mean that the type is either a scalar type<a class="link" href="background.html#background.references">[3]</a> or:
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          The type has no user defined assignment operator.
        </li>
<li class="listitem">
          The type does not have any data members that are references.
        </li>
<li class="listitem">
          All base classes, and all data member objects must have trivial assig