# File lib/active_ldap/adapter/ldap_ext.rb, line 61
    def assert_error_code
      return unless failed?
      klass = ActiveLdap::LdapError::ERRORS[err]
      klass ||= IMPLEMENT_SPECIFIC_ERRORS[err]
      klass ||= ActiveLdap::LdapError
      raise klass, LDAP.err2string(err)
    end