id summary reporter owner description type status milestone component version severity resolution keywords cc 2463 constrained_value type missing default constructor for member value_. Dean Michael Berris az_sw_dude "When using Ubuntu GCC 4.3.2 the constrained_value type causes a warning on a possible use of an uninitialized member variable. Attached is a trivial patch to address the issue." Bugs closed Boost 1.37.0 date_time Boost 1.36.0 Problem fixed