--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/boostlibrary/boost/type_traits/is_unsigned.hpp	Mon May 10 19:54:49 2010 +0100
@@ -0,0 +1,123 @@
+
+//  (C) Copyright John Maddock 2005.  
+//  Use, modification and distribution are 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).
+//
+//  See http://www.boost.org/libs/type_traits for most recent version including documentation.
+
+
+#ifndef BOOST_TT_IS_UNSIGNED_HPP_INCLUDED
+#define BOOST_TT_IS_UNSIGNED_HPP_INCLUDED
+
+#include <boost/type_traits/is_integral.hpp>
+#include <boost/type_traits/is_enum.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/detail/ice_or.hpp>
+
+// should be the last #include
+#include <boost/type_traits/detail/bool_trait_def.hpp>
+
+namespace boost {
+
+#if !defined( __CODEGEARC__ )
+
+namespace detail{
+
+#if !(defined(__EDG_VERSION__) && __EDG_VERSION__ <= 238)
+
+template <class T>
+struct is_ununsigned_helper
+{
+   typedef typename remove_cv<T>::type no_cv_t;
+   BOOST_STATIC_CONSTANT(bool, value = (static_cast<no_cv_t>(-1) > 0));
+};
+
+template <bool integral_type>
+struct is_ununsigned_select_helper
+{
+   template <class T>
+   struct rebind
+   {
+      typedef is_ununsigned_helper<T> type;
+   };
+};
+
+template <>
+struct is_ununsigned_select_helper<false>
+{
+   template <class T>
+   struct rebind
+   {
+      typedef false_type type;
+   };
+};
+
+template <class T>
+struct is_unsigned_imp
+{
+   typedef is_ununsigned_select_helper< 
+      ::boost::type_traits::ice_or<
+         ::boost::is_integral<T>::value,
+         ::boost::is_enum<T>::value>::value 
+   > selector;
+   typedef typename selector::template rebind<T> binder;
+   typedef typename binder::type type;
+   BOOST_STATIC_CONSTANT(bool, value = type::value);
+};
+
+#else
+
+template <class T> struct is_unsigned_imp : public false_type{};
+template <> struct is_unsigned_imp<unsigned char> : public true_type{};
+template <> struct is_unsigned_imp<const unsigned char> : public true_type{};
+template <> struct is_unsigned_imp<volatile unsigned char> : public true_type{};
+template <> struct is_unsigned_imp<const volatile unsigned char> : public true_type{};
+template <> struct is_unsigned_imp<unsigned short> : public true_type{};
+template <> struct is_unsigned_imp<const unsigned short> : public true_type{};
+template <> struct is_unsigned_imp<volatile unsigned short> : public true_type{};
+template <> struct is_unsigned_imp<const volatile unsigned short> : public true_type{};
+template <> struct is_unsigned_imp<unsigned int> : public true_type{};
+template <> struct is_unsigned_imp<const unsigned int> : public true_type{};
+template <> struct is_unsigned_imp<volatile unsigned int> : public true_type{};
+template <> struct is_unsigned_imp<const volatile unsigned int> : public true_type{};
+template <> struct is_unsigned_imp<unsigned long> : public true_type{};
+template <> struct is_unsigned_imp<const unsigned long> : public true_type{};
+template <> struct is_unsigned_imp<volatile unsigned long> : public true_type{};
+template <> struct is_unsigned_imp<const volatile unsigned long> : public true_type{};
+#ifdef BOOST_HAS_LONG_LONG
+template <> struct is_unsigned_imp<unsigned long long> : public true_type{};
+template <> struct is_unsigned_imp<const unsigned long long> : public true_type{};
+template <> struct is_unsigned_imp<volatile unsigned long long> : public true_type{};
+template <> struct is_unsigned_imp<const volatile unsigned long long> : public true_type{};
+#endif
+#if defined(CHAR_MIN) && (CHAR_MIN == 0)
+template <> struct is_unsigned_imp<char> : public true_type{};
+template <> struct is_unsigned_imp<const char> : public true_type{};
+template <> struct is_unsigned_imp<volatile char> : public true_type{};
+template <> struct is_unsigned_imp<const volatile char> : public true_type{};
+#endif
+#if defined(WCHAR_MIN) && (WCHAR_MIN == 0)
+template <> struct is_unsigned_imp<wchar_t> : public true_type{};
+template <> struct is_unsigned_imp<const wchar_t> : public true_type{};
+template <> struct is_unsigned_imp<volatile wchar_t> : public true_type{};
+template <> struct is_unsigned_imp<const volatile wchar_t> : public true_type{};
+#endif
+
+#endif
+
+}
+
+#endif // !defined( __CODEGEARC__ )
+
+#if defined( __CODEGEARC__ )
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_unsigned,T,__is_unsigned(T))
+#else
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_unsigned,T,::boost::detail::is_unsigned_imp<T>::value)
+#endif
+
+} // namespace boost
+
+#include <boost/type_traits/detail/bool_trait_undef.hpp>
+
+#endif // BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED