------- Comment #2 from dgregor at gcc dot gnu dot org 2007-04-02 16:32 ------- I don't think it is a feature.
In C++0x mode, if one includes <tuple>, one should get std::tuple. That's what the C++0x working paper says. In any mode, if one includes <tr1/tuple>, one should get std::tr1::tuple. That's what TR1 says (well, TR1 might say that you get std::tr1::tuple from including <tuple>; different vendors have done different things, here). I don't think support for C++0x precludes support for TR1. They coexist very well, especially because TR1 was designed to be compatible with C++0x. For example, C++0x-conforming implementations of the TR1 facilities also meet the requirements of TR1. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31426
