http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55169
--- Comment #2 from Chris Nell <chri.snell at gmail dot com> 2012-11-01 19:48:43 UTC --- After a bit more poking, it appears that param() returns a copy (not a const reference) for all distributions, not just discrete_distribution. As such, it might we worth looking into whether other implementations of operator(generator&) suffer from the same bug.
