id summary reporter owner description type status milestone component version severity resolution keywords cc 11515 dynamic_bitset move constructor should be conditionally noexcept anonymous jsiek "It should be noexcept if buffer_type is nothrow move constructible, i.e., `noexcept(is_nothrow_move_constructible::value)`. Otherwise, a `std::vector` will be forced to copy on reallocation." Bugs new To Be Determined dynamic_bitset Boost 1.58.0 Problem