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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="boost_typeindex.space_and_performance"></a><a class="link" href="space_and_performance.html" title="Space and Performance">Space and Performance</a>
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<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
          <code class="computeroutput"><span class="identifier">ctti_type_index</span></code> uses macro
          for getting full text representation of function name which could lead
          to code bloat, so prefer using <code class="computeroutput"><span class="identifier">stl_type_index</span></code>
          type when possible.
        </li>
<li class="listitem">
          All the type_index classes hold a single pointer and are fast to copy.
        </li>
<li class="listitem">
          Calls to <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">raw_name</span><span class="special">()</span></code> do not require dynamic memory allocation
          and usually just return a pointer to an array of chars in a read-only section
          of the binary image.
        </li>
<li class="listitem">
          Comparison operators are optimized as much as possible and execute a single
          <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">strcmp</span></code> in worst case.
        </li>
<li class="listitem">
          Calls to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">pretty_name</span><span class="special">()</span></code> usually require dynamic memory allocation
          and some computations, so they are not recommended for usage in performance
          critical sections.
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<td align="right"><div class="copyright-footer">Copyright &#169; 2012-2014 Antony Polukhin<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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