+ // Return the size of a DW_FORM_ref_addr.
+ // In DWARF v2, this was the size of an address; in DWARF v3 and later,
+ // it is the size of an DWARF offset.
+ unsigned int
+ ref_addr_size() const
+ { return this->cu_version_ > 2 ? this->offset_size_ : this->address_size_; }
+