Re: fusion vector, spirit, phoenix actor and forwarding constructor

On 14 July 2016 at 12:11, MM <[email protected]> wrote:

>
>
> On 14 July 2016 at 02:23, Lee Clagett <[email protected]> wrote:
> > On Tue, 12 Jul 2016 20:49:31 +0100 MM <[email protected]> wrote:
> >> Hello,
> >>
> >> In this user constructor for struct store in
> >> /usr/include/boost/fusion/container/vector/vector.hpp:175:44
> >>
> >>             template <typename U>
> >>             BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
> >>             store(U&& rhs
> >>                 , typename disable_if<is_same<typename pure<U>::type,
> >> store>, detail::enabler_>::type = detail::enabler)
> >>                 : elem(std::forward<U>(rhs))
> >> <= error is here
> >>             {}
> >>
> >> type of rhs is:
> >>    const boost::phoenix::actor<boost::spirit::attribute<1> >&
> >>
> >> the compiler meets this error:
> >>
> >> no matching function for call to
> >> ‘boost::phoenix::actor<boost::spirit::attribute<1> >::actor(const
> >> boost::spirit::attribute<1>&)’
> >>
> >> candidates are the default ctor,
> >> 1) constexpr boost::phoenix::actor<boost::spirit::attribute<1>
> >> >::actor()
> >>
> >> and the copy constructor
> >> 2) constexpr boost::phoenix::actor<boost::spirit::attribute<1>
> >> >::actor(const boost::phoenix::actor<boost::spirit::attribute<1> >&)
> >>
> >> This seems to be a problem only for >=c++11, also, it was ok with
> >> 1.58, but not now with develop.
> >>
> >> I haven't managed to extract a small reproducible case yet, and but
> >> i'll keep trying.
> >>
> >> Thanks,
> >>
> >> MM
> >>
>
> All compiled with g++6 c++11
> > Does it work with Boost 1.61?
> It hasn't work with vanilla boost 1.60 from my distro
>
> > or the master branch?
>
> > Or is it only broken on the develop branch?
> It is broker in develop branch, but I am guilty of mix and match, so
> apologies for that,
> I only took  boost 1.60 vanilla, and replaced phoenix spirit and fusion as
> links to the develop branch.
> I will try again with entire boost develop, then with entire boost master.
> Should I try with 1.61 vanilla as well?
>
> I suppose I'd need to clone the entire boost repo, then switch branches
> between master and develop
>
> is that git clone https://github.com/boostorg/boost.git
>
> for now I only have clones of fusion phoenix and spirit.
>
> While trying to make a smaller case, I've ran into I suppose a separate
> problem (likely unrelated) here:
>
> https://stackoverflow.com/questions/38372392/boost-phoenix-eval-failures
>
> The line closest to my real-code line that triggers the error above is:
>
> start_ %= g2_(_r1);
>
> Lee, here is a more complete stack that gets triggered from my real code:
>
> startrule %= start(_r1);
> qis::rule<Iterator, T*(T*), qis::blank_type> startrule;
> qis::rule<Iterator, T*(T*), qis::locals<X*>, qis::blank_type> start;
> /// where T and X are my application types.
> The error stack is here:
>
> http://paste.fedoraproject.org/391037/46849462
> http://paste.fedoraproject.org/391037/46849462
> Lee, let me know what to test please? Thanks
>
>
> MM
>

I managed to have a reproducible case and I updated the
https://stackoverflow.com/questions/38372392/boost-phoenix-eval-failures
with the code.

Thanks
MM

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