Re: [boost] [signals2] trunk - vc++ 10 warning about assignment operator

Subject: Re: [boost] [signals2] trunk - vc++ 10 warning about assignment operator
From: Frank Mori Hess (frank.hess_at_[hidden])
Date: 2011-05-12 09:23:55

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On Wednesday, May 11, 2011, Edward Diener wrote:
> The class in question is evidently
> "boost::signals2::detail::signal3_impl<R,T1,T2,T3,Combiner,Group,GroupCom
> pare,SlotFunction,ExtendedSlotFunction,Mutex>::slot_invoker", so I guess
> I am saying that this vc++ warning should be suppressed there. My own
> template, given in my OP, is not the culprit.

Does the attached patch which declares the assignment operator private 
suppress the warnings?

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Index: boost/signals2/detail/signal_template.hpp
===================================================================
--- boost/signals2/detail/signal_template.hpp	(revision 70818)
+++ boost/signals2/detail/signal_template.hpp	(working copy)
@@ -345,6 +345,9 @@
               resolver);
           }
         private:
+          // declare assignment operator private since this class might have reference or const members
+         slot_invoker & operator=(const slot_invoker &);
+
 #define BOOST_SIGNALS2_ADD_REF_M_ARG_STATEMENT(z, n, data) \
   BOOST_SIGNALS2_ADD_REF_TYPE(~, n, ~) BOOST_SIGNALS2_M_ARG_NAME(~, n, ~) ;
           BOOST_PP_REPEAT(BOOST_SIGNALS2_NUM_ARGS, BOOST_SIGNALS2_ADD_REF_M_ARG_STATEMENT, ~)

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