Ticket #5483: initialized-assignment-fix.patch

boost/utility/value_init.hpp

@@ -11 +11 @@
 // 20 Feb 2009 (Fixed logical const-ness issues) Niels Dekker, Fernando Cacciola
 // 03 Apr 2010 (Added initialized<T>, suggested by Jeffrey Hellrung, fixing #3472) Niels Dekker
 // 30 May 2010 (Made memset call conditional, fixing #3869) Niels Dekker
+// 17 Apr 2011 (Added operator=(<T>const&), fixing #5483) Christian Masloch
 //
 #ifndef BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP
 #define BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP
@@ -125 +126 @@
       return *this;
     }
 
+    initialized & operator=(T const & arg)
+    {
+      // Assignment is only allowed when T is non-const.
+      BOOST_STATIC_ASSERT( ! is_const<T>::value );
+      *wrapper_address() = wrapper(arg);
+      return *this;
+    }
+
     ~initialized()
     {
       wrapper_address()->wrapper::~wrapper();
@@ -214 +223 @@
     {
       return m_data;
     }
+
+    value_initialized & operator=(value_initialized const & arg)
+    {
+      // Assignment is only allowed when T is non-const.
+      BOOST_STATIC_ASSERT( ! is_const<T>::value );
+      m_data = arg.m_data;
+      return *this;
+    }
+
+    value_initialized & operator=(T const & arg)
+    {
+      // Assignment is only allowed when T is non-const.
+      BOOST_STATIC_ASSERT( ! is_const<T>::value );
+      m_data = arg;
+      return *this;
+    }
 } ;