[Bug libstdc++/31426] New: TR1 includes do not work with -std=c++0x

["dgregor at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

When the compiler is provided with -std=c++0x to enable the experimental C++0x
mode, includes of TR1 facilities (e.g., tr1/tuple) do not put TR1 functionality
into namespace std::tr1, breaking backward compatibility. Here's an example
program that compiles without -std=c++0x but does not compile with it:

#include <tr1/tuple>

int main()
{
  std::tr1::tuple<int, double> x(17, 3.14);
  return 0;
}


-- 
           Summary: TR1 includes do not work with -std=c++0x
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dgregor at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31426