Re: [Boost-bugs] [Boost C++ Libraries] #7343: Extend result_of to work with SFINAE

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7343: Extend result_of to work with SFINAE
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-09-23 00:51:45

#7343: Extend result_of to work with SFINAE
-------------------------------+--------------------------------------------
  Reporter:  djwalker          |       Owner:  djwalker                   
      Type:  Feature Requests  |      Status:  new                        
 Milestone:  To Be Determined  |   Component:  utility                    
   Version:  Boost 1.52.0      |    Severity:  Problem                    
Resolution:                    |    Keywords:  result_of, decltype, SFINAE
-------------------------------+--------------------------------------------

Comment (by michel):

 Full warning messages on gcc 4.3-4.4 (in a C++11 mode
 `BOOST_RESULT_OF_USE_DECLTYPE`):
 {{{
 boost/utility/detail/result_of_iterate.hpp: In instantiation of 'const
 bool
 boost::detail::result_of_is_callable_2<result_of_member_function_template,
 volatile int&, int>::value':
 boost/utility/detail/result_of_iterate.hpp:101:   instantiated from
 'boost::detail::result_of_is_callable_2<result_of_member_function_template,
 volatile int&, int>'
 boost/utility/enable_if.hpp:47:   instantiated from
 'boost::lazy_enable_if<boost::detail::result_of_is_callable_2<result_of_member_function_template,
 volatile int&, int>,
 boost::detail::cpp0x_result_of_impl<result_of_member_function_template
 ()(volatile int&, int), false> >'
 boost/utility/result_of.hpp:118:   instantiated from
 'boost::detail::cpp0x_result_of_impl<result_of_member_function_template
 ()(volatile int&, int), true>'
 boost/utility/result_of.hpp:59:   instantiated from
 'boost::result_of<result_of_member_function_template ()(volatile int&,
 int)>'
 untitled:245:   instantiated from here
 boost/utility/detail/result_of_iterate.hpp:100: warning: object of type
 'volatile int&' will not be accessed in left-hand operand of comma
 boost/utility/detail/result_of_iterate.hpp: In instantiation of 'const
 bool
 boost::detail::result_of_is_callable_2<result_of_member_function_template,
 const volatile int&, int>::value':
 boost/utility/detail/result_of_iterate.hpp:101:   instantiated from
 'boost::detail::result_of_is_callable_2<result_of_member_function_template,
 const volatile int&, int>'
 boost/utility/enable_if.hpp:47:   instantiated from
 'boost::lazy_enable_if<boost::detail::result_of_is_callable_2<result_of_member_function_template,
 const volatile int&, int>,
 boost::detail::cpp0x_result_of_impl<result_of_member_function_template
 ()(const volatile int&, int), false> >'
 boost/utility/result_of.hpp:118:   instantiated from
 'boost::detail::cpp0x_result_of_impl<result_of_member_function_template
 ()(const volatile int&, int), true>'
 boost/utility/result_of.hpp:59:   instantiated from
 'boost::result_of<result_of_member_function_template ()(const volatile
 int&, int)>'
 untitled:246:   instantiated from here
 boost/utility/detail/result_of_iterate.hpp:100: warning: object of type
 'const volatile int&' will not be accessed in left-hand operand of comma
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7343#comment:18>
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