This commit was manufactured by cvs2svn to create branch

'thread_rewrite'.

[SVN r30953]

include/boost/logic/tribool.hpp

@@ -1,6 +1,6 @@
 // Three-state boolean logic library
 
-// Copyright Doug Gregor 2002-2004. Use, modification and
+// Copyright Douglas Gregor 2002-2004. 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)
@@ -118,7 +118,7 @@ public:
    * The actual stored value in this 3-state boolean, which may be false, true,
    * or indeterminate.
    */
-  enum { false_value, true_value, indeterminate_value } value;
+  enum value_t { false_value, true_value, indeterminate_value } value;
 };
 
 // Check if the given tribool has an indeterminate value. Also doubles as a

include/boost/logic/tribool_fwd.hpp

@@ -1,6 +1,6 @@
 // Three-state boolean logic library
 
-// Copyright Doug Gregor 2002-2004. Use, modification and
+// Copyright Douglas Gregor 2002-2004. 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)

include/boost/logic/tribool_io.hpp

@@ -1,6 +1,6 @@
 // Three-state boolean logic library
 
-// Copyright Doug Gregor 2002-2003. Use, modification and
+// Copyright Douglas Gregor 2002-2004. 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)
@@ -104,9 +104,10 @@ template<>
 inline std::basic_string<char> get_default_indeterminate_name<char>()
 { return "indeterminate"; }
 
-#if BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
 // VC++ 6.0 chokes on the specialization below, so we're stuck without 
-// wchar_t support. What a pain.
+// wchar_t support. What a pain. TODO: it might just need a the template 
+// parameter as function parameter...
 #else
 #  ifndef BOOST_NO_WCHAR_T
 /// Returns the wide character string L"indeterminate".
@@ -201,6 +202,26 @@ operator<<(std::basic_ostream<CharT, Traits>& out, tribool x)
   return out;
 }
 
+/**
+ * \brief Writes the indeterminate tribool value to a stream.
+ *
+ * This routine outputs either the integer
+ * value 2 (if <tt>(out.flags() & std::ios_base::boolalpha) == 0</tt>)
+ * or the name of the indeterminate value. The name of the
+ * indeterminate value comes from the indeterminate_name facet (if it
+ * is defined in the output stream's locale), or from the
+ * get_default_indeterminate_name function (if it is not defined in the
+ * locale or if the C++ standard library implementation does not
+ * support locales).
+ *
+ * \returns @p out
+ */
+template<typename CharT, typename Traits>
+inline std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& out, 
+           bool (*)(tribool, detail::indeterminate_t))
+{ return out << tribool(indeterminate); } 
+
 /**
  * \brief Reads a tribool value from a stream.
  *