Re: [Boost-users] boost::any_range with an abstract class reference

Subject: Re: [Boost-users] boost::any_range with an abstract class reference
From: Michel Morin (mimomorin_at_[hidden])
Date: 2013-08-23 14:55:04

Hi,

voivoid wrote:
> Compilation fails with the following error ( looks like
> any_range value is supposed to be copy-constructable? )
> Is there any workaround?

I don't know the details of any_range, but here is a hack:

Change Line 49-51 of <boost/range/detail/any_iterator_interface.hpp>

    typedef typename remove_const<
        typename remove_reference<Reference>::type
    >::type reference_as_value_type;

to

    typedef typename mpl::if_<
        mpl::or_<
            is_abstract<typename remove_reference<Reference>::type>
          , is_array<typename remove_reference<Reference>::type>
        >
      , Reference
      , typename remove_const<
            typename remove_reference<Reference>::type
        >::type
    >::type reference_as_value_type;

Regards,
Michel

P.S.
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