Branch for development of boost.system related changes

[SVN r40931]
2025-06-28 21:41:09 +02:00 · 2007-11-08 14:20:16 +00:00
51 changed files with 2046 additions and 696 deletions
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@ -21,10 +21,8 @@ boostbook standalone
    :
        optional
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+        <xsl:param>toc.max.depth=1
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--- a/doc/html/boost_optional/a_note_about_optional_bool_.html
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@ -12,17 +12,17 @@
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+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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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@ -10,24 +10,24 @@
    and Portability">
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+<table cellpadding="2" width="100%">
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@ -66,7 +66,7 @@
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@ -112,15 +112,11 @@
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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"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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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--- a/doc/html/boost_optional/dependencies_and_portability.html
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@ -11,17 +11,17 @@
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@ -36,15 +36,11 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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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--- a/doc/html/boost_optional/detailed_semantics.html
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@ -10,17 +10,17 @@
 <link rel="next" href="examples.html" title="Examples">
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@ -29,42 +29,36 @@
 <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:
+      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
-    </p>
+      case where <code class="computeroutput"><span class="identifier">T</span></code> is not of reference
-<div class="itemizedlist"><ul type="disc">
+      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>,
 <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.
+      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>,
      </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>
+    </p>
 </ul></div>
 <div class="note"><table border="0" summary="Note">
 <tr>
-<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../doc/html/images/note.png"></td>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../images/note.png"></td>
 <th align="left">Note</th>
 </tr>
-<tr><td align="left" valign="top"><p>
+<tr><td align="left" valign="top">
 <p>
        </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
          as sample code. It is not implied that the type <code class="computeroutput"><span class="identifier">T</span></code>
          must support each particular expression but that if the expression is supported,
          the implied condition holds.
-      </p></td></tr>
+        </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="id2620257"></a>
+<a name="id2620116"></a>
      <a href="detailed_semantics.html#boost_optional.detailed_semantics.optional_class_member_functions">optional
      class member functions</a>
    </h4>
@ -1340,7 +1334,7 @@
      <span class="inlinemediaobject"><img src="../images/space.png" alt="space"></span>
    </p>
 <a name="boost_optional.detailed_semantics.free_functions"></a><h4>
-<a name="id2633426"></a>
+<a name="id2633284"></a>
      <a href="detailed_semantics.html#boost_optional.detailed_semantics.free_functions">Free functions</a>
    </h4>
 <p>
@ -1699,15 +1693,11 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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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 <link rel="next" href="synopsis.html" title="Synopsis">
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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>
-<a name="id2615375"></a>
+<a name="id2615242"></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>
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-<a name="id2615714"></a>
+<a name="id2615580"></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>
@ -369,12 +369,19 @@
      </p>
 <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>
+<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../images/warning.png"></td>
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-<tr><td align="left" valign="top"><p>
+<tr><td align="left" valign="top">
-          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>
 <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>
@ -398,15 +405,11 @@
 </div>
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-<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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 <span class="special">}</span>
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-<a name="id2644478"></a>
+<a name="id2644335"></a>
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+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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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    optional&lt;bool&gt;">
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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="id2640074"></a>
+<a name="id2639932"></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>
@ -141,15 +141,11 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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"><div class="copyright-footer">Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal<p>
+<td align="right"><small>Copyright <20> 2003 -2007 Fernando Luis Cacciola Carballal</small></td>
        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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@ -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="id2604939"></a><p>
+<a name="id2604804"></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>
@ -38,24 +38,9 @@
 <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>
@ -174,10 +159,10 @@
  </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: February 12, 2008 at 22:47:14 GMT</small></p></td>
+<td align="left"><small><p>Last revised: May 29, 2007 at 06:31:03 GMT</p></small></td>
-<td align="right"><div class="copyright-footer"></div></td>
+<td align="right"><small></small></td>
 </tr></table>
 <hr>
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+<div class="spirit-nav"><a accesskey="n" href="boost_optional/development.html"><img src="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__ [@../../../../doc/html/tribool.html boost::tribool]]
+[def __BOOST_TRIBOOL__ [@../../../tribool/index.html boost::tribool]]
 [def __OPTIONAL_POINTEE__ [@../../../utility/OptionalPointee.html OptionalPointee]]
 [def __COPY_CONSTRUCTIBLE__ [@../../../utility/CopyConstructible.html Copy Constructible]]
@ -40,6 +40,11 @@ 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
@ -126,7 +126,6 @@
 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/libs/optional for documentation.
+// See http://www.boost.org/lib/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/libs/optional for documentation.
+// See http://www.boost.org/lib/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/libs/optional for documentation.
+// See http://www.boost.org/lib/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, 2008 Fernando Luis Cacciola Carballal.
+// 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
@ -9,9 +9,6 @@
 // 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
@ -22,7 +19,6 @@
 #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"
@ -32,7 +28,6 @@
 #include "boost/detail/reference_content.hpp"
 #include "boost/none.hpp"
 #include "boost/utility/compare_pointees.hpp"
 #include "boost/utility/in_place_factory.hpp"
 #include "boost/optional/optional_fwd.hpp"
@ -521,7 +516,7 @@ 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( static_cast<base const&>(rhs) ) {}
+    optional ( optional const& rhs ) : base(rhs) {}
   // No-throw (assuming T::~T() doesn't)
    ~optional() {}
@ -555,7 +550,7 @@ 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( static_cast<base const&>(rhs) ) ;
+        this->assign( rhs ) ;
        return *this ;
      }
@ -576,14 +571,6 @@ class optional : public optional_detail::optional_base<T>
        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
@ -891,54 +878,24 @@ namespace optional_detail {
 #define BOOST_OPTIONAL_STD_SWAP_INTRODUCED_AT_NS_SCOPE
 #endif
-  template<bool use_default_constructor> struct swap_selector;
+// optional's swap:
-
+// If both are initialized, calls swap(T&, T&). If this swap throws, both will remain initialized but their values are now unspecified.
-  template<>
+// If only one is initialized, calls U.reset(*I), THEN I.reset().
-  struct swap_selector<true>
+// If U.reset(*I) throws, both are left UNCHANGED (U is kept uinitialized and I is never reset)
-  {
+// If both are uninitialized, do nothing (no-throw)
 template<class T>
-    static void optional_swap ( optional<T>& x, optional<T>& y )
+inline
-    {
+void optional_swap ( optional<T>& x, optional<T>& y )
     bool hasX = x;
     bool hasY = y;
     if ( !hasX && !hasY )
       return;
     if( !hasX )
         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
     using std::swap ;
 #endif
     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;
+    x.reset(*y);
-        y = boost::none ;
+    y.reset();
  }
  else if ( !!x && !y )
  {
-        y = *x ;
+    y.reset(*x);
-        x = boost::none ;
+    x.reset();
  }
  else if ( !!x && !!y )
  {
@ -950,18 +907,15 @@ namespace optional_detail {
    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::swap_selector<optional_swap_should_use_default_constructor<T>::value>::optional_swap(x, y);
+  optional_detail::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, 2008 Fernando Luis Cacciola Carballal.
+// 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
@ -9,9 +9,6 @@
 // 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
@ -19,10 +16,6 @@ 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
@ -1,11 +1,11 @@
 <html>
 <head>
-<meta http-equiv="refresh" content="0; URL=doc/html/index.html">
+<meta http-equiv="refresh" content="0; URL=doc/optional.html">
 </head>
 <body>
 Automatic redirection failed, please go to
-<a href="doc/html/index.html">doc/html/index.html</a>.&nbsp;<hr>
+<a href="doc/optional.html">doc/optional.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>
--- a/test/.cvsignore
+++ b/test/.cvsignore
@ -0,0 +1 @@
 bin
--- a/test/optional_test.cpp
+++ b/test/optional_test.cpp
@ -1,4 +1,4 @@
-// Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
+// 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
@ -9,9 +9,6 @@
 // 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>
@ -19,8 +16,6 @@
 #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"
@ -932,337 +927,6 @@ 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
@ -1272,7 +936,6 @@ int test_main( int, char* [] )
    test_no_implicit_conversions();
    test_conversions1();
    test_conversions2();
    test_swap_tweaking();
  }
  catch ( ... )
  {