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diff --git a/boost/algorithm/string/detail/case_conv.hpp b/boost/algorithm/string/detail/case_conv.hpp
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+++ b/boost/algorithm/string/detail/case_conv.hpp
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+//  Boost string_algo library string_funct.hpp header file  ---------------------------//
+
+//  Copyright Pavol Droba 2002-2003.
+//
+// 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)
+
+//  See http://www.boost.org/ for updates, documentation, and revision history.
+
+#ifndef BOOST_STRING_CASE_CONV_DETAIL_HPP
+#define BOOST_STRING_CASE_CONV_DETAIL_HPP
+
+#include <boost/algorithm/string/config.hpp>
+#include <locale>
+#include <functional>
+
+#include <boost/type_traits/make_unsigned.hpp>
+
+namespace boost {
+    namespace algorithm {
+        namespace detail {
+
+//  case conversion functors -----------------------------------------------//
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(push)
+#pragma warning(disable:4512) //assignment operator could not be generated
+#endif
+
+            // a tolower functor
+            template<typename CharT>
+            struct to_lowerF : public std::unary_function<CharT, CharT>
+            {
+                // Constructor
+                to_lowerF( const std::locale& Loc ) : m_Loc( &Loc ) {}
+
+                // Operation
+                CharT operator ()( CharT Ch ) const
+                {
+                    #if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
+                        return std::tolower( static_cast<typename boost::make_unsigned <CharT>::type> ( Ch ));
+                    #else
+                        return std::tolower<CharT>( Ch, *m_Loc );
+                    #endif
+                }
+            private:
+                const std::locale* m_Loc;
+            };
+
+            // a toupper functor
+            template<typename CharT>
+            struct to_upperF : public std::unary_function<CharT, CharT>
+            {
+                // Constructor
+                to_upperF( const std::locale& Loc ) : m_Loc( &Loc ) {}
+
+                // Operation
+                CharT operator ()( CharT Ch ) const
+                {
+                    #if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
+                        return std::toupper( static_cast<typename boost::make_unsigned <CharT>::type> ( Ch ));
+                    #else
+                        return std::toupper<CharT>( Ch, *m_Loc );
+                    #endif
+                }
+            private:
+                const std::locale* m_Loc;
+            };
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+
+// algorithm implementation -------------------------------------------------------------------------
+
+            // Transform a range
+            template<typename OutputIteratorT, typename RangeT, typename FunctorT>
+            OutputIteratorT transform_range_copy(
+                OutputIteratorT Output,
+                const RangeT& Input,
+                FunctorT Functor)
+            {
+                return std::transform( 
+                    ::boost::begin(Input), 
+                    ::boost::end(Input), 
+                    Output,
+                    Functor);
+            }
+
+            // Transform a range (in-place)
+            template<typename RangeT, typename FunctorT>
+            void transform_range(
+                const RangeT& Input,
+                FunctorT Functor)
+            {
+                std::transform( 
+                    ::boost::begin(Input), 
+                    ::boost::end(Input), 
+                    ::boost::begin(Input),
+                    Functor);
+            }
+
+            template<typename SequenceT, typename RangeT, typename FunctorT>
+            inline SequenceT transform_range_copy( 
+                const RangeT& Input, 
+                FunctorT Functor)
+            {
+                return SequenceT(
+                    ::boost::make_transform_iterator(
+                        ::boost::begin(Input),
+                        Functor),
+                    ::boost::make_transform_iterator(
+                        ::boost::end(Input), 
+                        Functor));
+            }
+
+        } // namespace detail
+    } // namespace algorithm
+} // namespace boost
+
+
+#endif  // BOOST_STRING_CASE_CONV_DETAIL_HPP