[Bug c++/49045] New: [C++0x] unexpected "different exception specifier" error with noexcept

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49045

           Summary: [C++0x] unexpected "different exception specifier"
                    error with noexcept
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: paolo.carlini@oracle.com


Hi. I'm seeing an error for this snippet which I cannot understand:

template<typename _Tp> 
  void 
  swap(_Tp&, _Tp&);

template<typename _Tp, __SIZE_TYPE__ _Nm>
  void
  swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
  noexcept(noexcept(swap(*__a, *__b)));

template<typename _Tp, __SIZE_TYPE__ _Nm>
  void
  swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
  noexcept(noexcept(swap(*__a, *__b)))
  { }