[boost] Optional patch

From: Hugo Duncan (hugoduncan_at_[hidden])
Date: 2004-07-16 08:36:00

The following clears the unexpected failure for optional on borland-5.6.4

Index: optional.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/optional/optional.hpp,v
retrieving revision 1.1
diff -w -u -r1.1 optional.hpp
--- optional.hpp	7 Jul 2004 15:10:03 -0000	1.1
+++ optional.hpp	16 Jul 2004 13:11:36 -0000
@@ -347,7 +347,7 @@
      reference_const_type dereference( internal_type const* p,  
is_reference_tag     ) const { return p->get() ; }
      reference_type       dereference( internal_type*       p,  
is_reference_tag     )       { return p->get() ; }

-    void destroy_impl ( is_not_reference_tag ) { get_ptr_impl()->T::~T()  
; m_initialized = false ; }
+    void destroy_impl ( is_not_reference_tag )  
{ get_ptr_impl()->internal_type::~internal_type() ; m_initialized = false  
; }
      void destroy_impl ( is_reference_tag     ) { m_initialized = false ; }

      // If T is of reference type, trying to get a pointer to the held  
value must result in a compile-time error.