e class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span>
<span class="identifier">write_some</span><span class="special">(</span>
    <span class="identifier">string_view</span> <span class="identifier">s</span><span class="special">,</span>
    <span class="identifier">error_code</span><span class="special">&amp;</span> <span class="identifier">ec</span><span class="special">);</span>
</pre>
<h7><a name="json.ref.boost__json__stream_p