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+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>Acknowledgments</title>
+<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
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+<link rel="home" href="../index.html" title="Boost.Optional">
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+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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+<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
+<td align="center"><a href="../../../../../index.html">Home</a></td>
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+<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
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+<a accesskey="p" href="dependencies_and_portability/optional_reference_binding.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a>
+</div>
+<div class="section">
+<div class="titlepage"><div><div><h2 class="title" style="clear: both">
+<a name="boost_optional.acknowledgments"></a><a class="link" href="acknowledgments.html" title="Acknowledgments">Acknowledgments</a>
+</h2></div></div></div>
+<h4>
+<a name="boost_optional.acknowledgments.h0"></a>
+ <span class="phrase"><a name="boost_optional.acknowledgments.pre_formal_review"></a></span><a class="link" href="acknowledgments.html#boost_optional.acknowledgments.pre_formal_review">Pre-formal
+ review</a>
+ </h4>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+ Peter Dimov suggested the name 'optional', and was the first to point out
+ the need for aligned storage.
+ </li>
+<li class="listitem">
+ Douglas Gregor developed 'type_with_alignment', and later Eric Friedman
+ coded 'aligned_storage', which are the core of the optional class implementation.
+ </li>
+<li class="listitem">
+ Andrei Alexandrescu and Brian Parker also worked with aligned storage techniques
+ and their work influenced the current implementation.
+ </li>
+<li class="listitem">
+ Gennadiy Rozental made extensive and important comments which shaped the
+ design.
+ </li>
+<li class="listitem">
+ Vesa Karvonen and Douglas Gregor made quite useful comparisons between
+ optional, variant and any; and made other relevant comments.
+ </li>
+<li class="listitem">
+ Douglas Gregor and Peter Dimov commented on comparisons and evaluation
+ in boolean contexts.
+ </li>
+<li class="listitem">
+ Eric Friedman helped understand the issues involved with aligned storage,
+ move/copy operations and exception safety.
+ </li>
+<li class="listitem">
+ Many others have participated with useful comments: Aleksey Gurotov, Kevlin
+ Henney, David Abrahams, and others I can't recall.
+ </li>
+</ul></div>
+<h4>
+<a name="boost_optional.acknowledgments.h1"></a>
+ <span class="phrase"><a name="boost_optional.acknowledgments.post_formal_review"></a></span><a class="link" href="acknowledgments.html#boost_optional.acknowledgments.post_formal_review">Post-formal
+ review</a>
+ </h4>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+ William Kempf carefully considered the originally proposed interface and
+ suggested the new interface which is currently used. He also started and
+ fueled the discussion about the analogy optional<>/smart pointer
+ and about relational operators.
+ </li>
+<li class="listitem">
+ Peter Dimov, Joel de Guzman, David Abrahams, Tanton Gibbs and Ian Hanson
+ focused on the relational semantics of optional (originally undefined);
+ concluding with the fact that the pointer-like interface doesn't make it
+ a pointer so it shall have deep relational operators.
+ </li>
+<li class="listitem">
+ Augustus Saunders also explored the different relational semantics between
+ optional<> and a pointer and developed the OptionalPointee concept
+ as an aid against potential conflicts on generic code.
+ </li>
+<li class="listitem">
+ Joel de Guzman noticed that optional<> can be seen as an API on top
+ of variant<T,nil_t>.
+ </li>
+<li class="listitem">
+ Dave Gomboc explained the meaning and usage of the Haskell analog to optional<>:
+ the Maybe type constructor (analogy originally pointed out by David Sankel).
+ </li>
+<li class="listitem">
+ Other comments were posted by Vincent Finn, Anthony Williams, Ed Brey,
+ Rob Stewart, and others.
+ </li>
+<li class="listitem">
+ Joel de Guzman made the case for the support of references and helped with
+ the proper semantics.
+ </li>
+<li class="listitem">
+ Mat Marcus shown the virtues of a value-oriented interface, influencing
+ the current design, and contributed the idea of "none".
+ </li>
+</ul></div>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright © 2003-2007 Fernando Luis Cacciola Carballal<br>Copyright © 2014 Andrzej Krzemieński<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>)
+ </p>
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="dependencies_and_portability/optional_reference_binding.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a>
+</div>
+</body>
+</html>