On 12/09/2021 9:26, John Emmas via Boost-users wrote:
On 11/09/2021 14:59, John Emmas wrote:
this seemingly minor change:-
#include <boost/intrusive/list.hpp>
class __declspec(dllexport) Point : public
boost::intrusive::list_base_hook<> {
};
will immediately invoke this compile-time assertion:-
"BOOST_STATIC_ASSERT(( (int)hooktags::link_mode == (int)auto_unlink
));" - i.e. the message I reported earlier...
So (presumably ?) 'boost::intrusive::list_base_hook<>' can't be used
in a class that'll get exported from a DLL?
Just wondering if anyone can reproduce this? Today I've tried 3 x
different revisions of libboost:- 1.77, 1.74 and 1.71 - but they all
give me the same assertion message. So maybe it's an intentional
limitation?
John
hi,
Sorry about being missing these days. When you declare something as
declspec the compiler must instantiate the class including all base
classes. A base hook has members that have only sense when some options
are used so the instantiation fails. To sum up: yes, boost.intrusive is
not prepared to be used in a DLL interface.
Best,
Ion
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