Re: [OpenMethod] review starts on 28th of April

From: Richard Hodges (hodges.r_at_[hidden])
Date: 2025-05-02 19:15:22

On Fri, 2 May 2025 at 20:24, Jean-Louis Leroy via Boost <
boost_at_[hidden]> wrote:

> > I am working through the documents and found myself a little troubled
> that
> > there is a need to initialise the subsystem in main():
>
> I know...I don't like it either...the Dlang version auto-initializes.
>
> > It occurs to me that this can be solved using the Schwartz Counter (or
> Nifty
> > Counter) method, which because of inline variables, works fully using
> only
> > header files as of C++17.
>
> I don't think so. The problem is that initialize() must be called after
> all the
> static registrar objects have executed, and before the first method call.

Why? Does dispatch lookup not work with partially populated dispatch maps?

>
> With msvc, I could use init_seg. But I see no general solution. But I
> would be
> delighted to be proven wrong.
>
> > Thanks for your time.
>
> Thank you for your feedback!
>
> J-L
>
> On Fri, May 2, 2025 at 7:24 AM Richard Hodges via Boost
> <boost_at_[hidden]> wrote:
> >
> > On Sun, 27 Apr 2025 at 15:15, Дмитрий Архипов via Boost <
> > boost_at_[hidden]> wrote:
> >
> > > Dear Boost community. The peer review of the proposed Boost.OpenMethod
> will
> > > start on 28th of April and continue until May 7th. OpenMethods
> implements
> > > open
> > > methods in C++. Those are "virtual functions" defined outside of
> classes.
> >
> >
> > Thank you, this is a welcome development.
> >
> > I am working through the documents and found myself a little troubled
> that
> > there is a need to initialise the subsystem in main():
> >
> > #include <boost/openmethod/compiler.hpp> // only needed in the file that
> > calls boost::openmethod::initialize() auto main() -> int {
> boost::openmethod
> > ::initialize(); // ... }
> >
> > This prevents this library being used as a dependent subsystem within
> other
> > libraries, as the publisher of the library would need to communicate the
> > need for this manual initialisation down the chain of dependent projects.
> > This is brittle.
> >
> > It occurs to me that this can be solved using the Schwartz Counter (or
> > Nifty Counter) method, which because of inline variables, works fully
> using
> > only header files as of C++17.
> >
> > In case this is new information, the Schwartz Counter is the mechanism by
> > which std::cout and std::cin are made available by the standard library.
> >
> > Thanks for your time.
> >
> >
> > >
> > >
> >
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