id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 13551,m_storage may be used uninitialized in this function,lukasz.czajczyk@…,Fernando Cacciola,"Hi, in 1.66 was the following feature introduced: On newer compilers optional is now trivially-copyable for scalar Ts. This uses a different storage (just T rather than aligned_storage). We require the compiler to support defaulted functions. Gcc 4.4.7 in C++98 mode is incorrectly recognizes because Boost tries to use tc_optional_base however without C++11 defaulted functions are not working. This is causing boost::optional::.boost::optional_detail::tc_optional_base::m_storage’ may be used uninitialized in this function warning.",Bugs,new,To Be Determined,optional,Boost 1.66.0,Regression,,,