Re: [boost] New library? CallableTraits

On Mon, May 16, 2016 at 3:34 PM, Jesse Williamson wrote:

On Sun, May 15, 2016 at 6:13 AM, Louis Dionne wrote:

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1. Is there any interest in reviewing a future version of this for inclusion in Boost?

I think so. I've also heard a couple of people say that they needed

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functionality this week in Aspen, so I imagine this would be a useful addition to Boost. In the long term, I think we need something similar (perhaps a subset of CallableTraits) in the standard.

Throwing in my two bits here, I absolutely agree that ultimately the type_traits header should provide something allowing this sort of introspection.

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2. If so, does this belong in its own library, or should it be incorporated into Boost.TypeTraits or something similar?

No strong opinion here, though it might be a bit large for an addition to Boost.TypeTraits? In all cases, if there's a review of the library, you can count on me to submit one.

I guess not a /strong/ opinion, but I would like to see it just be part of Boost Type Traits. It feels like something that we should be able to do in a single library?

The reference documentation is now available [1]. It's a first draft, but it should clarify much of the uncertainty surrounding the CallableTraits feature set. I agree that Boost.TypeTraits is the best place for these features. Would a formal review be in order if CallableTraits is not going to be submitted as a standalone library? I removed several scope-creepy features from CallableTraits, which brought the source line count down from 4200 to around 2500. I also rewrote the interface to follow the `` conventions (e.g. `_t` and `_v` suffixes). I still need to write more test cases, especially for the substitution failure claims about template constraint violations -- I'm pretty sure the reference documentation is ahead of the code in this regard. I also need to supply better use-case examples. Thanks, Barrett Adair [1] http://badair.github.io/callable_traits/doc/html/callable_traits/reference.h...