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Subject: Re: [boost] Boost.Conversion: functors namming
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2011-05-24 07:11:07

Vicente Botet wrote:
> Stewart, Robert wrote:
> > auto f(factory<short>(_1));
> > short const s(f(static_cast<long>(3)));
> >
> > Your suggestions for the "factory" call are:
> >
> > A. boost::make_converter_to<short>(_1)
> > B. boost::conversion::fp::convert_to<short>(_1)
> > C. boost::convert_to<short>(_1)
> >
> > I definitely dislike B. A isn't bad, but it should be in the
> > boost::conversion namespace. C is very nice, but it should
> > be in the boost::conversion namespace. The introduction of
> > the placeholder is enough to signal that the result is a
> > Phoenix lambda.
> Even if C is the more elegant, to my taste, it introduce a
> dependency on Boost.Phonix even if functors are not used, and
> this is one thing I would like to avoid. So it seems that A is
> a best compromise.

That overload can be put into a separate header so it, and its dependency on Phoenix, is only visible when desired. <boost/conversion/functor.hpp>?

Rob Stewart robert.stewart_at_[hidden]
Software Engineer using std::disclaimer;
Dev Tools & Components
Susquehanna International Group, LLP

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