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update for trac #1893

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[SVN r53856]
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Joel de Guzman
2009-06-13 06:29:32 +00:00
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="fusion.change_log"></a><a href="change_log.html" title="Change log">Change log</a></h2></div></div></div>
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<p>
This section summarizes significant changes to the Fusion library.
</p>
<div class="itemizedlist"><ul type="disc">
<li>
Sep 27, 2006: Added <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span></code>
Sep 27, 2006: Added <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span></tt>
support. (Joel de Guzman)
</li>
<li>
Nov 17, 2006: Added <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span></code>
Nov 17, 2006: Added <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span></tt>
support. (Joel de Guzman)
</li>
<li>
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May 8, 2007: Added associative struct adapter. (Dan Marsden)
</li>
<li>
Dec 20, 2007: Removed <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span></code>
Dec 20, 2007: Removed <tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span></tt>
support. After thorough investigation, I think now that the move to make
variant a fusion sequence is rather quirky. A variant will always have a
size==1 regardless of the number of types it can contain and there's no way
to know at compile time what it contains. Iterating over its types is simply
wrong. All these imply that the variant is <span class="bold"><strong>not</strong></span>
wrong. All these imply that the variant is <span class="bold"><b>not</b></span>
a fusion sequence. (Joel de Guzman)
</li>
</ul></div>