Re: [boost] [core] Breaking change to boost::ref in 1.56

Subject: Re: [boost] [core] Breaking change to boost::ref in 1.56
From: Peter Dimov (lists_at_[hidden])
Date: 2014-07-14 06:01:40

Andrey Semashev wrote:
> Would you expect this code to work:
>
>   struct my_class
>   {
>     void bar();
>   };
>
>   struct my_class_const
>   {
>     void bar() const;
>   };
>
>   template< typename T >
>   void foo(T const& t)
>   {
>     typedef typename boost::unwrap_reference<T>::type class_type;
>     boost::bind(&class_type::bar, boost::ref(t))();
>   }
>
>   foo(my_class_const());
>   my_class x;
>   foo(boost::ref(x));

Unless I'm doing something wrong, this code seems to work with the old 
boost::ref, it also works with the new boost::ref without the collapsing 
overloads. I'm not sure what your point is; are you arguing that the code 
must fail?