id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
4084,"[result_of, tr1] use of decltype in boost::result_of breaks <boost/tr1/functional.hpp>",Eric Niebler,Daryle Walker,"Boost.TR1 is supposed to provide an implementation of TR1's library functionality. The change to boost::result_of on truck to use decltype on supporting compilers makes Boost.TR1's implementation of std::tr1::result_of non-compliant, as evidenced by the recent Boost.TR1 regression test failures on c++0x toolsets. It also breaks Proto because there is a bug in the specification of decltype that causes code that is valid with TR1 result_of to break with the c++0x result_of.

The attached patch fixes the issue with boost::result_of and <boost/tr1/functional.hpp>. It adds a new template in <boost/utility/result_of.hpp> called tr1_result_of that implements the TR1 result_of protocol regardless of whether decltype is available or not. It also changes <boost/tr1/functional.hpp> to define std::tr1::result_of in terms of boost::tr1_result_of.
",Patches,closed,Boost 1.44.0,utility,Boost Development Trunk,Problem,fixed,result_of decltype tr1,john@…