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diff --git a/boost/format/free_funcs.hpp b/boost/format/free_funcs.hpp
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+++ b/boost/format/free_funcs.hpp
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+// ----------------------------------------------------------------------------
+// free_funcs.hpp :  implementation of the free functions of boost::format
+// ----------------------------------------------------------------------------
+
+//  Copyright Samuel Krempp 2003. 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/format for library home page
+
+// ----------------------------------------------------------------------------
+
+#ifndef BOOST_FORMAT_FUNCS_HPP
+#define BOOST_FORMAT_FUNCS_HPP
+
+#include <boost/format/format_class.hpp>
+#include <boost/throw_exception.hpp>
+
+namespace boost {
+
+    template<class Ch, class Tr, class Alloc> inline 
+    std::basic_string<Ch, Tr, Alloc> str(const basic_format<Ch, Tr, Alloc>& f) {
+        // adds up all pieces of strings and converted items, and return the formatted string
+        return f.str();
+    }
+    namespace io {
+         using ::boost::str; // keep compatibility with when it was defined in this N.S.
+    }   // - namespace io
+
+#ifndef  BOOST_NO_TEMPLATE_STD_STREAM
+        template<class Ch, class Tr, class Alloc>
+        std::basic_ostream<Ch, Tr> & 
+        operator<<( std::basic_ostream<Ch, Tr> & os,
+                    const basic_format<Ch, Tr, Alloc>& f)
+#else
+        template<class Ch, class Tr, class Alloc>
+        std::ostream & 
+        operator<<( std::ostream & os,
+                    const basic_format<Ch, Tr, Alloc>& f)
+#endif
+        // effect: "return os << str(f);" but we can do it faster
+    {
+        typedef boost::basic_format<Ch, Tr, Alloc>   format_t;
+        if(f.items_.size()==0) 
+            os << f.prefix_;
+        else {
+            if(f.cur_arg_ < f.num_args_)
+                if( f.exceptions() & io::too_few_args_bit )
+                    // not enough variables supplied
+                    boost::throw_exception(io::too_few_args(f.cur_arg_, f.num_args_)); 
+            if(f.style_ & format_t::special_needs) 
+                os << f.str();
+            else {
+                // else we dont have to count chars output, so we dump directly to os :
+                os << f.prefix_;
+                for(unsigned long i=0; i<f.items_.size(); ++i) {
+                    const typename format_t::format_item_t& item = f.items_[i];
+                    os << item.res_;
+                    os << item.appendix_;
+                }
+            }
+        }
+        f.dumped_=true;
+        return os;
+    }
+
+} // namespace boost
+
+
+#endif // BOOST_FORMAT_FUNCS_HPP