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- <div class="titlepage"><div><div><h3 class="title">
- <a name="boost_optional.reference.acknowledgements"></a><a class="link" href="acknowledgements.html" title="Acknowledgements">Acknowledgements</a>
- </h3></div></div></div>
- <h5>
- <a name="boost_optional.reference.acknowledgements.h0"></a>
- <span class="phrase"><a name="boost_optional.reference.acknowledgements.pre_formal_review"></a></span><a class="link" href="acknowledgements.html#boost_optional.reference.acknowledgements.pre_formal_review">Pre-formal
- review</a>
- </h5>
- <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>
- <h5>
- <a name="boost_optional.reference.acknowledgements.h1"></a>
- <span class="phrase"><a name="boost_optional.reference.acknowledgements.post_formal_review"></a></span><a class="link" href="acknowledgements.html#boost_optional.reference.acknowledgements.post_formal_review">Post-formal
- review</a>
- </h5>
- <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>
- <li class="listitem">
- Vladimir Batov's design of Boost.Convert library motivated the development
- of value accessors for <code class="computeroutput"><span class="identifier">optional</span></code>:
- functions <code class="computeroutput"><span class="identifier">value</span></code>, <code class="computeroutput"><span class="identifier">value_or</span></code>, <code class="computeroutput"><span class="identifier">value_or_eval</span></code>.
- </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 © 2014-2016 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>
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