merged from trunk

[SVN r49607]
merged from trunk
2025-06-27 13:01:33 +02:00 · 2008-11-06 00:15:47 +00:00 · 2008-05-14 19:40:35 +00:00 · 2008-05-11 18:27:27 +00:00 · 2008-05-02 17:44:19 +00:00 · 2008-04-05 18:00:00 +00:00
23 changed files with 600 additions and 494 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -0,0 +1,22 @@
 #----------------------------------------------------------------------------
 # This file was automatically generated from the original CMakeLists.txt file
 # Add a variable to hold the headers for the library
 set (lib_headers
    optional.hpp
    optional
 )
 # Add a library target to the build system
 boost_library_project(
  optional
  #  SRCDIRS 
  TESTDIRS  test
  HEADERS ${lib_headers}
  #  DOCDIRS 
  #  DESCRIPTION 
  MODULARIZED 
  #  AUTHORS 
  #  MAINTAINERS 
 )
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@ -12,8 +12,6 @@
 import quickbook ;
 path-constant images : html ;
 xml optional
    :
        optional.qbk
@ -28,8 +26,5 @@ boostbook standalone
        <xsl:param>toc.max.depth=2
        <xsl:param>toc.section.depth=2
        <xsl:param>chunk.section.depth=1
        <format>pdf:<xsl:param>img.src.path=$(images)/
        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/optional/doc/html
    ;
--- a/doc/html/boost_optional/a_note_about_optional_bool_.html
+++ b/doc/html/boost_optional/a_note_about_optional_bool_.html
@ -1,30 +1,33 @@
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<title>A note about optional&lt;bool&gt;</title>
+<title>A note about
    optional&lt;bool&gt;</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="in_place_factories.html" title="In-Place Factories">
-<link rel="next" href="exception_safety_guarantees.html" title="Exception Safety Guarantees">
+<link rel="next" href="exception_safety_guarantees.html" title="Exception Safety
    Guarantees">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
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 </div>
-<div class="section" title="A note about optional&lt;bool&gt;">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.a_note_about_optional_bool_"></a><a class="link" href="a_note_about_optional_bool_.html" title="A note about optional&lt;bool&gt;">A note about
+<a name="boost_optional.a_note_about_optional_bool_"></a><a href="a_note_about_optional_bool_.html" title="A note about
    optional&lt;bool&gt;">A note about
    optional&lt;bool&gt;</a>
 </h2></div></div></div>
 <p>
@ -33,7 +36,7 @@
    </p>
 <p>
      First, it is functionally similar to a tristate boolean (false,maybe,true)
-      &#8212;such as <a href="../../../../../doc/html/tribool.html" target="_top">boost::tribool</a>&#8212;
+      &#8212;such as <a href="../../../../tribool/index.html" target="_top">boost::tribool</a>&#8212;
      except that in a tristate boolean, the maybe state <span class="underline">represents
      a valid value</span>, unlike the corresponding state of an uninitialized
      <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">bool</span><span class="special">&gt;</span></code>. It
@ -49,7 +52,8 @@
      lead to subtle errors due to the implicit <code class="computeroutput"><span class="keyword">bool</span></code>
      conversion:
    </p>
-<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">foo</span> <span class="special">(</span> <span class="keyword">bool</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span>
+<pre class="programlisting">
 <span class="keyword">void</span> <span class="identifier">foo</span> <span class="special">(</span> <span class="keyword">bool</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span>
 <span class="keyword">void</span> <span class="identifier">bar</span><span class="special">()</span>
 <span class="special">{</span>
    <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">bool</span><span class="special">&gt;</span> <span class="identifier">v</span> <span class="special">=</span> <span class="keyword">try</span><span class="special">();</span>
--- a/doc/html/boost_optional/acknowledgments.html
+++ b/doc/html/boost_optional/acknowledgments.html
@ -3,107 +3,108 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Acknowledgments</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
-<link rel="prev" href="dependencies_and_portability.html" title="Dependencies and Portability">
+<link rel="prev" href="dependencies_and_portability.html" title="Dependencies
    and Portability">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
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+<td align="center"><a href="../../../../../index.htm">Home</a></td>
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-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../../more/index.htm">More</a></td>
 </tr></table>
 <hr>
 <div class="spirit-nav">
 <a accesskey="p" href="dependencies_and_portability.html"><img src="../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/html/images/home.png" alt="Home"></a>
 </div>
-<div class="section" title="Acknowledgments">
+<div class="section" lang="en">
 <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>
+<a name="boost_optional.acknowledgments"></a><a href="acknowledgments.html" title="Acknowledgments">Acknowledgments</a>
 </h2></div></div></div>
 <a name="boost_optional.acknowledgments.pre_formal_review"></a><h4>
-<a name="id583998"></a>
+<a name="id2645003"></a>
-      <a class="link" href="acknowledgments.html#boost_optional.acknowledgments.pre_formal_review">Pre-formal
+      <a href="acknowledgments.html#boost_optional.acknowledgments.pre_formal_review">Pre-formal
      review</a>
    </h4>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
        Peter Dimov suggested the name 'optional', and was the first to point out
        the need for aligned storage.
      </li>
-<li class="listitem">
+<li>
        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">
+<li>
        Andrei Alexandrescu and Brian Parker also worked with aligned storage techniques
        and their work influenced the current implementation.
      </li>
-<li class="listitem">
+<li>
        Gennadiy Rozental made extensive and important comments which shaped the
        design.
      </li>
-<li class="listitem">
+<li>
        Vesa Karvonen and Douglas Gregor made quite useful comparisons between optional,
        variant and any; and made other relevant comments.
      </li>
-<li class="listitem">
+<li>
        Douglas Gregor and Peter Dimov commented on comparisons and evaluation in
        boolean contexts.
      </li>
-<li class="listitem">
+<li>
        Eric Friedman helped understand the issues involved with aligned storage,
        move/copy operations and exception safety.
      </li>
-<li class="listitem">
+<li>
        Many others have participated with useful comments: Aleksey Gurotov, Kevlin
        Henney, David Abrahams, and others I can't recall.
      </li>
 </ul></div>
 <a name="boost_optional.acknowledgments.post_formal_review"></a><h4>
-<a name="id584068"></a>
+<a name="id2645073"></a>
-      <a class="link" href="acknowledgments.html#boost_optional.acknowledgments.post_formal_review">Post-formal
+      <a href="acknowledgments.html#boost_optional.acknowledgments.post_formal_review">Post-formal
      review</a>
    </h4>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
        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&lt;&gt;/smart pointer and
        about relational operators.
      </li>
-<li class="listitem">
+<li>
        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">
+<li>
        Augustus Saunders also explored the different relational semantics between
        optional&lt;&gt; and a pointer and developed the OptionalPointee concept
        as an aid against potential conflicts on generic code.
      </li>
-<li class="listitem">
+<li>
        Joel de Guzman noticed that optional&lt;&gt; can be seen as an API on top
        of variant&lt;T,nil_t&gt;.
      </li>
-<li class="listitem">
+<li>
        Dave Gomboc explained the meaning and usage of the Haskell analog to optional&lt;&gt;:
        the Maybe type constructor (analogy originally pointed out by David Sankel).
      </li>
-<li class="listitem">
+<li>
        Other comments were posted by Vincent Finn, Anthony Williams, Ed Brey, Rob
        Stewart, and others.
      </li>
-<li class="listitem">
+<li>
        Joel de Guzman made the case for the support of references and helped with
        the proper semantics.
      </li>
-<li class="listitem">
+<li>
        Mat Marcus shown the virtues of a value-oriented interface, influencing the
        current design, and contributed the idea of "none".
      </li>
--- a/doc/html/boost_optional/dependencies_and_portability.html
+++ b/doc/html/boost_optional/dependencies_and_portability.html
@ -1,10 +1,11 @@
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<title>Dependencies and Portability</title>
+<title>Dependencies
    and Portability</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="implementation_notes.html" title="Implementation Notes">
 <link rel="next" href="acknowledgments.html" title="Acknowledgments">
@ -12,19 +13,20 @@
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
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 <td align="center"><a href="../../../../libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
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 </div>
-<div class="section" title="Dependencies and Portability">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.dependencies_and_portability"></a><a class="link" href="dependencies_and_portability.html" title="Dependencies and Portability">Dependencies
+<a name="boost_optional.dependencies_and_portability"></a><a href="dependencies_and_portability.html" title="Dependencies
    and Portability">Dependencies
    and Portability</a>
 </h2></div></div></div>
 <p>
--- a/doc/html/boost_optional/detailed_semantics.html
+++ b/doc/html/boost_optional/detailed_semantics.html
--- a/doc/html/boost_optional/development.html
+++ b/doc/html/boost_optional/development.html
@ -3,8 +3,8 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Development</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
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@ -12,28 +12,28 @@
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
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 </tr></table>
 <hr>
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 </div>
-<div class="section" title="Development">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.development"></a><a class="link" href="development.html" title="Development">Development</a>
+<a name="boost_optional.development"></a><a href="development.html" title="Development">Development</a>
 </h2></div></div></div>
 <div class="toc"><dl>
 <dt><span class="section"><a href="development.html#boost_optional.development.the_models">The models</a></span></dt>
 <dt><span class="section"><a href="development.html#boost_optional.development.the_semantics">The semantics</a></span></dt>
 <dt><span class="section"><a href="development.html#boost_optional.development.the_interface">The Interface</a></span></dt>
 </dl></div>
-<div class="section" title="The models">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.development.the_models"></a><a class="link" href="development.html#boost_optional.development.the_models" title="The models">The models</a>
+<a name="boost_optional.development.the_models"></a><a href="development.html#boost_optional.development.the_models" title="The models">The models</a>
 </h3></div></div></div>
 <p>
        In C++, we can <span class="emphasis"><em>declare</em></span> an object (a variable) of type
@ -110,28 +110,28 @@
 <p>
        Discriminated-union:
      </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
 <span class="bold"><strong>deep-copy</strong></span> semantics: copies of the variant
          implies copies of the value.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>deep-relational</strong></span> semantics: comparisons
          between variants matches both current types and values
        </li>
-<li class="listitem">
+<li>
          If the variant's current type is <code class="computeroutput"><span class="identifier">T</span></code>,
          it is modeling an <span class="emphasis"><em>initialized</em></span> optional.
        </li>
-<li class="listitem">
+<li>
          If the variant's current type is not <code class="computeroutput"><span class="identifier">T</span></code>,
          it is modeling an <span class="emphasis"><em>uninitialized</em></span> optional.
        </li>
-<li class="listitem">
+<li>
          Testing if the variant's current type is <code class="computeroutput"><span class="identifier">T</span></code>
          models testing if the optional is initialized
        </li>
-<li class="listitem">
+<li>
          Trying to extract a <code class="computeroutput"><span class="identifier">T</span></code> from
          a variant when its current type is not <code class="computeroutput"><span class="identifier">T</span></code>,
          models the undefined behavior of trying to access the value of an uninitialized
@ -141,36 +141,36 @@
 <p>
        Single-element container:
      </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
 <span class="bold"><strong>deep-copy</strong></span> semantics: copies of the container
          implies copies of the value.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>deep-relational</strong></span> semantics: comparisons
          between containers compare container size and if match, contained value
        </li>
-<li class="listitem">
+<li>
          If the container is not empty (contains an object of type <code class="computeroutput"><span class="identifier">T</span></code>), it is modeling an <span class="emphasis"><em>initialized</em></span>
          optional.
        </li>
-<li class="listitem">
+<li>
          If the container is empty, it is modeling an <span class="emphasis"><em>uninitialized</em></span>
          optional.
        </li>
-<li class="listitem">
+<li>
          Testing if the container is empty models testing if the optional is initialized
        </li>
-<li class="listitem">
+<li>
          Trying to extract a <code class="computeroutput"><span class="identifier">T</span></code> from
          an empty container models the undefined behavior of trying to access the
          value of an uninitialized optional
        </li>
 </ul></div>
 </div>
-<div class="section" title="The semantics">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.development.the_semantics"></a><a class="link" href="development.html#boost_optional.development.the_semantics" title="The semantics">The semantics</a>
+<a name="boost_optional.development.the_semantics"></a><a href="development.html#boost_optional.development.the_semantics" title="The semantics">The semantics</a>
 </h3></div></div></div>
 <p>
        Objects of type <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
@ -193,55 +193,55 @@
        We can draw from the purpose of <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
        the required basic semantics:
      </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
 <span class="bold"><strong>Default Construction:</strong></span> To introduce a formally
          uninitialized wrapped object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Direct Value Construction via copy:</strong></span> To
          introduce a formally initialized wrapped object whose value is obtained
          as a copy of some object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Deep Copy Construction:</strong></span> To obtain a new
          yet equivalent wrapped object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Direct Value Assignment (upon initialized):</strong></span>
          To assign a value to the wrapped object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Direct Value Assignment (upon uninitialized):</strong></span>
          To initialize the wrapped object with a value obtained as a copy of some
          object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Assignment (upon initialized):</strong></span> To assign
          to the wrapped object the value of another wrapped object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Assignment (upon uninitialized):</strong></span> To initialize
          the wrapped object with value of another wrapped object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Deep Relational Operations (when supported by the
          type T):</strong></span> To compare wrapped object values taking into account
          the presence of uninitialized states.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Value access:</strong></span> To unwrap the wrapped object.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Initialization state query:</strong></span> To determine
          if the object is formally initialized or not.
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>Swap:</strong></span> To exchange wrapped objects. (with
          whatever exception safety guarantees are provided by <code class="computeroutput"><span class="identifier">T</span></code>'s
          swap).
        </li>
-<li class="listitem">
+<li>
 <span class="bold"><strong>De-initialization:</strong></span> To release the wrapped
          object (if any) and leave the wrapper in the uninitialized state.
        </li>
@ -252,9 +252,9 @@
        via a pointer to the wrapped object or null.
      </p>
 </div>
-<div class="section" title="The Interface">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.development.the_interface"></a><a class="link" href="development.html#boost_optional.development.the_interface" title="The Interface">The Interface</a>
+<a name="boost_optional.development.the_interface"></a><a href="development.html#boost_optional.development.the_interface" title="The Interface">The Interface</a>
 </h3></div></div></div>
 <p>
        Since the purpose of optional is to allow us to use objects with a formal
@ -292,8 +292,8 @@
        itself which are supported by a special interface.
      </p>
 <a name="boost_optional.development.the_interface.lexically_hinted_value_access_in_the_presence_of_possibly_untitialized_optional_objects__the_operators___and___gt_"></a><h5>
-<a name="id555569"></a>
+<a name="id2615375"></a>
-        <a class="link" href="development.html#boost_optional.development.the_interface.lexically_hinted_value_access_in_the_presence_of_possibly_untitialized_optional_objects__the_operators___and___gt_">Lexically-hinted
+        <a href="development.html#boost_optional.development.the_interface.lexically_hinted_value_access_in_the_presence_of_possibly_untitialized_optional_objects__the_operators___and___gt_">Lexically-hinted
        Value Access in the presence of possibly untitialized optional objects: The
        operators * and -&gt;</a>
      </h5>
@ -357,8 +357,8 @@
        incarnated by pointers.
      </p>
 <a name="boost_optional.development.the_interface.optional_lt_t_gt__as_a_model_of_optionalpointee"></a><h5>
-<a name="id555831"></a>
+<a name="id2615714"></a>
-        <a class="link" href="development.html#boost_optional.development.the_interface.optional_lt_t_gt__as_a_model_of_optionalpointee">Optional&lt;T&gt;
+        <a href="development.html#boost_optional.development.the_interface.optional_lt_t_gt__as_a_model_of_optionalpointee">Optional&lt;T&gt;
        as a model of OptionalPointee</a>
      </h5>
 <p>
@ -367,7 +367,7 @@
        about the possibly uninitialized state appealing to the familiar pointer
        semantics w.r.t. to null pointers.
      </p>
-<div class="warning" title="Warning"><table border="0" summary="Warning">
+<div class="warning"><table border="0" summary="Warning">
 <tr>
 <td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../../../../../doc/html/images/warning.png"></td>
 <th align="left">Warning</th>
--- a/doc/html/boost_optional/examples.html
+++ b/doc/html/boost_optional/examples.html
@ -3,8 +3,8 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Examples</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="detailed_semantics.html" title="Detailed Semantics">
 <link rel="next" href="optional_references.html" title="Optional references">
@ -12,19 +12,19 @@
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <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>
+<td align="center"><a href="../../../../../index.htm">Home</a></td>
 <td align="center"><a href="../../../../libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../../more/index.htm">More</a></td>
 </tr></table>
 <hr>
 <div class="spirit-nav">
 <a accesskey="p" href="detailed_semantics.html"><img src="../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="optional_references.html"><img src="../../../../../doc/html/images/next.png" alt="Next"></a>
 </div>
-<div class="section" title="Examples">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.examples"></a><a class="link" href="examples.html" title="Examples">Examples</a>
+<a name="boost_optional.examples"></a><a href="examples.html" title="Examples">Examples</a>
 </h2></div></div></div>
 <div class="toc"><dl>
 <dt><span class="section"><a href="examples.html#boost_optional.examples.optional_return_values">Optional
@ -36,12 +36,14 @@
 <dt><span class="section"><a href="examples.html#boost_optional.examples.bypassing_expensive_unnecessary_default_construction">Bypassing
      expensive unnecessary default construction</a></span></dt>
 </dl></div>
-<div class="section" title="Optional return values">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.examples.optional_return_values"></a><a class="link" href="examples.html#boost_optional.examples.optional_return_values" title="Optional return values">Optional
+<a name="boost_optional.examples.optional_return_values"></a><a href="examples.html#boost_optional.examples.optional_return_values" title="Optional
      return values">Optional
      return values</a>
 </h3></div></div></div>
-<pre class="programlisting"><span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">get_async_input</span><span class="special">()</span>
+<pre class="programlisting">
 <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">get_async_input</span><span class="special">()</span>
 <span class="special">{</span>
    <span class="keyword">if</span> <span class="special">(</span> <span class="special">!</span><span class="identifier">queue</span><span class="special">.</span><span class="identifier">empty</span><span class="special">()</span> <span class="special">)</span>
        <span class="keyword">return</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;(</span><span class="identifier">queue</span><span class="special">.</span><span class="identifier">top</span><span class="special">());</span>
@ -57,12 +59,14 @@
 <span class="special">}</span>
 </pre>
 </div>
-<div class="section" title="Optional local variables">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.examples.optional_local_variables"></a><a class="link" href="examples.html#boost_optional.examples.optional_local_variables" title="Optional local variables">Optional
+<a name="boost_optional.examples.optional_local_variables"></a><a href="examples.html#boost_optional.examples.optional_local_variables" title="Optional
      local variables">Optional
      local variables</a>
 </h3></div></div></div>
-<pre class="programlisting"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</span> <span class="identifier">name</span> <span class="special">;</span>
+<pre class="programlisting">
 <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</span> <span class="identifier">name</span> <span class="special">;</span>
 <span class="keyword">if</span> <span class="special">(</span> <span class="identifier">database</span><span class="special">.</span><span class="identifier">open</span><span class="special">()</span> <span class="special">)</span>
 <span class="special">{</span>
    <span class="identifier">name</span><span class="special">.</span><span class="identifier">reset</span> <span class="special">(</span> <span class="identifier">database</span><span class="special">.</span><span class="identifier">lookup</span><span class="special">(</span><span class="identifier">employer_name</span><span class="special">)</span> <span class="special">)</span> <span class="special">;</span>
@ -78,12 +82,14 @@
 <span class="keyword">else</span> <span class="identifier">print</span><span class="special">(</span><span class="string">"employer's name not found!"</span><span class="special">);</span>
 </pre>
 </div>
-<div class="section" title="Optional data members">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.examples.optional_data_members"></a><a class="link" href="examples.html#boost_optional.examples.optional_data_members" title="Optional data members">Optional
+<a name="boost_optional.examples.optional_data_members"></a><a href="examples.html#boost_optional.examples.optional_data_members" title="Optional
      data members">Optional
      data members</a>
 </h3></div></div></div>
-<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">figure</span>
+<pre class="programlisting">
 <span class="keyword">class</span> <span class="identifier">figure</span>
 <span class="special">{</span>
    <span class="keyword">public</span><span class="special">:</span>
@ -116,12 +122,14 @@
 <span class="special">};</span>
 </pre>
 </div>
-<div class="section" title="Bypassing expensive unnecessary default construction">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h3 class="title">
-<a name="boost_optional.examples.bypassing_expensive_unnecessary_default_construction"></a><a class="link" href="examples.html#boost_optional.examples.bypassing_expensive_unnecessary_default_construction" title="Bypassing expensive unnecessary default construction">Bypassing
+<a name="boost_optional.examples.bypassing_expensive_unnecessary_default_construction"></a><a href="examples.html#boost_optional.examples.bypassing_expensive_unnecessary_default_construction" title="Bypassing
      expensive unnecessary default construction">Bypassing
      expensive unnecessary default construction</a>
 </h3></div></div></div>
-<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">ExpensiveCtor</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span> <span class="special">;</span>
+<pre class="programlisting">
 <span class="keyword">class</span> <span class="identifier">ExpensiveCtor</span> <span class="special">{</span> <span class="special">...</span> <span class="special">}</span> <span class="special">;</span>
 <span class="keyword">class</span> <span class="identifier">Fred</span>
 <span class="special">{</span>
    <span class="identifier">Fred</span><span class="special">()</span> <span class="special">:</span> <span class="identifier">mLargeVector</span><span class="special">(</span><span class="number">10000</span><span class="special">)</span> <span class="special">{}</span>
--- a/doc/html/boost_optional/exception_safety_guarantees.html
+++ b/doc/html/boost_optional/exception_safety_guarantees.html
@ -1,51 +1,54 @@
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<title>Exception Safety Guarantees</title>
+<title>Exception Safety
    Guarantees</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
-<link rel="prev" href="a_note_about_optional_bool_.html" title="A note about optional&lt;bool&gt;">
+<link rel="prev" href="a_note_about_optional_bool_.html" title="A note about
    optional&lt;bool&gt;">
 <link rel="next" href="type_requirements.html" title="Type requirements">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <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>
+<td align="center"><a href="../../../../../index.htm">Home</a></td>
 <td align="center"><a href="../../../../libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../../more/index.htm">More</a></td>
 </tr></table>
 <hr>
 <div class="spirit-nav">
 <a accesskey="p" href="a_note_about_optional_bool_.html"><img src="../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="type_requirements.html"><img src="../../../../../doc/html/images/next.png" alt="Next"></a>
 </div>
-<div class="section" title="Exception Safety Guarantees">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.exception_safety_guarantees"></a><a class="link" href="exception_safety_guarantees.html" title="Exception Safety Guarantees">Exception Safety
+<a name="boost_optional.exception_safety_guarantees"></a><a href="exception_safety_guarantees.html" title="Exception Safety
    Guarantees">Exception Safety
    Guarantees</a>
 </h2></div></div></div>
 <p>
-      Because of the current implementation (see <a class="link" href="implementation_notes.html" title="Implementation Notes">Implementation
+      Because of the current implementation (see <a href="../index.html#optional_implementation_notes">Implementation
      Notes</a>), all of the assignment methods:
    </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span>
+<li><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span>
        <span class="keyword">const</span><span class="special">&amp;</span>
        <span class="special">)</span></code></li>
-<li class="listitem"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="special">)</span></code></li>
+<li><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="special">)</span></code></li>
-<li class="listitem"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span>
+<li><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span>
        <span class="keyword">const</span><span class="special">&amp;</span>
        <span class="special">)</span></code></li>
-<li class="listitem"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">InPlaceFactory</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">InPlaceFactory</span>
+<li><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">InPlaceFactory</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">InPlaceFactory</span>
        <span class="keyword">const</span><span class="special">&amp;</span>
        <span class="special">)</span></code></li>
-<li class="listitem"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">TypedInPlaceFactory</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory</span>
+<li><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">TypedInPlaceFactory</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory</span>
        <span class="keyword">const</span><span class="special">&amp;</span>
        <span class="special">)</span> </code></li>
-<li class="listitem"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;:::</span><span class="identifier">reset</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;)</span></code></li>
+<li><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;:::</span><span class="identifier">reset</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;)</span></code></li>
 </ul></div>
 <p>
      Can only <span class="emphasis"><em>guarantee</em></span> the <span class="underline">basic
@ -56,9 +59,9 @@
 <p>
      On the other hand, the <span class="emphasis"><em>uninitializing</em></span> methods:
    </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">none_t</span> <span class="special">)</span></code></li>
+<li><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="keyword">operator</span><span class="special">=</span> <span class="special">(</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">none_t</span> <span class="special">)</span></code></li>
-<li class="listitem"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">reset</span><span class="special">()</span></code></li>
+<li><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">reset</span><span class="special">()</span></code></li>
 </ul></div>
 <p>
      Provide the no-throw guarantee (assuming a no-throw <code class="computeroutput"><span class="identifier">T</span><span class="special">::~</span><span class="identifier">T</span><span class="special">()</span></code>)
@ -72,7 +75,8 @@
      know that <code class="computeroutput"><span class="identifier">optional</span></code>'s assignment
      and reset has the same guarantees.
    </p>
-<pre class="programlisting"><span class="comment">//
+<pre class="programlisting">
 <span class="comment">//
 </span><span class="comment">// Case 1: Exception thrown during assignment.
 </span><span class="comment">//
 </span><span class="identifier">T</span> <span class="identifier">v0</span><span class="special">(</span><span class="number">123</span><span class="special">);</span>
@ -112,8 +116,8 @@
 <span class="special">}</span>
 </pre>
 <a name="boost_optional.exception_safety_guarantees.swap"></a><h4>
-<a name="id583497"></a>
+<a name="id2644478"></a>
-      <a class="link" href="exception_safety_guarantees.html#boost_optional.exception_safety_guarantees.swap">Swap</a>
+      <a href="exception_safety_guarantees.html#boost_optional.exception_safety_guarantees.swap">Swap</a>
    </h4>
 <p>
      <code class="computeroutput"><span class="keyword">void</span> <span class="identifier">swap</span><span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;,</span>
--- a/doc/html/boost_optional/implementation_notes.html
+++ b/doc/html/boost_optional/implementation_notes.html
@ -3,28 +3,29 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Implementation Notes</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
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 </div>
-<div class="section" title="Implementation Notes">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.implementation_notes"></a><a class="link" href="implementation_notes.html" title="Implementation Notes">Implementation Notes</a>
+<a name="boost_optional.implementation_notes"></a><a href="implementation_notes.html" title="Implementation Notes">Implementation Notes</a>
 </h2></div></div></div>
 <p>
      <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> is
--- a/doc/html/boost_optional/in_place_factories.html
+++ b/doc/html/boost_optional/in_place_factories.html
@ -3,28 +3,30 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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-<link rel="prev" href="rebinding_semantics_for_assignment_of_optional_references.html" title="Rebinding semantics for assignment of optional references">
+<link rel="prev" href="rebinding_semantics_for_assignment_of_optional_references.html" title="Rebinding
-<link rel="next" href="a_note_about_optional_bool_.html" title="A note about optional&lt;bool&gt;">
+    semantics for assignment of optional references">
 <link rel="next" href="a_note_about_optional_bool_.html" title="A note about
    optional&lt;bool&gt;">
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 </div>
-<div class="section" title="In-Place Factories">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.in_place_factories"></a><a class="link" href="in_place_factories.html" title="In-Place Factories">In-Place Factories</a>
+<a name="boost_optional.in_place_factories"></a><a href="in_place_factories.html" title="In-Place Factories">In-Place Factories</a>
 </h2></div></div></div>
 <p>
      One of the typical problems with wrappers and containers is that their interfaces
@ -34,7 +36,8 @@
      but also requires the existence of a fully constructed object, often temporary,
      just to follow the copy from:
    </p>
-<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">X</span>
+<pre class="programlisting">
 <span class="keyword">struct</span> <span class="identifier">X</span>
 <span class="special">{</span>
    <span class="identifier">X</span> <span class="special">(</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">std</span><span class="special">:::</span><span class="identifier">string</span> <span class="special">)</span> <span class="special">;</span>
 <span class="special">}</span> <span class="special">;</span>
@ -59,7 +62,8 @@
      object right in the container's storage. In this scheme, the user only needs
      to supply the arguments to the constructor to use in the wrapped object construction.
    </p>
-<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">W</span>
+<pre class="programlisting">
 <span class="keyword">class</span> <span class="identifier">W</span>
 <span class="special">{</span>
    <span class="identifier">X</span> <span class="identifier">wrapped_</span> <span class="special">;</span>
@ -92,7 +96,8 @@
 <p>
      For example, one member of this family looks like:
    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">A0</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">A1</span><span class="special">&gt;</span>
+<pre class="programlisting">
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">A0</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">A1</span><span class="special">&gt;</span>
 <span class="keyword">class</span> <span class="identifier">TypedInPlaceFactory2</span>
 <span class="special">{</span>
    <span class="identifier">A0</span> <span class="identifier">m_a0</span> <span class="special">;</span> <span class="identifier">A1</span> <span class="identifier">m_a1</span> <span class="special">;</span>
@ -107,7 +112,8 @@
 <p>
      A wrapper class aware of this can use it as:
    </p>
-<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">W</span>
+<pre class="programlisting">
 <span class="keyword">class</span> <span class="identifier">W</span>
 <span class="special">{</span>
    <span class="identifier">X</span> <span class="identifier">wrapped_</span> <span class="special">;</span>
@ -121,18 +127,18 @@
 <span class="special">{</span>
    <span class="comment">// Wrapped object constructed in-place via a TypedInPlaceFactory.
 </span>    <span class="comment">// No temporary created.
-</span>    <span class="identifier">W</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory2</span><span class="special">&lt;</span><span class="identifier">X</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;(</span><span class="number">123</span><span class="special">,</span><span class="string">"hello"</span><span class="special">))</span> <span class="special">;</span>
+</span>    <span class="identifier">W</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory2</span><span class="special">&lt;</span><span class="identifier">X</span><span class="special">,</span><span class="keyword">int</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&amp;</span><span class="identifier">rt</span><span class="special">(</span><span class="number">123</span><span class="special">,</span><span class="string">"hello"</span><span class="special">))</span> <span class="special">;</span>
 <span class="special">}</span>
 </pre>
 <p>
      The factories are divided in two groups:
    </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
 <span class="underline">TypedInPlaceFactories</span>: those which
        take the target type as a primary template parameter.
      </li>
-<li class="listitem">
+<li>
 <span class="underline">InPlaceFactories</span>: those with a template
        <code class="computeroutput"><span class="identifier">construct</span><span class="special">(</span><span class="keyword">void</span><span class="special">*)</span></code> member
        function taking the target type.
@ -146,7 +152,8 @@
      This library provides an overloaded set of helper template functions to construct
      these factories without requiring unnecessary template parameters:
    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A0</span><span class="special">,...,</span><span class="keyword">class</span> <span class="identifier">AN</span><span class="special">&gt;</span>
+<pre class="programlisting">
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A0</span><span class="special">,...,</span><span class="keyword">class</span> <span class="identifier">AN</span><span class="special">&gt;</span>
 <span class="identifier">InPlaceFactoryN</span> <span class="special">&lt;</span><span class="identifier">A0</span><span class="special">,...,</span><span class="identifier">AN</span><span class="special">&gt;</span> <span class="identifier">in_place</span> <span class="special">(</span> <span class="identifier">A0</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">a0</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">AN</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">aN</span><span class="special">)</span> <span class="special">;</span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">A0</span><span class="special">,...,</span><span class="keyword">class</span> <span class="identifier">AN</span><span class="special">&gt;</span>
@ -155,7 +162,8 @@
 <p>
      In-place factories can be used generically by the wrapper and user as follows:
    </p>
-<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">W</span>
+<pre class="programlisting">
 <span class="keyword">class</span> <span class="identifier">W</span>
 <span class="special">{</span>
    <span class="identifier">X</span> <span class="identifier">wrapped_</span> <span class="special">;</span>
--- a/doc/html/boost_optional/optional_references.html
+++ b/doc/html/boost_optional/optional_references.html
@ -3,28 +3,29 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Optional references</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="examples.html" title="Examples">
-<link rel="next" href="rebinding_semantics_for_assignment_of_optional_references.html" title="Rebinding semantics for assignment of optional references">
+<link rel="next" href="rebinding_semantics_for_assignment_of_optional_references.html" title="Rebinding
    semantics for assignment of optional references">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
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 </div>
-<div class="section" title="Optional references">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.optional_references"></a><a class="link" href="optional_references.html" title="Optional references">Optional references</a>
+<a name="boost_optional.optional_references"></a><a href="optional_references.html" title="Optional references">Optional references</a>
 </h2></div></div></div>
 <p>
      This library allows the template parameter <code class="computeroutput"><span class="identifier">T</span></code>
@ -35,20 +36,20 @@
      However, since references are not real objects some restrictions apply and
      some operations are not available in this case:
    </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
        Converting constructors
      </li>
-<li class="listitem">
+<li>
        Converting assignment
      </li>
-<li class="listitem">
+<li>
        InPlace construction
      </li>
-<li class="listitem">
+<li>
        InPlace assignment
      </li>
-<li class="listitem">
+<li>
        Value-access via pointer
      </li>
 </ul></div>
@ -57,13 +58,13 @@
      treats it wrapped pseudo-object much as a real value, a true real reference
      is stored so aliasing will ocurr:
    </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
        Copies of <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&amp;&gt;</span></code>
        will copy the references but all these references will nonetheless reefer
        to the same object.
      </li>
-<li class="listitem">
+<li>
        Value-access will actually provide access to the referenced object rather
        than the reference itself.
      </li>
--- a/doc/html/boost_optional/rebinding_semantics_for_assignment_of_optional_references.html
+++ b/doc/html/boost_optional/rebinding_semantics_for_assignment_of_optional_references.html
@ -1,10 +1,11 @@
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<title>Rebinding semantics for assignment of optional references</title>
+<title>Rebinding
    semantics for assignment of optional references</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
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+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="optional_references.html" title="Optional references">
 <link rel="next" href="in_place_factories.html" title="In-Place Factories">
@ -12,19 +13,20 @@
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
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+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
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+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../../more/index.htm">More</a></td>
 </tr></table>
 <hr>
 <div class="spirit-nav">
 <a accesskey="p" href="optional_references.html"><img src="../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="in_place_factories.html"><img src="../../../../../doc/html/images/next.png" alt="Next"></a>
 </div>
-<div class="section" title="Rebinding semantics for assignment of optional references">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.rebinding_semantics_for_assignment_of_optional_references"></a><a class="link" href="rebinding_semantics_for_assignment_of_optional_references.html" title="Rebinding semantics for assignment of optional references">Rebinding
+<a name="boost_optional.rebinding_semantics_for_assignment_of_optional_references"></a><a href="rebinding_semantics_for_assignment_of_optional_references.html" title="Rebinding
    semantics for assignment of optional references">Rebinding
    semantics for assignment of optional references</a>
 </h2></div></div></div>
 <p>
@ -32,7 +34,8 @@
      the effect is to bind (for the first time) to the object. Clearly, there is
      no other choice.
    </p>
-<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">x</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
+<pre class="programlisting">
 <span class="keyword">int</span> <span class="identifier">x</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
 <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">rx</span> <span class="special">=</span> <span class="identifier">x</span> <span class="special">;</span>
 <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&amp;&gt;</span> <span class="identifier">ora</span> <span class="special">;</span>
 <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&amp;&gt;</span> <span class="identifier">orb</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span> <span class="special">;</span>
@ -44,7 +47,8 @@
      If you assign to a bare C++ reference, the assignment is forwarded to the referenced
      object; it's value changes but the reference is never rebound.
    </p>
-<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
+<pre class="programlisting">
 <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
 <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">ra</span> <span class="special">=</span> <span class="identifier">a</span> <span class="special">;</span>
 <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">2</span> <span class="special">;</span>
 <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">rb</span> <span class="special">=</span> <span class="identifier">b</span> <span class="special">;</span>
@ -58,7 +62,8 @@
      the effect is to <span class="bold"><strong>rebind</strong></span> to the new object
      instead of assigning the referee. This is unlike bare C++ references.
    </p>
-<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
+<pre class="programlisting">
 <span class="keyword">int</span> <span class="identifier">a</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
 <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">2</span> <span class="special">;</span>
 <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">ra</span> <span class="special">=</span> <span class="identifier">a</span> <span class="special">;</span>
 <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">rb</span> <span class="special">=</span> <span class="identifier">b</span> <span class="special">;</span>
@ -70,8 +75,8 @@
 <span class="identifier">assert</span><span class="special">(</span><span class="identifier">b</span><span class="special">==</span><span class="number">3</span><span class="special">);</span> 
 </pre>
 <a name="boost_optional.rebinding_semantics_for_assignment_of_optional_references.rationale"></a><h4>
-<a name="id579234"></a>
+<a name="id2640074"></a>
-      <a class="link" href="rebinding_semantics_for_assignment_of_optional_references.html#boost_optional.rebinding_semantics_for_assignment_of_optional_references.rationale">Rationale</a>
+      <a href="rebinding_semantics_for_assignment_of_optional_references.html#boost_optional.rebinding_semantics_for_assignment_of_optional_references.rationale">Rationale</a>
    </h4>
 <p>
      Rebinding semantics for the assignment of <span class="emphasis"><em>initialized </em></span>
@ -90,7 +95,8 @@
      forwarding assignment to the referenced object (thus changing the referenced
      object value but not rebinding), and consider the following code:
    </p>
-<pre class="programlisting"><span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&amp;&gt;</span> <span class="identifier">a</span> <span class="special">=</span> <span class="identifier">get</span><span class="special">();</span>
+<pre class="programlisting">
 <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&amp;&gt;</span> <span class="identifier">a</span> <span class="special">=</span> <span class="identifier">get</span><span class="special">();</span>
 <span class="keyword">int</span> <span class="identifier">x</span> <span class="special">=</span> <span class="number">1</span> <span class="special">;</span>
 <span class="keyword">int</span><span class="special">&amp;</span> <span class="identifier">rx</span> <span class="special">=</span> <span class="identifier">x</span> <span class="special">;</span>
 <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&amp;&gt;</span> <span class="identifier">b</span><span class="special">(</span><span class="identifier">rx</span><span class="special">);</span>
@ -128,7 +134,8 @@
      for the first time is OK while rebinding is not which is IMO very unlikely.
      In such scenario, you can assign the value itself directly, as in:
    </p>
-<pre class="programlisting"><span class="identifier">assert</span><span class="special">(!!</span><span class="identifier">opt</span><span class="special">);</span>
+<pre class="programlisting">
 <span class="identifier">assert</span><span class="special">(!!</span><span class="identifier">opt</span><span class="special">);</span>
 <span class="special">*</span><span class="identifier">opt</span><span class="special">=</span><span class="identifier">value</span><span class="special">;</span>
 </pre>
 </div>
--- a/doc/html/boost_optional/synopsis.html
+++ b/doc/html/boost_optional/synopsis.html
@ -3,8 +3,8 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Synopsis</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="prev" href="development.html" title="Development">
 <link rel="next" href="detailed_semantics.html" title="Detailed Semantics">
@ -12,21 +12,22 @@
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <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>
+<td align="center"><a href="../../../../../index.htm">Home</a></td>
 <td align="center"><a href="../../../../libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../../more/index.htm">More</a></td>
 </tr></table>
 <hr>
 <div class="spirit-nav">
 <a accesskey="p" href="development.html"><img src="../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="detailed_semantics.html"><img src="../../../../../doc/html/images/next.png" alt="Next"></a>
 </div>
-<div class="section" title="Synopsis">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.synopsis"></a><a class="link" href="synopsis.html" title="Synopsis">Synopsis</a>
+<a name="boost_optional.synopsis"></a><a href="synopsis.html" title="Synopsis">Synopsis</a>
 </h2></div></div></div>
-<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
+<pre class="programlisting">
 <span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
 <span class="keyword">class</span> <span class="identifier">optional</span>
@ -35,101 +36,101 @@
    <span class="comment">// (If T is of reference type, the parameters and results by reference are by value)
 </span>
-    <span class="identifier">optional</span> <span class="special">()</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">optional</span> <span class="special">()</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">none_t</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_none_t"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">none_t</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_none_t"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="comment">// [new in 1.34]
-</span>    <span class="identifier">optional</span> <span class="special">(</span> <span class="keyword">bool</span> <span class="identifier">condition</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_bool_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a> 
+</span>    <span class="identifier">optional</span> <span class="special">(</span> <span class="keyword">bool</span> <span class="identifier">condition</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_bool_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a> 
-    <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">optional</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">optional</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">explicit</span> <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_other_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">explicit</span> <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_other_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">InPlaceFactory</span><span class="special">&gt;</span> <span class="keyword">explicit</span> <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">InPlaceFactory</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_factory"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">InPlaceFactory</span><span class="special">&gt;</span> <span class="keyword">explicit</span> <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">InPlaceFactory</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_factory"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">TypedInPlaceFactory</span><span class="special">&gt;</span> <span class="keyword">explicit</span> <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_constructor_factory"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">TypedInPlaceFactory</span><span class="special">&gt;</span> <span class="keyword">explicit</span> <span class="identifier">optional</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_constructor_factory"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">none_t</span> <span class="special">)</span> <span class="special">;</span> 
-    <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_equal_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_equal_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_equal_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_equal_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_equal_other_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">rhs</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_equal_other_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">InPlaceFactory</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">InPlaceFactory</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span> <span class="special">)</span> <span class="special">;</span> 
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">TypedInPlaceFactory</span><span class="special">&gt;</span> <span class="identifier">optional</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">=</span> <span class="special">(</span> <span class="identifier">TypedInPlaceFactory</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">f</span> <span class="special">)</span> <span class="special">;</span> 
-    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">T</span><span class="special">&amp;</span>       <span class="identifier">get</span><span class="special">()</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span><span class="special">&amp;</span>       <span class="identifier">get</span><span class="special">()</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="comment">// [new in 1.34]
-</span>    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get_value_or</span><span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="keyword">default</span> <span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get_value_or_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a> 
+</span>    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get_value_or</span><span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="keyword">default</span> <span class="special">)</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get_value_or_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a> 
-    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="keyword">operator</span> <span class="special">-&gt;()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_arrow"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="keyword">operator</span> <span class="special">-&gt;()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_arrow"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">T</span><span class="special">*</span>       <span class="keyword">operator</span> <span class="special">-&gt;()</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_arrow"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span><span class="special">*</span>       <span class="keyword">operator</span> <span class="special">-&gt;()</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_arrow"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">*()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="keyword">operator</span> <span class="special">*()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">T</span><span class="special">&amp;</span>       <span class="keyword">operator</span> <span class="special">*()</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span><span class="special">&amp;</span>       <span class="keyword">operator</span> <span class="special">*()</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">get_ptr</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">get_ptr</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="identifier">T</span><span class="special">*</span>       <span class="identifier">get_ptr</span><span class="special">()</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="identifier">T</span><span class="special">*</span>       <span class="identifier">get_ptr</span><span class="special">()</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="keyword">operator</span> <span class="identifier">unspecified</span><span class="special">-</span><span class="keyword">bool</span><span class="special">-</span><span class="identifier">type</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_bool"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="keyword">operator</span> <span class="identifier">unspecified</span><span class="special">-</span><span class="keyword">bool</span><span class="special">-</span><span class="identifier">type</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_bool"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-    <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_operator_not"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+    <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_operator_not"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="comment">// deprecated methods
 </span>
    <span class="comment">// (deprecated)
-</span>    <span class="keyword">void</span> <span class="identifier">reset</span><span class="special">()</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_reset"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+</span>    <span class="keyword">void</span> <span class="identifier">reset</span><span class="special">()</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_reset"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="comment">// (deprecated)
-</span>    <span class="keyword">void</span> <span class="identifier">reset</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_reset_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+</span>    <span class="keyword">void</span> <span class="identifier">reset</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_reset_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
    <span class="comment">// (deprecated)
-</span>    <span class="keyword">bool</span> <span class="identifier">is_initialized</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_is_initialized"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+</span>    <span class="keyword">bool</span> <span class="identifier">is_initialized</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_is_initialized"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
 <span class="special">};</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">==</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_operator_compare_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">==</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_operator_compare_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">!=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_operator_compare_not_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">!=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_operator_compare_not_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&lt;</span>  <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_operator_compare_less_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&lt;</span>  <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_operator_compare_less_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&gt;</span>  <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_operator_compare_greater_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&gt;</span>  <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_operator_compare_greater_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&lt;=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_operator_compare_less_or_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&lt;=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_operator_compare_less_or_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&gt;=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_operator_compare_greater_or_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">bool</span> <span class="keyword">operator</span> <span class="special">&gt;=</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_operator_compare_greater_or_equal_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
 <span class="comment">// [new in 1.34]
-</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="identifier">make_optional</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_make_optional_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="identifier">make_optional</span> <span class="special">(</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_make_optional_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
 <span class="comment">// [new in 1.34]
-</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="identifier">make_optional</span> <span class="special">(</span> <span class="keyword">bool</span> <span class="identifier">condition</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_make_optional_bool_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="identifier">make_optional</span> <span class="special">(</span> <span class="keyword">bool</span> <span class="identifier">condition</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_make_optional_bool_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
 <span class="comment">// [new in 1.34]
-</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get_optional_value_or</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">opt</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="keyword">default</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get_value_or_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a> 
+</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get_optional_value_or</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">opt</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="keyword">default</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get_value_or_value"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a> 
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span><span class="special">&amp;</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span><span class="special">&amp;</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;*</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">get</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;*</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">get_pointer</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">get_pointer</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">get_pointer</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">get_pointer</span> <span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&amp;</span> <span class="identifier">opt</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_optional_get_ptr"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">void</span> <span class="identifier">swap</span><span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a class="link" href="detailed_semantics.html#reference_swap_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
+<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">inline</span> <span class="keyword">void</span> <span class="identifier">swap</span><span class="special">(</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">y</span> <span class="special">)</span> <span class="special">;</span> <a href="detailed_semantics.html#reference_swap_optional_optional"><span class="inlinemediaobject"><img src="../images/callouts/R.png" alt="R"></span></a>
 <span class="special">}</span> <span class="comment">// namespace boost
 </span></pre>
--- a/doc/html/boost_optional/type_requirements.html
+++ b/doc/html/boost_optional/type_requirements.html
@ -3,28 +3,29 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Type requirements</title>
 <link rel="stylesheet" href="../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="up" href="../index.html" title="Chapter<65>1.<2E>Boost.Optional">
-<link rel="prev" href="exception_safety_guarantees.html" title="Exception Safety Guarantees">
+<link rel="prev" href="exception_safety_guarantees.html" title="Exception Safety
    Guarantees">
 <link rel="next" href="implementation_notes.html" title="Implementation Notes">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <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>
+<td align="center"><a href="../../../../../index.htm">Home</a></td>
 <td align="center"><a href="../../../../libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../../more/index.htm">More</a></td>
 </tr></table>
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 </div>
-<div class="section" title="Type requirements">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_optional.type_requirements"></a><a class="link" href="type_requirements.html" title="Type requirements">Type requirements</a>
+<a name="boost_optional.type_requirements"></a><a href="type_requirements.html" title="Type requirements">Type requirements</a>
 </h2></div></div></div>
 <p>
      In general, <code class="computeroutput"><span class="identifier">T</span></code> must be <a href="../../../../utility/CopyConstructible.html" target="_top">Copy Constructible</a> and
--- a/doc/html/index.html
+++ b/doc/html/index.html
@ -3,22 +3,22 @@
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <title>Chapter<EFBFBD>1.<2E>Boost.Optional</title>
 <link rel="stylesheet" href="boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
+<meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
-<link rel="home" href="index.html" title="Chapter<65>1.<2E>Boost.Optional">
+<link rel="start" href="index.html" title="Chapter<65>1.<2E>Boost.Optional">
 <link rel="next" href="boost_optional/development.html" title="Development">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <table cellpadding="2" width="100%"><tr>
 <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>
+<td align="center"><a href="../../../../index.htm">Home</a></td>
 <td align="center"><a href="../../../libraries.htm">Libraries</a></td>
-<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
+<td align="center"><a href="http://www.boost.org/people/people.htm">People</a></td>
-<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
+<td align="center"><a href="http://www.boost.org/more/faq.htm">FAQ</a></td>
 <td align="center"><a href="../../../../more/index.htm">More</a></td>
 </tr></table>
 <hr>
 <div class="spirit-nav"><a accesskey="n" href="boost_optional/development.html"><img src="../../../../doc/html/images/next.png" alt="Next"></a></div>
-<div class="chapter" title="Chapter<EFBFBD>1.<2E>Boost.Optional">
+<div class="chapter" lang="en">
 <div class="titlepage"><div>
 <div><h2 class="title">
 <a name="optional"></a>Chapter<EFBFBD>1.<2E>Boost.Optional</h2></div>
@ -26,8 +26,8 @@
 <span class="firstname">Fernando Luis</span> <span class="surname">Cacciola Carballal</span>
 </h3></div></div>
 <div><p class="copyright">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</p></div>
-<div><div class="legalnotice" title="Legal Notice">
+<div><div class="legalnotice">
-<a name="id553943"></a><p>
+<a name="id2604939"></a><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>
@ -71,23 +71,23 @@
 <dt><span class="section"><a href="boost_optional/acknowledgments.html">Acknowledgments</a></span></dt>
 </dl>
 </div>
-<div class="section" title="Motivation">
+<div class="section" lang="en">
 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="optional.motivation"></a><a class="link" href="index.html#optional.motivation" title="Motivation">Motivation</a>
+<a name="optional.motivation"></a><a href="index.html#optional.motivation" title="Motivation">Motivation</a>
 </h2></div></div></div>
 <p>
      Consider these functions which should return a value but which might not have
      a value to return:
    </p>
-<div class="itemizedlist"><ul class="itemizedlist" type="disc">
+<div class="itemizedlist"><ul type="disc">
-<li class="listitem">
+<li>
        (A) <code class="computeroutput"><span class="keyword">double</span> <span class="identifier">sqrt</span><span class="special">(</span><span class="keyword">double</span> <span class="identifier">n</span>
        <span class="special">);</span></code>
 </li>
-<li class="listitem">
+<li>
        (B) <code class="computeroutput"><span class="keyword">char</span> <span class="identifier">get_async_input</span><span class="special">();</span></code>
 </li>
-<li class="listitem">
+<li>
        (C) <code class="computeroutput"><span class="identifier">point</span> <span class="identifier">polygon</span><span class="special">::</span><span class="identifier">get_any_point_effectively_inside</span><span class="special">();</span></code>
 </li>
 </ul></div>
@ -142,14 +142,16 @@
      the function would conceptually return. For example, the last two functions
      could have the following interface:
    </p>
-<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span><span class="keyword">bool</span><span class="special">&gt;</span> <span class="identifier">get_async_input</span><span class="special">();</span>
+<pre class="programlisting">
 <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span><span class="keyword">bool</span><span class="special">&gt;</span> <span class="identifier">get_async_input</span><span class="special">();</span>
 <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">,</span><span class="keyword">bool</span><span class="special">&gt;</span> <span class="identifier">polygon</span><span class="special">::</span><span class="identifier">get_any_point_effectively_inside</span><span class="special">();</span>
 </pre>
 <p>
      These functions use a consistent interface for dealing with possibly inexistent
      results:
    </p>
-<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">,</span><span class="keyword">bool</span><span class="special">&gt;</span> <span class="identifier">p</span> <span class="special">=</span> <span class="identifier">poly</span><span class="special">.</span><span class="identifier">get_any_point_effectively_inside</span><span class="special">();</span>
+<pre class="programlisting">
 <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">,</span><span class="keyword">bool</span><span class="special">&gt;</span> <span class="identifier">p</span> <span class="special">=</span> <span class="identifier">poly</span><span class="special">.</span><span class="identifier">get_any_point_effectively_inside</span><span class="special">();</span>
 <span class="keyword">if</span> <span class="special">(</span> <span class="identifier">p</span><span class="special">.</span><span class="identifier">second</span> <span class="special">)</span>
    <span class="identifier">flood_fill</span><span class="special">(</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">first</span><span class="special">);</span>
 </pre>
@ -164,9 +166,15 @@
 </div>
 <p>
  </p>
 <a name="optional_refassign"></a><p>
  </p>
 <a name="optional_in_place_factories"></a><p>
  </p>
 <a name="optional_implementation_notes"></a><p>
  </p>
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"><p><small>Last revised: November 20, 2009 at 10:24:28 GMT</small></p></td>
+<td align="left"><p><small>Last revised: February 12, 2008 at 22:47:14 GMT</small></p></td>
 <td align="right"><div class="copyright-footer"></div></td>
 </tr></table>
 <hr>
--- a/doc/implementation_notes.qbk
+++ b/doc/implementation_notes.qbk
@ -10,6 +10,8 @@
 [#optional_implementation_notes]
 [section Implementation Notes]
 `optional<T>` is currently implemented using a custom aligned storage facility
--- a/doc/reference.qbk
+++ b/doc/reference.qbk
@ -331,7 +331,7 @@ factory.
 * [*Postconditions: ] `*this` is [_initialized] and its value is ['directly given]
 from the factory `f` (i.e., the value [_is not copied]).
 * [*Throws:] Whatever the `T` constructor called by the factory throws.
-* [*Notes:] See [link boost_optional.in_place_factories In-Place Factories]
+* [*Notes:] See [link optional_in_place_factories In-Place Factories]
 * [*Exception Safety:] Exceptions can only be thrown during the call to
 the `T` constructor used by the factory; in that case, this constructor has
 no effect.
@ -385,7 +385,7 @@ __SPACE__
 * [*Postconditions: ] `*this` is initialized and it references the same
 object referenced by `rhs`.
 * [*Notes:] If `*this` was initialized, is is ['rebound] to the new object.
-See [link boost_optional.rebinding_semantics_for_assignment_of_optional_references here] for details on this behavior.
+See [link optional_refassign here] for details on this behavior.
 * [*Example:]
 ``
 int a = 1 ;
@ -444,7 +444,7 @@ __SPACE__
 references the same object referenced by `*rhs`; otherwise, `*this` is
 uninitialized (and references no object).
 * [*Notes:] If `*this` was initialized and so is *rhs, this is is ['rebound] to
-the new object. See [link boost_optional.rebinding_semantics_for_assignment_of_optional_references here] for details on this behavior.
+the new object. See [link optional_refassign here] for details on this behavior.
 * [*Example:]
 ``
 int a = 1 ;
--- a/doc/special_cases.qbk
+++ b/doc/special_cases.qbk
@ -23,6 +23,8 @@ rather than the reference itself.
 [endsect]
 [#optional_refassign]
 [section Rebinding semantics for assignment of optional references]
 If you assign to an ['uninitialized ] `optional<T&>` the effect is to bind (for
@ -110,6 +112,8 @@ In such scenario, you can assign the value itself directly, as in:
 [endsect]
 [#optional_in_place_factories]
 [section In-Place Factories]
 One of the typical problems with wrappers and containers is that their
@ -201,7 +205,7 @@ A wrapper class aware of this can use it as:
    {
        // Wrapped object constructed in-place via a TypedInPlaceFactory.
        // No temporary created.
-        W ( TypedInPlaceFactory2<X,int,std::string>(123,"hello")) ;
+        W ( TypedInPlaceFactory2<X,int,std::string&rt(123,"hello")) ;
    }
 The factories are divided in two groups:
@ -284,7 +288,7 @@ instead, it won't compile).
 [section Exception Safety Guarantees]
-Because of the current implementation (see [link boost_optional.implementation_notes Implementation Notes]), all of the assignment methods:
+Because of the current implementation (see [link optional_implementation_notes Implementation Notes]), all of the assignment methods:
 * `optional<T>::operator= ( optional<T> const& )`
 * `optional<T>::operator= ( T const& )`
--- a/include/boost/none.hpp
+++ b/include/boost/none.hpp
@ -20,7 +20,7 @@
 namespace boost {
-none_t const none = (static_cast<none_t>(0)) ;
+none_t const none = ((none_t)0) ;
 } // namespace boost
--- a/include/boost/optional/optional.hpp
+++ b/include/boost/optional/optional.hpp
@ -173,10 +173,8 @@ class optional_base : public optional_tag
    typedef BOOST_DEDUCED_TYPENAME is_reference<T>::type is_reference_predicate ;
  public:
    typedef BOOST_DEDUCED_TYPENAME mpl::if_<is_reference_predicate,types_when_ref,types_when_not_ref>::type types ;
  protected:
    typedef bool (this_type::*unspecified_bool_type)() const;
    typedef BOOST_DEDUCED_TYPENAME types::reference_type       reference_type ;
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@ -0,0 +1,13 @@
 boost_test_run(optional_test)
 boost_test_run(optional_test_tie)
 boost_test_run(optional_test_ref)
 boost_test_run(optional_test_inplace)
 boost_test_run(optional_test_io)
 boost_test_compile_fail(optional_test_fail1)
 boost_test_compile_fail(optional_test_fail3a)
 boost_test_compile_fail(optional_test_fail3b)
 boost_test_compile_fail(optional_test_ref_fail1)
 boost_test_compile_fail(optional_test_ref_fail3)
 boost_test_compile_fail(optional_test_ref_fail4)
 boost_test_compile_fail(optional_test_inplace_fail)
 boost_test_compile_fail(optional_test_inplace_fail2)
--- a/test/optional_test_ref.cpp
+++ b/test/optional_test_ref.cpp
@ -342,14 +342,14 @@ void test_binding()
  int i = 0 ;
  optional<int&> ori1 = i ;
  BOOST_CHECK(  &(*ori1) == &i ) ;
-
+	
  optional<int&> ori2(i) ;
  BOOST_CHECK(  &(*ori2) == &i ) ;
-
+	
  int const ci = 0 ;
  optional<int const&> orci1 = ci ;
  BOOST_CHECK(  &(*orci1) == &ci ) ;
-
+	
  optional<int const&> orci2(ci) ;
  BOOST_CHECK(  &(*orci2) == &ci ) ;
 }
@ -360,7 +360,7 @@ int test_main( int, char* [] )
  {
    test_with_class_type();
    test_with_builtin_types();
-    test_binding();
+		test_binding();
  }
  catch ( ... )
  {