[Bug c++/41019] New: Variate_generator with mt19937 and normal_distribution produces wrong sequence for "-O3".

[m_albert137 at yahoo dot com]

The attached code, we compiled with "-O3", gives an incorrect sequence (and
different from the sequence without optimization or -O1 or -O2).

This problem was discovered due to incorrect statistical behavior of a Monte
Carlo calculation (not attached).


-- 
           Summary: Variate_generator with mt19937 and normal_distribution
                    produces wrong sequence for "-O3".
           Product: gcc
           Version: 4.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: m_albert137 at yahoo dot com
  GCC host triplet: x86_64-unknown-linux-gnu  Core2 Q9550


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41019