gistfile1.cpp

std::vector<Object> dst_objs;

// transform an iterator into a moveable one
auto it  = std::make_move_iterator(src_objs.begin()), 
     end = std::make_move_iterator(src_objs.end());

std::copy_if(it, end, std::back_inserter(dst_objs), 
             [](const Object& cur) { return cur.type() == Type::TYPE1; });