as a number
      or a v-type possess is automatically available for that user-defined subtype.
    </p>
<h4>
<a name="variadic_macro_data.vmd_identifier_subtype.h0"></a>
      <span class="phrase"><a name="variadic_macro_data.vmd_identifier_subtype.defining_a_subtype"></a></span><a class="link" href="vmd_identifier_subtype.html#variadic_macro_data.vmd_identifier_subtype.defining_a_subtype">Defining
      a subtype</a>
    </h4>
<p>
      In order to define a user-defined subtype a number of steps need to b