Re: [boost] [core] [addressof.hpp] [addressof_test2.cpp] ISO C++ says that these are ambiguous

Subject: Re: [boost] [core] [addressof.hpp] [addressof_test2.cpp] ISO C++ says that these are ambiguous
From: Peter Dimov (lists_at_[hidden])
Date: 2014-12-24 22:01:40

Sergey Sprogis wrote:
...
> It looks like he following code fragment from boost/core/addressof.hpp 
> (latest trunk version) violates ISO C++ overloading rules:
...
> As a result, libs/core/test/addressof_test2.cpp fails to compile with 
> Oracle Studio 12.4 C++ compiler...

That's probably because of the __SUNPRO_CC workaround at addressof.hpp line 
110:

#if (defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, 
BOOST_TESTED_AT( 0x610 ) ) ) || defined( __SUNPRO_CC )

    return boost::detail::addressof_impl<T>::f( v, 0 );

#else

    return boost::detail::addressof_impl<T>::f( 
boost::detail::addr_impl_ref<T>( v ), 0 );

#endif

I assume that defined( __SUNPRO_CC ) needs to be changed to

defined( __SUNPRO_CC ) && BOOST_WORKAROUND( __SUNPRO_CC, < something )

but it's been a while since we stopped testing on this compiler so I don't 
know what 'something' must be. It should be set to the earliest version that 
doesn't need the workaround, but the current value of __SUNPRO_CC will also 
work.