standard
> library to compile?
>
> Right now, unless I'm mistaken, fusion works fine even on e.g. gcc
> 4.5, and there are many C++03 etc. projects that depend on it.
No, C++03 support should be continued.

> What is the gain that you hope to achieve here, improved compilation
> times? How can moving to std::tuple accomplish that, since presumably
> the implementation quality of std::tuple will vary greatly from
> compiler to compiler? Wouldn't it be simpler to just try to make
> fusion::tuple faster in the perceived problematic cases?
My thought is improving compilation time and code quality of
`fusion::vector`, not `fusion::tuple`. In addition, I'm suspicious about
how many people use `fusion::tuple`.

Kohei

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