virtual void append_followpos (const node_vector &followpos_)
{
for (typename node_vector::const_iterator iter_ = followpos_.begin (),
end_ = followpos_.end (); iter_ != end_; ++iter_)
{
_followpos.push_back (*iter_);
}
}
void append_lastpos (node_vector &lastpos_) const
{
lastpos_.insert (lastpos_.end (),
_lastpos.begin (), _lastpos.end ());
}
void append_firstpos (node_vector &firstpos_) const
{
firstpos_.insert (firstpos_.end (),
_firstpos.begin (), _firstpos.end ());
}