1.36.0 beta 1

[SVN r47919]

call_traits.htm

@@ -740,26 +740,16 @@ specialisation).</p>
 
 <p>Revised 01 September 2000</p>
 
-<p><EFBFBD> Copyright boost.org 2000. Permission to copy, use, modify,
-sell and distribute this document is granted provided this
-copyright notice appears in all copies. This document is provided
-&quot;as is&quot; without express or implied warranty, and with
-no claim as to its suitability for any purpose.</p>
-
-<p>Based on contributions by Steve Cleary, Beman Dawes, Howard
-Hinnant and John Maddock.</p>
-
-<p>Maintained by <a href="mailto:john@johnmaddock.co.uk">John
-Maddock</a>, the latest version of this file can be found at <a
-href="http://www.boost.org/">www.boost.org</a>, and the boost
-discussion list at <a
-href="http://www.yahoogroups.com/list/boost">www.yahoogroups.com/list/boost</a>.</p>
-
-<p>.</p>
-
-<p>&nbsp;</p>
-
-<p>&nbsp;</p>
+   <p>
+      Copyright 2000 Steve Cleary, Beman Dawes, Howard
+      Hinnant and John Maddock. <br/>
+      Use, modification and distribution are subject to 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">
+         http://www.boost.org/LICENSE_1_0.txt
+      </a>).
+   </p>
 </body>
 </html>
 

enable_if.html

@@ -366,17 +366,18 @@ David Vandevoorde and Nicolai M. Josuttis.
 <EM>C++ Templates: The Complete Guide</EM>.
 Addison-Wesley, 2002.</DL>
 
-
-
-
-
-<hr></hr>
-
-<B>Contributed by:</B> <BR>
-Jaakko J&auml;rvi, Jeremiah Willcock and Andrew Lumsdaine<BR>
+<hr/>
+   <p>Copyright Jaakko J&auml;rvi, Jeremiah Willcock and Andrew Lumsdaine<BR>
 <EM>{jajarvi|jewillco|lums}@osl.iu.edu</EM><BR>
 Indiana University<BR>
-Open Systems Lab
+Open Systems Lab<br/>
+Use, modification and distribution are subject to 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">
+   http://www.boost.org/LICENSE_1_0.txt
+</a>).
+</p>
 <!--HTMLFOOT-->
 <!--ENDHTML-->
 <!--FOOTER-->

enable_if/test/constructors.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/dummy_arg_disambiguation.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/lazy.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/lazy_test.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/member_templates.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/namespace_disambiguation.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/no_disambiguation.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

enable_if/test/partial_specializations.cpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

include/boost/exception.hpp

@@ -0,0 +1,19 @@
+//Copyright (c) 2006-2008 Emil Dotchevski and Reverge Studios, Inc.
+
+//Distributed under 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)
+
+#ifndef UUID_1D94A7C6054E11DB9804B622A1EF5492
+#define UUID_1D94A7C6054E11DB9804B622A1EF5492
+
+#include <boost/exception/diagnostic_information.hpp>
+#include <boost/exception/enable_current_exception.hpp>
+#include <boost/exception/enable_error_info.hpp>
+#include <boost/exception/error_info.hpp>
+#include <boost/exception/exception.hpp>
+#include <boost/exception/info.hpp>
+#include <boost/exception/info_tuple.hpp>
+#include <boost/exception_ptr.hpp>
+#include <boost/throw_exception.hpp>
+
+#endif

include/boost/ref.hpp

@@ -15,7 +15,7 @@
 //
 //  ref.hpp - ref/cref, useful helper functions
 //
-//  Copyright (C) 1999, 2000 Jaakko J<EFBFBD>rvi (jaakko.jarvi@cs.utu.fi)
+//  Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
 //  Copyright (C) 2001, 2002 Peter Dimov
 //  Copyright (C) 2002 David Abrahams
 //

include/boost/utility/addressof.hpp

@@ -1,6 +1,7 @@
 // Copyright (C) 2002 Brad King (brad.king@kitware.com) 
 //                    Douglas Gregor (gregod@cs.rpi.edu)
-//                    Peter Dimov
+//
+// Copyright (C) 2002, 2008 Peter Dimov
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -14,27 +15,31 @@
 # include <boost/config.hpp>
 # include <boost/detail/workaround.hpp>
 
-namespace boost {
-
-// Do not make addressof() inline. Breaks MSVC 7. (Peter Dimov)
-
-// VC7 strips const from nested classes unless we add indirection here
-# if BOOST_WORKAROUND(BOOST_MSVC, == 1300)
-
-template<class T> struct _addp
+namespace boost
 {
-    typedef T * type;
+
+namespace detail
+{
+
+template<class T> struct addressof_impl
+{
+    static inline T * f( T & v, long )
+    {
+        return reinterpret_cast<T*>(
+            &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
+    }
+
+    static inline T * f( T * v, int )
+    {
+        return v;
+    }
 };
-    
-template <typename T> typename _addp<T>::type
 
-# else
-template <typename T> T*
-# endif
-addressof(T& v)
+} // namespace detail
+
+template<class T> T * addressof( T & v )
 {
-  return reinterpret_cast<T*>(
-       &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
+    return boost::detail::addressof_impl<T>::f( v, 0 );
 }
 
 // Borland doesn't like casting an array reference to a char reference
@@ -53,6 +58,6 @@ const T (*addressof(const T (&t)[N]))[N]
 }
 # endif
 
-}
+} // namespace boost
 
 #endif // BOOST_UTILITY_ADDRESSOF_HPP

include/boost/utility/enable_if.hpp

@@ -6,7 +6,7 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-//    Authors: Jaakko J<EFBFBD>rvi (jajarvi at osl.iu.edu)
+//    Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
 //             Jeremiah Willcock (jewillco at osl.iu.edu)
 //             Andrew Lumsdaine (lums at osl.iu.edu)
 

include/boost/utility/value_init.hpp

@@ -1,4 +1,4 @@
-// (C) Copyright 2002-2007, Fernando Luis Cacciola Carballal.
+// (C) Copyright 2002-2008, Fernando Luis Cacciola Carballal.
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -6,29 +6,20 @@
 //
 // 21 Ago 2002 (Created) Fernando Cacciola
 // 24 Dec 2007 (Refactored and worked around various compiler bugs) Fernando Cacciola, Niels Dekker
+// 23 May 2008 (Fixed operator= const issue, added initialized_value) Niels Dekker, Fernando Cacciola
 //
 #ifndef BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP
 #define BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP
 
 // Note: The implementation of boost::value_initialized had to deal with the
-// fact that various compilers haven't fully implemented value-initialization:
-// Microsoft Feedback ID 100744 - Value-initialization in new-expression
-// Reported by Pavel Kuznetsov (MetaCommunications Engineering), 2005-07-28
-// https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=100744
-// GCC Bug 30111 - Value-initialization of POD base class doesn't initialize members
-// Reported by Jonathan Wakely, 2006-12-07 
-// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30111
-// GCC Bug 33916 - Default constructor fails to initialize array members
-// Reported by Michael Elizabeth Chastain, 2007-10-26
-// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33916
-// Borland Report 51854 - Value-initialization: POD struct should be zero-initialized
-// Reported by Niels Dekker (LKEB, Leiden University Medical Center), 2007-11-09
-// http://qc.codegear.com/wc/qcmain.aspx?d=51854
-// The constructor of boost::value_initialized<T> works around these issues, by
-// clearing the bytes of T, before constructing the T object it contains. 
+// fact that various compilers haven't fully implemented value-initialization.
+// The constructor of boost::value_initialized<T> works around these compiler
+// issues, by clearing the bytes of T, before constructing the T object it
+// contains. More details on these issues are at libs/utility/value_init.htm
 
 #include <boost/aligned_storage.hpp>
 #include <boost/detail/workaround.hpp>
+#include <boost/static_assert.hpp>
 #include <boost/type_traits/cv_traits.hpp>
 #include <boost/type_traits/alignment_of.hpp>
 #include <cstring>
@@ -48,23 +39,32 @@ class value_initialized
       remove_const<T>::type data;
     };
 
-    mutable aligned_storage<sizeof(wrapper), alignment_of<wrapper>::value> x;
+    mutable
+#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592))
+      typename
+#endif 
+      aligned_storage<sizeof(wrapper), alignment_of<wrapper>::value>::type x;
+
+    wrapper * wrapper_address() const
+    {
+      return static_cast<wrapper *>( static_cast<void*>(&x));
+    }
 
   public :
 
     value_initialized()
     {
-      std::memset(x.address(), 0, sizeof(x));
+      std::memset(&x, 0, sizeof(x));
 #ifdef BOOST_MSVC
 #pragma warning(push)
 #if _MSC_VER >= 1310
 // When using MSVC 7.1 or higher, the following placement new expression may trigger warning C4345:
 // "behavior change: an object of POD type constructed with an initializer of the form ()
-// will be default-initialized".  There is no need to worry about this, though.
+// will be default-initialized".  It is safe to ignore this warning when using value_initialized.
 #pragma warning(disable: 4345)
 #endif
 #endif
-      new (x.address()) wrapper();
+      new (wrapper_address()) wrapper();
 #ifdef BOOST_MSVC
 #pragma warning(pop)
 #endif
@@ -72,25 +72,25 @@ class value_initialized
 
     value_initialized(value_initialized const & arg)
     {
-      new (x.address()) wrapper( *static_cast<wrapper const *>(arg.x.address()) );
+      new (wrapper_address()) wrapper( static_cast<wrapper const &>(*(arg.wrapper_address())));
     }
 
     value_initialized & operator=(value_initialized const & arg)
     {
-      T & this_data = this->data();
-      T const & arg_data = arg.data();
-      this_data = arg_data;
+      // Assignment is only allowed when T is non-const.
+      BOOST_STATIC_ASSERT( ! is_const<T>::value );
+      *wrapper_address() = static_cast<wrapper const &>(*(arg.wrapper_address()));
       return *this;
     }
 
     ~value_initialized()
     {
-      static_cast<wrapper *>(x.address())->wrapper::~wrapper();
+      wrapper_address()->wrapper::~wrapper();
     }
 
     T& data() const
     {
-      return static_cast<wrapper *>(x.address())->data;
+      return wrapper_address()->data;
     }
 
     operator T&() const { return this->data(); }
@@ -110,6 +110,20 @@ T& get ( value_initialized<T>& x )
   return x.data() ;
 }
 
+
+class initialized_value_t
+{
+  public :
+    
+    template <class T> operator T() const
+    {
+      return get( value_initialized<T>() );
+    }
+};
+
+initialized_value_t const initialized_value = {} ;
+
+
 } // namespace boost
 
 

index.html

@@ -21,14 +21,15 @@
 				<a href="compressed_pair.htm">compressed_pair</a><br>
 				<a href="current_function.html">current_function</a><br>
 				<a href="enable_if.html">enable_if</a><br>
-                <a href="iterator_adaptors.htm">iterator_adaptors</a><br>
+            <a href="iterator_adaptors.htm">iterator_adaptors</a><br>
+            <a href="generator_iterator.htm">generator iterator adaptors</a><br>
 				<a href="operators.htm">operators</a><br>
 				<a href="throw_exception.html">throw_exception</a><br>
 				<a href="utility.htm">utility</a><br>
                 <a href="value_init.htm">value_init</a></p>
 		</blockquote>
 		<hr>
-		<p><EFBFBD> Copyright Beman Dawes, 2001</p>
+		<p>&copy; 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

shared_container_iterator.html

@@ -315,7 +315,7 @@ Last modified: Mon Aug 11 11:27:03 EST 2003
 <p><EFBFBD> Copyright 2003 The Trustees of Indiana University.
  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)</p>
+ http://www.boost.org/LICENSE_1_0.txt)</p>
 
 </body>
 

value_init.htm

@@ -28,11 +28,12 @@
 </ul>
                    
 <dl class="page-index">
-  <dt><a href="#types">Types</a></dt>
+  <dt><a href="#types">Types and objects</a></dt>
 </dl>
                    
 <ul>
-          <li><a href="#val_init"><code>value_initialized&lt;T&gt;</code></a></li>
+          <li><a href="#val_init"><code>template class value_initialized&lt;T&gt;</code></a></li>
+          <li><a href="#initialized_value"><code>initialized_value</code></a></li>
                    
 </ul>
               <a href="#acknowledgements">Acknowledgements</a><br>
@@ -52,6 +53,9 @@ union and class   types.
 Moreover, <code>value_initialized</code> offers a workaround to various
 compiler issues regarding value-initialization.
 
+Furthermore, a <code>const</code> object, <code>initialized_value</code> is provided,
+to avoid repeating the type name when retrieving the value from a
+<code>value_initialized&lt;T&gt;</code> object.
 <br>
   </p>
         
@@ -117,6 +121,16 @@ constructed by the following declaration:
 <pre>
   value_initialized&lt;T&gt; var;
 </pre>
+</p>
+<p>
+The <code>const</code> object <a href="#initialized_value"><code>initialized_value</code></a>
+allows value-initializing a variable as follows:
+<pre>
+  T var = initialized_value ;
+</pre>
+This form of initialization is semantically equivalent to <code>T4 var4 = T4()</code>,
+but robust against the aforementioned compiler issues.
+
 </p>
 
 <h2><a name="details"></a>Details</h2>
@@ -235,7 +249,7 @@ offer a workaround to these issues: <code>value_initialized</code> will now clea
 its internal data, prior to constructing the object that it contains.
 </p>
                    
-<h2><a name="types"></a>Types</h2>
+<h2><a name="types"></a>Types and objects</h2>
                    
 <h2><a name="val_init"><code>template class value_initialized&lt;T&gt;</code></a></h2>
                    
@@ -298,6 +312,43 @@ the wrapped object is always performed with the <code>get()</code> idiom:</p>
                    
 <pre>value_initialized&lt;int&gt; x ;<br>get(x) = 1 ; // OK<br><br>value_initialized&lt;int const&gt; cx ;<br>get(x) = 1 ; // ERROR: Cannot modify a const object<br><br>value_initialized&lt;int&gt; const x_c ;<br>get(x_c) = 1 ; // ERROR: Cannot modify a const object<br><br>value_initialized&lt;int const&gt; const cx_c ;<br>get(cx_c) = 1 ; // ERROR: Cannot modify a const object<br></pre>
                     
+<h2><a name="initialized_value"><code>initialized_value</code></a></h2>
+
+<pre>
+namespace boost {
+class initialized_value_t
+{
+  public :
+    template &lt;class T&gt; operator T() const ;
+};
+
+initialized_value_t const initialized_value = {} ;
+
+} // namespace boost
+</pre>
+
+<code>initialized_value</code> provides a convenient way to get
+an initialized value: its conversion operator provides an appropriate
+<em>value-initialized</em> object for any CopyConstructible type.
+
+Suppose you need to have an initialized variable of type <code>T</code>.
+You could do it as follows:
+<pre>
+  T var = T();
+</pre>
+But as mentioned before, this form suffers from various compiler issues.
+The template <code>value_initialized</code> offers a workaround:
+<pre>
+  T var = get( value_initialized&lt;T&gt;() );
+</pre>
+Unfortunately both forms repeat the type name, which
+is rather short now (<code>T</code>), but could of course be 
+more like <code>Namespace::Template&lt;Arg&gt;::Type</code>.
+Instead, one could use <code>initialized_value</code> as follows:
+<pre>
+  T var = initialized_value ;
+</pre>
+                    
 <h3><a name="references">References</a></h3>
           [1] Bjarne Stroustrup, Gabriel Dos Reis, and J. Stephen Adamczyk wrote
           various papers, proposing to extend the support for brace-enclosed <em>initializer lists</em>
@@ -320,13 +371,15 @@ Special thanks to Bj&ouml;rn Karlsson who carefully edited and completed this do
 <p>value_initialized was reimplemented by Fernando Cacciola and Niels Dekker
 for Boost release version 1.35 (2008), offering a workaround to various compiler issues.
      </p>
+<p>initialized_value was written by Niels Dekker, and added to Boost release version 1.36 (2008).
+     </p>
 <p>Developed by <a href="mailto:fernando_cacciola@hotmail.com">Fernando Cacciola</a>,
      the latest version of this file can be found at <a
  href="http://www.boost.org">www.boost.org</a>.
      </p>
                     
 <hr>          
-<p>Revised 15 January 2008</p>
+<p>Revised 23 May 2008</p>
                    
 <p>&copy; Copyright Fernando Cacciola, 2002, 2008.</p>
                    
@@ -337,4 +390,4 @@ for Boost release version 1.35 (2008), offering a workaround to various compiler
  <br>
     
 </body>
-</html>
+</html>

value_init_test.cpp

@@ -6,8 +6,9 @@
 //
 // Test program for "boost/utility/value_init.hpp"
 //
-// 21 Agu 2002 (Created) Fernando Cacciola
+// 21 Ago 2002 (Created) Fernando Cacciola
 // 15 Jan 2008 (Added tests regarding compiler issues) Fernando Cacciola, Niels Dekker
+// 23 May 2008 (Added tests regarding initialized_value) Niels Dekker
 
 #include <cstring>  // For memcmp.
 #include <iostream>
@@ -52,7 +53,7 @@ struct NonPODBase
 struct NonPOD : NonPODBase
 {
   NonPOD () : id() {}
-  NonPOD ( std::string const& id_) : id(id_) {}
+  explicit NonPOD ( std::string const& id_) : id(id_) {}
 
   friend std::ostream& operator << ( std::ostream& os, NonPOD const& npod )
     { return os << '(' << npod.id << ')' ; }
@@ -180,6 +181,32 @@ struct CopyFunctionCallTester
 };
 
 
+template<class T>
+void check_initialized_value ( T const& y )
+{
+  T initializedValue = boost::initialized_value ;
+  BOOST_CHECK ( y == initializedValue ) ;
+}
+
+#ifdef  __BORLANDC__
+#if __BORLANDC__ == 0x582
+void check_initialized_value( NonPOD const& )
+{
+  // The initialized_value check is skipped for Borland 5.82
+  // and this type (NonPOD), because the following statement
+  // won't compile on this particular compiler version:
+  //   NonPOD initializedValue = boost::initialized_value() ;
+//
+  // This is caused by a compiler bug, that is fixed with a newer version
+  // of the Borland compiler.  The Release Notes for Delphi(R) 2007 for
+  // Win32(R) and C++Builder(R) 2007 (http://dn.codegear.com/article/36575)
+  // say about similar statements:
+  //   both of these statements now compile but under 5.82 got the error:
+  //   Error E2015: Ambiguity between 'V::V(const A &)' and 'V::V(const V &)'
+}
+#endif
+#endif
+
 //
 // This test function tests boost::value_initialized<T> for a specific type T.
 // The first argument (y) is assumed have the value of a value-initialized object.
@@ -189,9 +216,13 @@ template<class T>
 bool test ( T const& y, T const& z )
 {
   const boost::unit_test::counter_t counter_before_test = boost::minimal_test::errors_counter();
+
+  check_initialized_value(y);
+
   boost::value_initialized<T> x ;
   BOOST_CHECK ( y == x ) ;
   BOOST_CHECK ( y == boost::get(x) ) ;
+
   static_cast<T&>(x) = z ;
   boost::get(x) = z ;
   BOOST_CHECK ( x == z ) ;
@@ -275,6 +306,10 @@ int test_main(int, char **)
   boost::value_initialized<ArrayOfBytes> valueInitializedArrayOfBytes;
   BOOST_CHECK (std::memcmp(get(valueInitializedArrayOfBytes), zeroInitializedArrayOfBytes, sizeof(ArrayOfBytes)) == 0);
 
+  boost::value_initialized<ArrayOfBytes> valueInitializedArrayOfBytes2;
+  valueInitializedArrayOfBytes2 = valueInitializedArrayOfBytes;
+  BOOST_CHECK (std::memcmp(get(valueInitializedArrayOfBytes), get(valueInitializedArrayOfBytes2), sizeof(ArrayOfBytes)) == 0);
+
   boost::value_initialized<CopyFunctionCallTester> copyFunctionCallTester1;
   BOOST_CHECK ( ! get(copyFunctionCallTester1).is_copy_constructed);
   BOOST_CHECK ( ! get(copyFunctionCallTester1).is_assignment_called);