--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epoc32/include/stdapis/boost/pending/ct_if.hpp	Tue Mar 16 16:12:26 2010 +0000
@@ -0,0 +1,111 @@
+// (C) Copyright Jeremy Siek 2000.
+// 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)
+
+// The ct_if implementation that avoids partial specialization is
+// based on the IF class by Ulrich W. Eisenecker and Krzysztof
+// Czarnecki.
+
+#ifndef BOOST_CT_IF_HPP
+#define BOOST_CT_IF_HPP
+
+#include <boost/config.hpp>
+
+/*
+  There is a bug in the Borland compiler with regards to using
+  integers to specialize templates. This made it hard to use ct_if in
+  the graph library. Changing from 'ct_if' to 'ct_if_t' fixed the
+  problem.
+*/
+
+#include <boost/type_traits/integral_constant.hpp> // true_type and false_type
+
+namespace boost {
+
+  struct ct_if_error { };
+
+  template <class A, class B>
+  struct ct_and { typedef false_type type; };
+  template <> struct ct_and<true_type,true_type> { typedef true_type type; };
+
+  template <class A> struct ct_not { typedef ct_if_error type; };
+  template <> struct ct_not<true_type> { typedef false_type type; };
+  template <> struct ct_not<false_type> { typedef true_type type; };
+
+#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+// agurt, 15/sep/02: in certain cases Borland has problems with
+// choosing the right 'ct_if' specialization even though 'cond' 
+// _does_ equal '1'; the easiest way to fix it is to make first 
+// 'ct_if' non-type template parameter boolean.
+#if !defined(__BORLANDC__)
+  template <bool cond, class A, class B>
+  struct ct_if { typedef ct_if_error type; };
+  template <class A, class B>
+  struct ct_if<true, A, B> { typedef A type; };
+  template <class A, class B>
+  struct ct_if<false, A, B> { typedef B type; };
+#else
+  template <bool cond, class A, class B>
+  struct ct_if { typedef A type; };
+  template <class A, class B>
+  struct ct_if<false, A, B> { typedef B type; };
+#endif
+
+  template <class cond, class A, class B>
+  struct ct_if_t { typedef ct_if_error type; };
+  template <class A, class B>
+  struct ct_if_t<true_type, A, B> { typedef A type; };
+  template <class A, class B>
+  struct ct_if_t<false_type, A, B> { typedef B type; };
+
+#else
+
+  namespace detail {
+
+    template <int condition, class A, class B> struct IF;
+    template <int condition> struct SlectSelector;
+    struct SelectFirstType;
+    struct SelectSecondType;
+    
+    struct SelectFirstType {
+      template<class A, class B>
+      struct Template {        typedef A type; };
+    };
+    
+    struct SelectSecondType {
+      template<class A, class B>
+      struct Template { typedef B type; };
+    };
+    
+    template<int condition>
+    struct SlectSelector {
+      typedef SelectFirstType type;
+    };
+    
+    template <>
+    struct SlectSelector<0> {
+      typedef SelectSecondType type;
+    };
+
+  } // namespace detail
+    
+  template<int condition, class A, class B>
+  struct ct_if
+  {
+    typedef typename detail::SlectSelector<condition>::type Selector;
+    typedef typename Selector::template Template<A, B>::type type;
+  };
+  
+  template <class cond, class A, class B>
+  struct ct_if_t { 
+    typedef typename ct_if<cond::value, A, B>::type type;
+  };
+
+#endif
+
+} // namespace boost
+
+#endif // BOOST_CT_IF_HPP
+