Branch at revision 46530

[SVN r46531]
Fixed syntax of optional_swap_should_use_default_constructor and swap template specializations that I added 2 days ago (changeset [45265]). Was accepted by MSVC, but rejected by other compilers.
2025-06-27 13:01:33 +02:00 · 2008-06-19 18:57:10 +00:00 · 2008-05-12 13:29:52 +00:00 · 2008-05-10 14:53:51 +00:00 · 2008-05-10 14:42:49 +00:00 · 2008-04-27 21:09:50 +00:00
54 changed files with 901 additions and 1966 deletions
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@ -21,8 +21,10 @@ boostbook standalone
    :
        optional
    :
-        <xsl:param>toc.max.depth=1
+        <xsl:param>boost.root=../../../..
-        <xsl:param>toc.section.depth=1
+        <xsl:param>boost.libraries=../../../libraries.htm
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@ -12,17 +12,17 @@
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+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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--- a/doc/html/boost_optional/acknowledgments.html
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@ -10,24 +10,24 @@
    and Portability">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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+<table cellpadding="2" width="100%"><tr>
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@ -66,7 +66,7 @@
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@ -112,11 +112,15 @@
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 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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@ -11,17 +11,17 @@
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@ -36,11 +36,15 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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 <link rel="next" href="examples.html" title="Examples">
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@ -29,36 +29,42 @@
 <p>
      Because <code class="computeroutput"><span class="identifier">T</span></code> might be of reference
      type, in the sequel, those entries whose semantic depends on <code class="computeroutput"><span class="identifier">T</span></code> being of reference type or not will be
-      distinguished using the following convention: * If the entry reads: <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span></code><span class="emphasis"><em>(not a ref)</em></span><code class="computeroutput"><span class="special">&gt;</span></code>, the description corresponds only to the
+      distinguished using the following convention:
      case where <code class="computeroutput"><span class="identifier">T</span></code> is not of reference
      type. * If the entry reads: <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>,
      the description corresponds only to the case where <code class="computeroutput"><span class="identifier">T</span></code>
      is of reference type. * If the entry reads: <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 description is the same for both cases.
    </p>
 <div class="itemizedlist"><ul type="disc">
 <li>
        If the entry reads: <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span></code><span class="emphasis"><em>(not
        a ref)</em></span><code class="computeroutput"><span class="special">&gt;</span></code>, the description
        corresponds only to the case where <code class="computeroutput"><span class="identifier">T</span></code>
        is not of reference type.
      </li>
 <li>
        If the entry reads: <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>,
        the description corresponds only to the case where <code class="computeroutput"><span class="identifier">T</span></code>
        is of reference type.
      </li>
 <li>
        If the entry reads: <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 description is the same for both cases.
      </li>
 </ul></div>
 <div class="note"><table border="0" summary="Note">
 <tr>
-<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../doc/html/images/note.png"></td>
 <th align="left">Note</th>
 </tr>
-<tr><td align="left" valign="top">
+<tr><td align="left" valign="top"><p>
-<p>
+        The following section contains various <code class="computeroutput"><span class="identifier">assert</span><span class="special">()</span></code> which are used only to show the postconditions
-        </p>
+        as sample code. It is not implied that the type <code class="computeroutput"><span class="identifier">T</span></code>
-<p>
+        must support each particular expression but that if the expression is supported,
-          The following section contains various <code class="computeroutput"><span class="identifier">assert</span><span class="special">()</span></code> which are used only to show the postconditions
+        the implied condition holds.
-          as sample code. It is not implied that the type <code class="computeroutput"><span class="identifier">T</span></code>
+      </p></td></tr>
          must support each particular expression but that if the expression is supported,
          the implied condition holds.
        </p>
 <p>
      </p>
 </td></tr>
 </table></div>
 <p>
      <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
    </p>
 <a name="boost_optional.detailed_semantics.optional_class_member_functions"></a><h4>
-<a name="id2620116"></a>
+<a name="id2620257"></a>
      <a href="detailed_semantics.html#boost_optional.detailed_semantics.optional_class_member_functions">optional
      class member functions</a>
    </h4>
@ -1334,7 +1340,7 @@
      <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
    </p>
 <a name="boost_optional.detailed_semantics.free_functions"></a><h4>
-<a name="id2633284"></a>
+<a name="id2633426"></a>
      <a href="detailed_semantics.html#boost_optional.detailed_semantics.free_functions">Free functions</a>
    </h4>
 <p>
@ -1693,11 +1699,15 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
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@ -292,7 +292,7 @@
        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>
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+<a name="id2615375"></a>
        <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>
@ -357,7 +357,7 @@
        incarnated by pointers.
      </p>
 <a name="boost_optional.development.the_interface.optional_lt_t_gt__as_a_model_of_optionalpointee"></a><h5>
-<a name="id2615580"></a>
+<a name="id2615714"></a>
        <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>
@ -369,19 +369,12 @@
      </p>
 <div class="warning"><table border="0" summary="Warning">
 <tr>
-<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../images/warning.png"></td>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../../../../../doc/html/images/warning.png"></td>
 <th align="left">Warning</th>
 </tr>
-<tr><td align="left" valign="top">
+<tr><td align="left" valign="top"><p>
-<p>
+          However, it is particularly important to note that <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;&gt;</span></code> objects are not pointers. <span class="underline"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;&gt;</span></code> is not, and does not model, a pointer</span>.
-          </p>
+        </p></td></tr>
 <p>
            However, it is particularly important to note that <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;&gt;</span></code> objects are not pointers. <span class="underline"><code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;&gt;</span></code> is not, and does not model, a
            pointer</span>.
          </p>
 <p>
        </p>
 </td></tr>
 </table></div>
 <p>
        For instance, <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;&gt;</span></code>
@ -405,11 +398,15 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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@ -12,17 +12,17 @@
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@ -116,7 +116,7 @@
 <span class="special">}</span>
 </pre>
 <a name="boost_optional.exception_safety_guarantees.swap"></a><h4>
-<a name="id2644335"></a>
+<a name="id2644478"></a>
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@ -130,11 +130,15 @@
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+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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--- a/doc/html/boost_optional/in_place_factories.html
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@ -75,7 +75,7 @@
 <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="id2639932"></a>
+<a name="id2640074"></a>
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 <p>
@ -141,11 +141,15 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
+<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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@ -8,16 +8,16 @@
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 <div class="chapter" lang="en">
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@ -27,7 +27,7 @@
 </h3></div></div>
 <div><p class="copyright">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</p></div>
 <div><div class="legalnotice">
-<a name="id2604804"></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>
@ -38,9 +38,24 @@
 <dl>
 <dt><span class="section"><a href="index.html#optional.motivation">Motivation</a></span></dt>
 <dt><span class="section"><a href="boost_optional/development.html">Development</a></span></dt>
 <dd><dl>
 <dt><span class="section"><a href="boost_optional/development.html#boost_optional.development.the_models">The models</a></span></dt>
 <dt><span class="section"><a href="boost_optional/development.html#boost_optional.development.the_semantics">The semantics</a></span></dt>
 <dt><span class="section"><a href="boost_optional/development.html#boost_optional.development.the_interface">The Interface</a></span></dt>
 </dl></dd>
 <dt><span class="section"><a href="boost_optional/synopsis.html">Synopsis</a></span></dt>
 <dt><span class="section"><a href="boost_optional/detailed_semantics.html">Detailed Semantics</a></span></dt>
 <dt><span class="section"><a href="boost_optional/examples.html">Examples</a></span></dt>
 <dd><dl>
 <dt><span class="section"><a href="boost_optional/examples.html#boost_optional.examples.optional_return_values">Optional
      return values</a></span></dt>
 <dt><span class="section"><a href="boost_optional/examples.html#boost_optional.examples.optional_local_variables">Optional
      local variables</a></span></dt>
 <dt><span class="section"><a href="boost_optional/examples.html#boost_optional.examples.optional_data_members">Optional
      data members</a></span></dt>
 <dt><span class="section"><a href="boost_optional/examples.html#boost_optional.examples.bypassing_expensive_unnecessary_default_construction">Bypassing
      expensive unnecessary default construction</a></span></dt>
 </dl></dd>
 <dt><span class="section"><a href="boost_optional/optional_references.html">Optional references</a></span></dt>
 <dt><span class="section"><a href="boost_optional/rebinding_semantics_for_assignment_of_optional_references.html">Rebinding
    semantics for assignment of optional references</a></span></dt>
@ -159,10 +174,10 @@
  </p>
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"><small><p>Last revised: May 29, 2007 at 06:31:03 GMT</p></small></td>
+<td align="left"><p><small>Last revised: February 12, 2008 at 22:47:14 GMT</small></p></td>
-<td align="right"><small></small></td>
+<td align="right"><div class="copyright-footer"></div></td>
 </tr></table>
 <hr>
-<div class="spirit-nav"><a accesskey="n" href="boost_optional/development.html"><img src="images/next.png" alt="Next"></a></div>
+<div class="spirit-nav"><a accesskey="n" href="boost_optional/development.html"><img src="../../../../doc/html/images/next.png" alt="Next"></a></div>
 </body>
 </html>
--- a/doc/optional.html
+++ b/doc/optional.html
--- a/doc/optional.qbk
+++ b/doc/optional.qbk
@ -22,7 +22,7 @@ Distributed under the Boost Software License, Version 1.0.
 [/ Cited Boost resources ]
 [def __BOOST_VARIANT__ [@../../../variant/index.html Boost.Variant]]
-[def __BOOST_TRIBOOL__ [@../../../tribool/index.html boost::tribool]]
+[def __BOOST_TRIBOOL__ [@../../../../doc/html/tribool.html boost::tribool]]
 [def __OPTIONAL_POINTEE__ [@../../../utility/OptionalPointee.html OptionalPointee]]
 [def __COPY_CONSTRUCTIBLE__ [@../../../utility/CopyConstructible.html Copy Constructible]]
@ -40,11 +40,6 @@ Distributed under the Boost Software License, Version 1.0.
 [/ Icons ]
 [def __NOTE__ [$images/note.png]]
 [def __ALERT__ [$images/caution.png]]
 [def __DETAIL__ [$images/note.png]]
 [def __TIP__ [$images/tip.png]]
 [def __QUESTION_MARK__ [$images/question.png]]
 [def __SPACE__ [$images/space.png]]
 [def __GO_TO__ [$images/callouts/R.png]]
--- a/doc/reference.qbk
+++ b/doc/reference.qbk
@ -126,6 +126,7 @@
 Because `T` might be of reference type, in the sequel, those entries whose
 semantic depends on `T` being of reference type or not will be distinguished
 using the following convention:
 * If the entry reads: `optional<T`['(not a ref)]`>`, the description
 corresponds only to the case where `T` is not of reference type.
 * If the entry reads: `optional<T&>`, the description corresponds only to
--- a/include/boost/none.hpp
+++ b/include/boost/none.hpp
@ -4,7 +4,7 @@
 // (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 //
-// See http://www.boost.org/lib/optional/ for documentation.
+// See http://www.boost.org/libs/optional for documentation.
 //
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
--- a/include/boost/none_t.hpp
+++ b/include/boost/none_t.hpp
@ -4,7 +4,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 //
-// See http://www.boost.org/lib/optional for documentation.
+// See http://www.boost.org/libs/optional for documentation.
 //
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
--- a/include/boost/optional.hpp
+++ b/include/boost/optional.hpp
@ -4,7 +4,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 //
-// See http://www.boost.org/lib/optional for documentation.
+// See http://www.boost.org/libs/optional for documentation.
 //
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
--- a/include/boost/optional/optional.hpp
+++ b/include/boost/optional/optional.hpp
@ -1,4 +1,4 @@
-// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+// Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
 //
 // Use, modification, and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@ -9,6 +9,9 @@
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
 //
 // Revisions:
 // 27 Apr 2008 (improved swap) Fernando Cacciola, Niels Dekker, Thorsten Ottosen
 // 
 #ifndef BOOST_OPTIONAL_OPTIONAL_FLC_19NOV2002_HPP
 #define BOOST_OPTIONAL_OPTIONAL_FLC_19NOV2002_HPP
@ -19,6 +22,7 @@
 #include "boost/assert.hpp"
 #include "boost/type.hpp"
 #include "boost/type_traits/alignment_of.hpp"
 #include "boost/type_traits/has_nothrow_constructor.hpp"
 #include "boost/type_traits/type_with_alignment.hpp"
 #include "boost/type_traits/remove_reference.hpp"
 #include "boost/type_traits/is_reference.hpp"
@ -26,8 +30,9 @@
 #include "boost/mpl/bool.hpp"
 #include "boost/mpl/not.hpp"
 #include "boost/detail/reference_content.hpp"
-#include "boost/none_t.hpp"
+#include "boost/none.hpp"
 #include "boost/utility/compare_pointees.hpp"
 #include "boost/utility/in_place_factory.hpp"
 #include "boost/optional/optional_fwd.hpp"
@ -76,6 +81,19 @@
 #define BOOST_OPTIONAL_WEAK_OVERLOAD_RESOLUTION
 #endif
 // Daniel Wallin discovered that bind/apply.hpp badly interacts with the apply<>
 // member template of a factory as used in the optional<> implementation.
 // He proposed this simple fix which is to move the call to apply<> outside
 // namespace boost.
 namespace boost_optional_detail
 {
  template <class T, class Factory>
  void construct(Factory const& factory, void* address)
  {
    factory.BOOST_NESTED_TEMPLATE apply<T>(address);
  }
 }
 namespace boost {
@ -173,7 +191,7 @@ class optional_base : public optional_tag
    // Creates an optional<T> uninitialized.
    // No-throw
-    optional_base ( none_t const& )
+    optional_base ( none_t )
      :
      m_initialized(false) {}
@ -266,7 +284,7 @@ class optional_base : public optional_tag
    // Assigns from "none", destroying the current value, if any, leaving this UNINITIALIZED
    // No-throw (assuming T::~T() doesn't)
-    void assign ( none_t const& ) { destroy(); }
+    void assign ( none_t ) { destroy(); }
 #ifndef BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT
    template<class Expr>
@ -309,7 +327,7 @@ class optional_base : public optional_tag
    void construct ( Expr const& factory, in_place_factory_base const* )
     {
       BOOST_STATIC_ASSERT ( ::boost::mpl::not_<is_reference_predicate>::value ) ;
-       factory.BOOST_NESTED_TEMPLATE apply<value_type>(m_storage.address()) ;
+       boost_optional_detail::construct<value_type>(factory, m_storage.address());
       m_initialized = true ;
     }
@ -428,6 +446,8 @@ class optional_base : public optional_tag
    // the following olverloads are used to filter out the case and guarantee an error in case of T being a reference.
    pointer_const_type cast_ptr( internal_type const* p, is_not_reference_tag ) const { return p ; }
    pointer_type       cast_ptr( internal_type *      p, is_not_reference_tag )       { return p ; }
    pointer_const_type cast_ptr( internal_type const* p, is_reference_tag     ) const { return &p->get() ; }
    pointer_type       cast_ptr( internal_type *      p, is_reference_tag     )       { return &p->get() ; }
    bool m_initialized ;
    storage_type m_storage ;
@ -459,7 +479,7 @@ class optional : public optional_detail::optional_base<T>
    // Creates an optional<T> uninitialized.
    // No-throw
-    optional( none_t const& none_ ) : base(none_) {}
+    optional( none_t none_ ) : base(none_) {}
    // Creates an optional<T> initialized with 'val'.
    // Can throw if T::T(T const&) does
@ -501,7 +521,7 @@ class optional : public optional_detail::optional_base<T>
    // Creates a deep copy of another optional<T>
    // Can throw if T::T(T const&) does
-    optional ( optional const& rhs ) : base(rhs) {}
+    optional ( optional const& rhs ) : base( static_cast<base const&>(rhs) ) {}
   // No-throw (assuming T::~T() doesn't)
    ~optional() {}
@ -535,7 +555,7 @@ class optional : public optional_detail::optional_base<T>
    //  (NOTE: On BCB, this operator is not actually called and left is left UNMODIFIED in case of a throw)
    optional& operator= ( optional const& rhs )
      {
-        this->assign( rhs ) ;
+        this->assign( static_cast<base const&>(rhs) ) ;
        return *this ;
      }
@ -550,12 +570,20 @@ class optional : public optional_detail::optional_base<T>
    // Assigns from a "none"
    // Which destroys the current value, if any, leaving this UNINITIALIZED
    // No-throw (assuming T::~T() doesn't)
-    optional& operator= ( none_t const& none_ )
+    optional& operator= ( none_t none_ )
      {
        this->assign( none_ ) ;
        return *this ;
      }
    void swap( optional & arg )
      {
        // allow for Koenig lookup
        using boost::swap ;
        swap(*this, arg);
      }
    // Returns a reference to the value if this is initialized, otherwise,
    // the behaviour is UNDEFINED
    // No-throw
@ -678,6 +706,11 @@ get_pointer ( optional<T>& opt )
 // optional's relational operators ( ==, !=, <, >, <=, >= ) have deep-semantics (compare values).
 // WARNING: This is UNLIKE pointers. Use equal_pointees()/less_pointess() in generic code instead.
 //
 // optional<T> vs optional<T> cases
 //
 template<class T>
 inline
 bool operator == ( optional<T> const& x, optional<T> const& y )
@ -708,64 +741,141 @@ inline
 bool operator >= ( optional<T> const& x, optional<T> const& y )
 { return !( x < y ) ; }
 //
 // optional<T> vs T cases
 //
 template<class T>
 inline
-bool operator == ( optional<T> const& x, none_t const& )
+bool operator == ( optional<T> const& x, T const& y )
 { return equal_pointees(x, optional<T>(y)); }
 template<class T>
 inline
 bool operator < ( optional<T> const& x, T const& y )
 { return less_pointees(x, optional<T>(y)); }
 template<class T>
 inline
 bool operator != ( optional<T> const& x, T const& y )
 { return !( x == y ) ; }
 template<class T>
 inline
 bool operator > ( optional<T> const& x, T const& y )
 { return y < x ; }
 template<class T>
 inline
 bool operator <= ( optional<T> const& x, T const& y )
 { return !( y < x ) ; }
 template<class T>
 inline
 bool operator >= ( optional<T> const& x, T const& y )
 { return !( x < y ) ; }
 //
 // T vs optional<T> cases
 //
 template<class T>
 inline
 bool operator == ( T const& x, optional<T> const& y )
 { return equal_pointees( optional<T>(x), y ); }
 template<class T>
 inline
 bool operator < ( T const& x, optional<T> const& y )
 { return less_pointees( optional<T>(x), y ); }
 template<class T>
 inline
 bool operator != ( T const& x, optional<T> const& y )
 { return !( x == y ) ; }
 template<class T>
 inline
 bool operator > ( T const& x, optional<T> const& y )
 { return y < x ; }
 template<class T>
 inline
 bool operator <= ( T const& x, optional<T> const& y )
 { return !( y < x ) ; }
 template<class T>
 inline
 bool operator >= ( T const& x, optional<T> const& y )
 { return !( x < y ) ; }
 //
 // optional<T> vs none cases
 //
 template<class T>
 inline
 bool operator == ( optional<T> const& x, none_t )
 { return equal_pointees(x, optional<T>() ); }
 template<class T>
 inline
-bool operator < ( optional<T> const& x, none_t const& )
+bool operator < ( optional<T> const& x, none_t )
 { return less_pointees(x,optional<T>() ); }
 template<class T>
 inline
-bool operator != ( optional<T> const& x, none_t const& y )
+bool operator != ( optional<T> const& x, none_t y )
 { return !( x == y ) ; }
 template<class T>
 inline
-bool operator > ( optional<T> const& x, none_t const& y )
+bool operator > ( optional<T> const& x, none_t y )
 { return y < x ; }
 template<class T>
 inline
-bool operator <= ( optional<T> const& x, none_t const& y )
+bool operator <= ( optional<T> const& x, none_t y )
 { return !( y < x ) ; }
 template<class T>
 inline
-bool operator >= ( optional<T> const& x, none_t const& y )
+bool operator >= ( optional<T> const& x, none_t y )
 { return !( x < y ) ; }
 //
 // none vs optional<T> cases
 //
 template<class T>
 inline
-bool operator == ( none_t const& x, optional<T> const& y )
+bool operator == ( none_t x, optional<T> const& y )
 { return equal_pointees(optional<T>() ,y); }
 template<class T>
 inline
-bool operator < ( none_t const& x, optional<T> const& y )
+bool operator < ( none_t x, optional<T> const& y )
 { return less_pointees(optional<T>() ,y); }
 template<class T>
 inline
-bool operator != ( none_t const& x, optional<T> const& y )
+bool operator != ( none_t x, optional<T> const& y )
 { return !( x == y ) ; }
 template<class T>
 inline
-bool operator > ( none_t const& x, optional<T> const& y )
+bool operator > ( none_t x, optional<T> const& y )
 { return y < x ; }
 template<class T>
 inline
-bool operator <= ( none_t const& x, optional<T> const& y )
+bool operator <= ( none_t x, optional<T> const& y )
 { return !( y < x ) ; }
 template<class T>
 inline
-bool operator >= ( none_t const& x, optional<T> const& y )
+bool operator >= ( none_t x, optional<T> const& y )
 { return !( x < y ) ; }
 //
@ -781,44 +891,77 @@ namespace optional_detail {
 #define BOOST_OPTIONAL_STD_SWAP_INTRODUCED_AT_NS_SCOPE
 #endif
-// optional's swap:
+  template<bool use_default_constructor> struct swap_selector;
-// If both are initialized, calls swap(T&, T&). If this swap throws, both will remain initialized but their values are now unspecified.
+
-// If only one is initialized, calls U.reset(*I), THEN I.reset().
+  template<>
-// If U.reset(*I) throws, both are left UNCHANGED (U is kept uinitialized and I is never reset)
+  struct swap_selector<true>
 // If both are uninitialized, do nothing (no-throw)
 template<class T>
 inline
 void optional_swap ( optional<T>& x, optional<T>& y )
 {
  if ( !x && !!y )
  {
-    x.reset(*y);
+    template<class T>
-    y.reset();
+    static void optional_swap ( optional<T>& x, optional<T>& y )
-  }
+    {
-  else if ( !!x && !y )
+     bool hasX = x;
-  {
+     bool hasY = y;
-    y.reset(*x);
+
-    x.reset();
+     if ( !hasX && !hasY )
-  }
+       return;
-  else if ( !!x && !!y )
+
-  {
+     if( !hasX )
-// GCC > 3.2 and all other compilers have the using declaration at function scope (FLC)
+         x = boost::in_place();
     else if ( !hasY )
         y = boost::in_place();
   // GCC > 3.2 and all other compilers have the using declaration at function scope (FLC)
 #ifndef BOOST_OPTIONAL_STD_SWAP_INTRODUCED_AT_NS_SCOPE
-    // allow for Koenig lookup
+     // allow for Koenig lookup
-    using std::swap ;
+     using std::swap ;
 #endif
-    swap(*x,*y);
+     swap(*x,*y);
-  }
+
-}
+     if( !hasX )
         y = boost::none ;
     else if( !hasY )
         x = boost::none ;
    }
  };
  template<>
  struct swap_selector<false>
  {
    template<class T>
    static void optional_swap ( optional<T>& x, optional<T>& y )
    {
      if ( !x && !!y )
      {
        x = *y;
        y = boost::none ;
      }
      else if ( !!x && !y )
      {
        y = *x ;
        x = boost::none ;
      }
      else if ( !!x && !!y )
      {
    // GCC > 3.2 and all other compilers have the using declaration at function scope (FLC)
    #ifndef BOOST_OPTIONAL_STD_SWAP_INTRODUCED_AT_NS_SCOPE
        // allow for Koenig lookup
        using std::swap ;
    #endif
        swap(*x,*y);
      }
    }
  };
 } // namespace optional_detail
 template<class T>
 struct optional_swap_should_use_default_constructor : has_nothrow_default_constructor<T> {} ;
 template<class T> inline void swap ( optional<T>& x, optional<T>& y )
 {
-  optional_detail::optional_swap(x,y);
+  optional_detail::swap_selector<optional_swap_should_use_default_constructor<T>::value>::optional_swap(x, y);
 }
 } // namespace boost
 #endif
--- a/include/boost/optional/optional_fwd.hpp
+++ b/include/boost/optional/optional_fwd.hpp
@ -1,4 +1,4 @@
-// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+// Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
 //
 // Use, modification, and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@ -9,6 +9,9 @@
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
 //
 // Revisions:
 // 10 May 2008 (added swap related forward declaration) Niels Dekker
 // 
 #ifndef BOOST_OPTIONAL_OPTIONAL_FWD_FLC_19NOV2002_HPP
 #define BOOST_OPTIONAL_OPTIONAL_FWD_FLC_19NOV2002_HPP
@ -16,6 +19,10 @@ namespace boost {
 template<class T> class optional ;
 template<class T> void swap ( optional<T>& , optional<T>& ) ;
 template<class T> struct optional_swap_should_use_default_constructor ;
 } // namespace boost
 #endif
--- a/index.html
+++ b/index.html
@ -1,13 +1,13 @@
 <html>
 <head>
-<meta http-equiv="refresh" content="0; URL=doc/optional.html">
+<meta http-equiv="refresh" content="0; URL=doc/html/index.html">
 </head>
 <body>
 Automatic redirection failed, please go to
-<a href="doc/optional.html">doc/optional.html</a>.&nbsp;<hr>
+<a href="doc/html/index.html">doc/html/index.html</a>.&nbsp;<hr>
-<p><EFBFBD> Copyright Beman Dawes, 2001</p>
+<p><EFBFBD> Copyright Beman Dawes, 2001</p>
 <p>Distributed under the Boost Software License, Version 1.0. (See accompanying 
 file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy 
 at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
 </body>
-</html>
+</html>
--- a/test/.cvsignore
+++ b/test/.cvsignore
@ -1 +0,0 @@
 bin
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@ -22,11 +22,9 @@ import testing ;
    [ run optional_test_inplace.cpp ]
    [ run optional_test_io.cpp ]
    [ compile-fail optional_test_fail1.cpp ]
    [ compile-fail optional_test_fail2.cpp ]
    [ compile-fail optional_test_fail3a.cpp ]
    [ compile-fail optional_test_fail3b.cpp ]
    [ compile-fail optional_test_ref_fail1.cpp ]
    [ compile-fail optional_test_ref_fail2.cpp ]
    [ compile-fail optional_test_ref_fail3.cpp ]
    [ compile-fail optional_test_ref_fail4.cpp ]
    [ compile-fail optional_test_inplace_fail.cpp ]
--- a/test/optional_test.cpp
+++ b/test/optional_test.cpp
@ -1,4 +1,4 @@
-// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+// Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
 //
 // Use, modification, and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@ -9,6 +9,9 @@
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
 //
 // Revisions:
 // 12 May 2008 (added more swap tests)
 //
 #include<iostream>
 #include<stdexcept>
 #include<string>
@ -16,6 +19,8 @@
 #define BOOST_ENABLE_ASSERT_HANDLER
 #include "boost/bind/apply.hpp" // Included just to test proper interaction with boost::apply<> as reported by Daniel Wallin
 #include "boost/mpl/bool.hpp"
 #include "boost/mpl/bool_fwd.hpp"  // For mpl::true_ and mpl::false_
 #include "boost/optional/optional.hpp"
@ -704,16 +709,16 @@ void test_relops( T const* )
 {
  TRACE( std::endl << BOOST_CURRENT_FUNCTION   );
-  T v0(18);
+  T v0(0);
-  T v1(19);
+  T v1(1);
-  T v2(19);
+  T v2(1);
  optional<T> def0 ;
  optional<T> def1 ;
  optional<T> opt0(v0);
  optional<T> opt1(v1);
  optional<T> opt2(v2);
-
+  
  // Check identity
  BOOST_CHECK ( def0 == def0 ) ;
  BOOST_CHECK ( opt0 == opt0 ) ;
@ -751,6 +756,33 @@ void test_relops( T const* )
  BOOST_CHECK ( opt1 >  opt0 ) ;
  BOOST_CHECK ( opt1 <= opt2 ) ;
  BOOST_CHECK ( opt1 >= opt0 ) ;
  // Compare against a value directly
  BOOST_CHECK ( opt0 == v0 ) ;
  BOOST_CHECK ( opt0 != v1 ) ;
  BOOST_CHECK ( opt1 == v2 ) ;
  BOOST_CHECK ( opt0 <  v1 ) ;
  BOOST_CHECK ( opt1 >  v0 ) ;
  BOOST_CHECK ( opt1 <= v2 ) ;
  BOOST_CHECK ( opt1 >= v0 ) ;
  BOOST_CHECK ( v0 != opt1 ) ;
  BOOST_CHECK ( v1 == opt2 ) ;
  BOOST_CHECK ( v0 <  opt1 ) ;
  BOOST_CHECK ( v1 >  opt0 ) ;
  BOOST_CHECK ( v1 <= opt2 ) ;
  BOOST_CHECK ( v1 >= opt0 ) ;
  BOOST_CHECK (   def0 != v0  ) ;
  BOOST_CHECK ( !(def0 == v0) ) ;
  BOOST_CHECK (   def0 <  v0  ) ;
  BOOST_CHECK ( !(def0 >  v0) ) ;
  BOOST_CHECK (   def0 <= v0  ) ;
  BOOST_CHECK ( !(def0 >= v0) ) ;
  BOOST_CHECK (   v0 != def0  ) ;
  BOOST_CHECK ( !(v0 == def0) ) ;
  BOOST_CHECK ( !(v0 <  def0) ) ;
  BOOST_CHECK (   v0 >  def0  ) ;
  BOOST_CHECK ( !(v0 <= def0) ) ;
  BOOST_CHECK (   v0 >= opt0  ) ;
 }
 template<class T>
@ -767,6 +799,10 @@ void test_none( T const* )
  BOOST_CHECK ( def0    == none ) ;
  BOOST_CHECK ( non_def != none ) ;
  BOOST_CHECK ( !def1           ) ;
  BOOST_CHECK ( !(non_def <  none) ) ; 
  BOOST_CHECK (   non_def >  none  ) ;
  BOOST_CHECK ( !(non_def <= none) ) ;
  BOOST_CHECK (   non_def >= none  ) ;
  non_def = none ;
  BOOST_CHECK ( !non_def ) ;
@ -774,6 +810,24 @@ void test_none( T const* )
  test_default_implicit_construction(T(1),none);
 }
 template<class T>
 void test_arrow( T const* )
 {
  TRACE( std::endl << BOOST_CURRENT_FUNCTION   );
  T a(1234);
  optional<T>        oa(a) ;
  optional<T> const coa(a) ;
  BOOST_CHECK ( coa->V() == 1234 ) ;
  oa->V() = 4321 ;
  BOOST_CHECK (     a.V() = 1234 ) ;
  BOOST_CHECK ( (*oa).V() = 4321 ) ;
 }
 void test_with_builtin_types()
 {
  TRACE( std::endl << BOOST_CURRENT_FUNCTION   );
@ -804,6 +858,7 @@ void test_with_class_type()
  test_throwing_swap( ARG(X) );
  test_relops( ARG(X) ) ;
  test_none( ARG(X) ) ;
  test_arrow( ARG(X) ) ;
  BOOST_CHECK ( X::count == 0 ) ;
 }
@ -877,6 +932,337 @@ void test_conversions2()
  BOOST_CHECK(*get(&opt1) == static_cast<double>(f));
 }
 namespace optional_swap_test
 {
  class default_ctor_exception : public std::exception {} ;
  class copy_ctor_exception : public std::exception {} ;
  class assignment_exception : public std::exception {} ;
  //
  // Base class for swap test classes.  Its assignment should not be called, when swapping
  // optional<T> objects.  (The default std::swap would do so.)
  //
  class base_class_with_forbidden_assignment
  {
  public:
    base_class_with_forbidden_assignment & operator=(const base_class_with_forbidden_assignment &)
    {
      BOOST_CHECK(!"The assignment should not be used while swapping!");
      throw assignment_exception();
    }
    virtual ~base_class_with_forbidden_assignment() {}
  };
  //
  // Class without default constructor
  //
  class class_without_default_ctor : public base_class_with_forbidden_assignment
  {
  public:
    char data;
    explicit class_without_default_ctor(char arg) : data(arg) {}
  };
  //
  // Class whose default constructor should not be used by optional::swap!
  //
  class class_whose_default_ctor_should_not_be_used : public base_class_with_forbidden_assignment
  {
  public:
    char data;
    explicit class_whose_default_ctor_should_not_be_used(char arg) : data(arg) {}
    class_whose_default_ctor_should_not_be_used()
    {
      BOOST_CHECK(!"This default constructor should not be used while swapping!");
      throw default_ctor_exception();
    }
  };
  //
  // Class whose default constructor should be used by optional::swap.
  // Its copy constructor should be avoided!
  //
  class class_whose_default_ctor_should_be_used : public base_class_with_forbidden_assignment
  {
  public:
    char data;
    explicit class_whose_default_ctor_should_be_used(char arg) : data(arg) { }
    class_whose_default_ctor_should_be_used() : data('\0') { }
    class_whose_default_ctor_should_be_used(const class_whose_default_ctor_should_be_used &)
    {
      BOOST_CHECK(!"This copy constructor should not be used while swapping!");
      throw copy_ctor_exception();
    }
  };
  //
  // Class template whose default constructor should be used by optional::swap.
  // Its copy constructor should be avoided!
  //
  template <class T>
  class template_whose_default_ctor_should_be_used : public base_class_with_forbidden_assignment
  {
  public:
    T data;
    explicit template_whose_default_ctor_should_be_used(T arg) : data(arg) { }
    template_whose_default_ctor_should_be_used() : data('\0') { }
    template_whose_default_ctor_should_be_used(const template_whose_default_ctor_should_be_used &)
    {
      BOOST_CHECK(!"This copy constructor should not be used while swapping!");
      throw copy_ctor_exception();
    }
  };
  //
  // Class whose explicit constructor should be used by optional::swap.
  // Its other constructors should be avoided!
  //
  class class_whose_explicit_ctor_should_be_used : public base_class_with_forbidden_assignment
  {
  public:
    char data;
    explicit class_whose_explicit_ctor_should_be_used(char arg) : data(arg) { }
    class_whose_explicit_ctor_should_be_used()
    {
      BOOST_CHECK(!"This default constructor should not be used while swapping!");
      throw default_ctor_exception();
    }
    class_whose_explicit_ctor_should_be_used(const class_whose_explicit_ctor_should_be_used &)
    {
      BOOST_CHECK(!"This copy constructor should not be used while swapping!");
      throw copy_ctor_exception();
    }
  };
  void swap(class_whose_default_ctor_should_not_be_used & lhs, class_whose_default_ctor_should_not_be_used & rhs)
  {
    std::swap(lhs.data, rhs.data);
  }
  void swap(class_whose_default_ctor_should_be_used & lhs, class_whose_default_ctor_should_be_used & rhs)
  {
    std::swap(lhs.data, rhs.data);
  }
  void swap(class_without_default_ctor & lhs, class_without_default_ctor & rhs)
  {
    std::swap(lhs.data, rhs.data);
  }
  void swap(class_whose_explicit_ctor_should_be_used & lhs, class_whose_explicit_ctor_should_be_used & rhs)
  {
    std::swap(lhs.data, rhs.data);
  }
  template <class T>
  void swap(template_whose_default_ctor_should_be_used<T> & lhs, template_whose_default_ctor_should_be_used<T> & rhs)
  {
    std::swap(lhs.data, rhs.data);
  }
  //
  // optional<T>::swap should be customized when neither the copy constructor
  // nor the default constructor of T are supposed to be used when swapping, e.g.,
  // for the following type T = class_whose_explicit_ctor_should_be_used.
  //
  void swap(boost::optional<class_whose_explicit_ctor_should_be_used> & x, boost::optional<class_whose_explicit_ctor_should_be_used> & y)
  {
    bool hasX = x;
    bool hasY = y;
    if ( !hasX && !hasY )
     return;
    if( !hasX )
       x = boost::in_place('\0');
    else if ( !hasY )
       y = boost::in_place('\0');
    optional_swap_test::swap(*x,*y);
     if( !hasX )
         y = boost::none ;
     else if( !hasY )
         x = boost::none ;
  }
 } // End of namespace optional_swap_test.
 namespace boost {
 //
 // Compile time tweaking on whether or not swap should use the default constructor:
 //
 template <> struct optional_swap_should_use_default_constructor<
  optional_swap_test::class_whose_default_ctor_should_be_used> : mpl::true_ {} ;
 template <> struct optional_swap_should_use_default_constructor<
  optional_swap_test::class_whose_default_ctor_should_not_be_used> : mpl::false_ {} ;
 template <class T> struct optional_swap_should_use_default_constructor<
  optional_swap_test::template_whose_default_ctor_should_be_used<T> > : mpl::true_ {} ;
 //
 // Specialization of boost::swap:
 //
 template <> 
 void swap(optional<optional_swap_test::class_whose_explicit_ctor_should_be_used> & x, optional<optional_swap_test::class_whose_explicit_ctor_should_be_used> & y)
 {
  optional_swap_test::swap(x, y);
 }
 } // namespace boost
 namespace std {
 //
 // Specializations of std::swap:
 //
 template <> 
 void swap(optional_swap_test::class_whose_default_ctor_should_be_used & x, optional_swap_test::class_whose_default_ctor_should_be_used & y)
 {
  optional_swap_test::swap(x, y);
 }
 template <> 
 void swap(optional_swap_test::class_whose_default_ctor_should_not_be_used & x, optional_swap_test::class_whose_default_ctor_should_not_be_used & y)
 {
  optional_swap_test::swap(x, y);
 }
 template <> 
 void swap(optional_swap_test::class_without_default_ctor & x, optional_swap_test::class_without_default_ctor & y)
 {
  optional_swap_test::swap(x, y);
 }
 template <> 
 void swap(optional_swap_test::class_whose_explicit_ctor_should_be_used & x, optional_swap_test::class_whose_explicit_ctor_should_be_used & y)
 {
  optional_swap_test::swap(x, y);
 }
 } // namespace std
 //
 // Tests whether the swap function works properly for optional<T>.
 // Assumes that T has one data member, of type char.
 // Returns true iff the test is passed.
 //
 template <class T>
 bool test_swap_function( T const* )
 {
  const boost::unit_test::counter_t counter_before_test = boost::minimal_test::errors_counter();
  try
  {
    optional<T> obj1;
    optional<T> obj2('a');
    // Self-swap should not have any effect.
    swap(obj1, obj1);
    swap(obj2, obj2);
    BOOST_CHECK(!obj1);
    BOOST_CHECK(!!obj2 && obj2->data == 'a');
    // Call non-member swap.
    swap(obj1, obj2);
    // Test if obj1 and obj2 are really swapped.
    BOOST_CHECK(!!obj1 && obj1->data == 'a');
    BOOST_CHECK(!obj2);
    // Call non-member swap one more time.
    swap(obj1, obj2);
    // Test if obj1 and obj2 are swapped back.
    BOOST_CHECK(!obj1);
    BOOST_CHECK(!!obj2 && obj2->data == 'a');
  }
  catch(const std::exception &)
  {
    // The swap function should not throw, for our test cases.
    return false ;
  }
  return boost::minimal_test::errors_counter() == counter_before_test ;
 }
 //
 // Tests whether the optional<T>::swap member function works properly.
 // Assumes that T has one data member, of type char. 
 // Returns true iff the test is passed.
 //
 template <class T>
 bool test_swap_member_function( T const* )
 {
  const boost::unit_test::counter_t counter_before_test = boost::minimal_test::errors_counter();
  try
  {
    optional<T> obj1;
    optional<T> obj2('a');
    // Self-swap should not have any effect.
    obj1.swap(obj1);
    obj2.swap(obj2);
    BOOST_CHECK(!obj1);
    BOOST_CHECK(!!obj2 && obj2->data == 'a');
    // Call member swap.
    obj1.swap(obj2);
    // Test if obj1 and obj2 are really swapped.
    BOOST_CHECK(!!obj1 && obj1->data == 'a');
    BOOST_CHECK(!obj2);
    // Call member swap one more time.
    obj1.swap(obj2);
    // Test if obj1 and obj2 are swapped back.
    BOOST_CHECK(!obj1);
    BOOST_CHECK(!!obj2 && obj2->data == 'a');
  }
  catch(const std::exception &)
  {
    // The optional<T>::swap member function should not throw, for our test cases.
    return false ;
  }
  return boost::minimal_test::errors_counter() == counter_before_test ;
 }
 //
 // Tests compile time tweaking of swap, by means of
 // optional_swap_should_use_default_constructor.
 //
 void test_swap_tweaking()
 {
  BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_without_default_ctor) ) );
  BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_whose_default_ctor_should_be_used) ) );
  BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_whose_default_ctor_should_not_be_used) ) );
  BOOST_CHECK( test_swap_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
  BOOST_CHECK( test_swap_function( ARG(optional_swap_test::template_whose_default_ctor_should_be_used<char>) ) );
  BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_without_default_ctor) ) );
  BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_whose_default_ctor_should_be_used) ) );
  BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_whose_default_ctor_should_not_be_used) ) );
  BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::class_whose_explicit_ctor_should_be_used) ) );
  BOOST_CHECK( test_swap_member_function( ARG(optional_swap_test::template_whose_default_ctor_should_be_used<char>) ) );
 }
 int test_main( int, char* [] )
 {
  try
@ -886,6 +1272,7 @@ int test_main( int, char* [] )
    test_no_implicit_conversions();
    test_conversions1();
    test_conversions2();
    test_swap_tweaking();
  }
  catch ( ... )
  {
--- a/test/optional_test_ref.cpp
+++ b/test/optional_test_ref.cpp
@ -299,6 +299,23 @@ void test_none( T const* )
  BOOST_CHECK ( !non_def ) ;
 }
 template<class T>
 void test_arrow( T const* )
 {
  TRACE( std::endl << BOOST_CURRENT_FUNCTION   );
  T a(1234);
  optional<T&>        oa(a) ;
  optional<T&> const coa(a) ;
  BOOST_CHECK ( coa->V() == 1234 ) ;
  oa->V() = 4321 ;
  BOOST_CHECK ( a.V() = 4321 ) ;
 }
 void test_with_builtin_types()
 {
  TRACE( std::endl << BOOST_CURRENT_FUNCTION   );
@ -315,16 +332,35 @@ void test_with_class_type()
  test_basics( ARG(X) );
  test_relops( ARG(X) ) ;
  test_none  ( ARG(X) ) ;
  test_arrow ( ARG(X) ) ;
  BOOST_CHECK ( X::count == 0 ) ;
 }
 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 ) ;
 }
 int test_main( int, char* [] )
 {
  try
  {
    test_with_class_type();
    test_with_builtin_types();
 		test_binding();
  }
  catch ( ... )
  {
--- a/test/optional_test_ref_fail2.cpp
+++ b/test/optional_test_ref_fail2.cpp
@ -1,23 +0,0 @@
 // Copyright (C) 2003, Fernando Luis Cacciola Carballal.
 //
 // Use, modification, and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 // See http://www.boost.org/lib/optional for documentation.
 //
 // You are welcome to contact the author at:
 //  fernando_cacciola@hotmail.com
 //
 #include "boost/optional.hpp"
 //
 // THIS TEST SHOULD FAIL TO COMPILE
 //
 void optional_reference__test_no_ptr_access()
 {
  boost::optional<int&> opt ;
  opt.get_ptr();
 }
Author	SHA1	Message	Date
Beman Dawes	2c839e600b	Branch at revision 46530 [SVN r46531]	2008-06-19 18:57:10 +00:00
Niels Dekker	3ebabcb2d8	Fixed syntax of optional_swap_should_use_default_constructor and swap template specializations that I added 2 days ago (changeset [45265]). Was accepted by MSVC, but rejected by other compilers. [SVN r45295]	2008-05-12 13:29:52 +00:00
Niels Dekker	63f6e7f45e	Added more optional::swap tests, especially on self swap, on specializing boost::swap for optional<T>, and on swapping optional<T> when T is a template class. [SVN r45265]	2008-05-10 14:53:51 +00:00
Niels Dekker	43eac5bb12	Added forward declaration of boost::optional_swap_should_use_default_constructor. [SVN r45264]	2008-05-10 14:42:49 +00:00
Niels Dekker	74674531c8	Replaced "using std::swap" by "using boost::swap" within optional::swap member function, hoping to fix GCC test failures, as mentioned at http://article.gmane.org/gmane.comp.lib.boost.devel/174350 "Re: [optional] problems with swap()" [SVN r44826]	2008-04-27 21:09:50 +00:00
Niels Dekker	a4572497be	Added forward declaration of optional<T>'s boost::swap overload, as mentioned at http://article.gmane.org/gmane.comp.lib.boost.devel/174350 "Re: [optional] problems with swap()" [SVN r44825]	2008-04-27 21:07:10 +00:00
Daniel James	951b49f992	Merge in documentation fixes. Apart from the change to optional's documenation Jamfile, which I included by mistake. Fixes #1659, #1661, #1684, #1685, 1687, #1690, #1801 I wrote about this at: http://lists.boost.org/Archives/boost/2008/04/136405.php Merged revisions 44585-44806 via svnmerge from https://svn.boost.org/svn/boost/branches/doc ........ r44585 \| danieljames \| 2008-04-19 16:25:27 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix broken link to vacpp in bjam docs. Refs #1512 ........ r44586 \| danieljames \| 2008-04-19 16:27:36 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix broken link to bcpp in bjam docs. Refs #1513 ........ r44587 \| danieljames \| 2008-04-19 16:33:58 +0100 (Sat, 19 Apr 2008) \| 2 lines DateTime documentation - Fix a link to the serialization library. Refs #1659 ........ r44588 \| danieljames \| 2008-04-19 16:35:36 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix some links in interprocess & intrusive. Refs #1661 ........ r44589 \| danieljames \| 2008-04-19 16:37:39 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix some links in the python docs. Refs #1684. ........ r44590 \| danieljames \| 2008-04-19 16:38:29 +0100 (Sat, 19 Apr 2008) \| 2 lines Work around a quickbook bug which is affecting the python docs. Refs #1684. ........ r44591 \| danieljames \| 2008-04-19 16:39:34 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix a broken link in the numeric conversion docs. Refs #1685 ........ r44592 \| danieljames \| 2008-04-19 16:40:45 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix some links in the optional docs. Refs #1687 ........ r44593 \| danieljames \| 2008-04-19 16:42:09 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix link to the hash documentation from bimap. Refs #1690 ........ r44599 \| danieljames \| 2008-04-19 18:07:33 +0100 (Sat, 19 Apr 2008) \| 2 lines Fix a typo in the format library. Refs #1801 ........ r44600 \| danieljames \| 2008-04-19 19:20:59 +0100 (Sat, 19 Apr 2008) \| 1 line Initialise svnmerge. ........ r44641 \| danieljames \| 2008-04-20 18:59:47 +0100 (Sun, 20 Apr 2008) \| 2 lines Fix the lincense url in shared container iterator documentation. ........ r44642 \| danieljames \| 2008-04-20 19:00:00 +0100 (Sun, 20 Apr 2008) \| 2 lines Fix image link in the mpi documentation. ........ r44643 \| danieljames \| 2008-04-20 19:00:11 +0100 (Sun, 20 Apr 2008) \| 2 lines Fix a typo in the spirit docs. ........ r44644 \| danieljames \| 2008-04-20 19:00:23 +0100 (Sun, 20 Apr 2008) \| 2 lines Escape the slash so that quickbook doesn't think it the start of an italic section, and mess up the link. Refs #1844 ........ r44647 \| danieljames \| 2008-04-20 19:39:47 +0100 (Sun, 20 Apr 2008) \| 2 lines Fix another typo in spirit docs. ........ [SVN r44807]	2008-04-27 07:39:49 +00:00
Niels Dekker	1afed544db	Added unit tests, testing optional<T> swap improvements of revision [44766] [SVN r44767]	2008-04-25 16:52:34 +00:00
Niels Dekker	66c366d18a	Improved swap for optional<T>, co-written by Thorsten and Fernando: added support for tweaking whether swap should use T's default constructor. Added swap member function. Discussed at Boost developers' mailing list, "[optional] problems with swap()", http://lists.boost.org/Archives/boost/2008/04/135882.php [SVN r44766]	2008-04-25 16:50:32 +00:00
Matias Capeletto	472a68c920	redirect optional docs to new version [SVN r43248]	2008-02-14 17:44:21 +00:00
Matias Capeletto	3e33d4a200	optional docs fixes [SVN r43247]	2008-02-14 17:43:52 +00:00
Fernando Cacciola	95c864e119	Cast to base added to avoid a call to the convertir constructor/assignment (see Tickes 1419 and 1420) [SVN r41381]	2007-11-25 20:26:14 +00:00
Beman Dawes	9afdbe65e7	// Add or correct comment identifying Boost library this header is associated with. [SVN r41173]	2007-11-17 20:13:16 +00:00
Beman Dawes	f6518df0c4	Get rid of .cvsignore files [SVN r41107]	2007-11-15 15:20:27 +00:00
Fernando Cacciola	05a685b035	Fixed intention in the added binding test [SVN r40860]	2007-11-06 22:21:43 +00:00
Fernando Cacciola	3b5b5d82a0	Added test to ensure proper binding of optional references (in reference to Ticket 1301) [SVN r40707]	2007-11-02 23:41:37 +00:00
Fernando Cacciola	06ba35cd42	Fixed error reported by Edward Diener [SVN r40706]	2007-11-02 23:06:42 +00:00
Fernando Cacciola	3499d477dc	Merged changests from RC_1_34_0 - base rev 33417 [SVN r40705]	2007-11-02 22:56:23 +00:00
Fernando Cacciola	a690c8e7a2	Merged changests from RC_1_34_0 - base rev 33417 [SVN r40704]	2007-11-02 22:55:49 +00:00