Struct template shift_left_assign</span></h2>
<p>boost::proto::shift_left_assign &#8212; A metafunction for generating left-shift-assign expression types,
          a grammar element for matching left-shift-assign expressions, and
          a <a class="link" href="../../PrimitiveTransform.html" title="Concept PrimitiveTransform">PrimitiveTransform</a> that dispatches to the
          <code class="computeroutput"><a class="link" href="pass_through.html" title="Struct template pass_through">proto::pass_throug