p>
          <a class="indexterm" name="idp53304704"></a> 
The default buffer size.
        </p>
<pre class="programlisting"><span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">default_buffer_size</span> <span class="special">=</span> <span class="identifier">implementation_defined</span><span class="special">;</span>
</pre>
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