ier">uint64_t</span>
<span class="identifier">size</span><span class="special">(</span>
    <span class="identifier">value_type</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">body</span><span class="special">);</span>
</pre>
<h6>
<a name="beast.ref.boost__beast__http__span_body.size.h1"></a>
          <span class="phrase"><a name="beast.ref.boost__beast__http__span_body.size.description"></a></span><a class="link" href="size.html#beast.ref.boost__beast__