Boost C++ Libraries: Ticket #8438: vector & circular_buffer storage misbehave when using compiler optimizations

cc changed

Mon, 15 Apr 2013 12:38:00 GMT

cc ofirmebel@… added

Marshall Clow — Mon, 15 Apr 2013 19:08:24 GMT

I was able to replicate this with clang, but I got a warning which probably has some bearing here:

trunk/boost/numeric/ublas/vector.hpp:205:20: warning: returning reference to
      local temporary object [-Wreturn-stack-address]
            return data () [i];
                   ^~~~~~~~~~~
trunk/boost/numeric/ublas/io.hpp:58:18: note: in instantiation of member
      function 'boost::numeric::ublas::vector<double,
      boost::circular_buffer<double, std::allocator<double> > >::operator()'
      requested here
            s << v () (0);
                 ^
junk.cpp:7:15: note: in instantiation of function template specialization
      'boost::numeric::ublas::operator<<<char, std::char_traits<char>,
      boost::numeric::ublas::vector<double, boost::circular_buffer<double,
      std::allocator<double> > > >' requested here
    std::cout << v << std::endl;
              ^
1 warning generated.

description changed

viboes — Tue, 21 May 2013 18:49:41 GMT

description modified (diff)

owner, component changed

viboes — Sun, 09 Jun 2013 21:05:23 GMT

owner changed from Jan Gaspar to Gunter
component circular_buffer → uBLAS

Could some experts of UBlas take a look at this ticket? Please, reassign to circular buffer if this has nothing to be with UBlas.