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          Default constructors don't allocate memory which improves performance and
          usually implies a no-throw guarantee (if predicate's or allocator's default
          constructor doesn't throw).
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          Small string optimization for <code class="computeroutput"><a class="link" href="../boost/container/basic_string.html" title="Class template basic_string">basic_string</a></code>,
          with an internal buffer of 11/23 bytes (32/64 bit systems) <span class="bold"><strong>without</strong></span>
          increasing the usual <code class="computeroutput"><span class="keyword">sizeof</span></code>
          of the string (3 words).
        </li>
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          <code class="computeroutput"><span class="special">[</span><span class="identifier">multi</span><span class="special">]</span><span class="identifier">set</span><span class="special">/</span><span class="identifier">map</span></code>
          containers are size optimized embedding the color bit of the red-black
          tree nodes in the parent pointer.
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          <code class="computeroutput"><span class="special">[</span><span class="identifier">multi</span><span class="special">]</span><span class="identifier">set</span><span class="special">/</span><span class="identifier">map</span></code>
          containers use no recursive functions so stack problems are avoided.
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        Distributed under the Boost Software License, Version 1.0. (See accompanying
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