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diff --git a/include/c++/stl/stl/_ostream.h b/include/c++/stl/stl/_ostream.h
new file mode 100644
index 0000000..0e4c364
--- /dev/null
+++ b/include/c++/stl/stl/_ostream.h
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 1999
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */
+
+
+#ifndef _STLP_INTERNAL_OSTREAM_H
+#define _STLP_INTERNAL_OSTREAM_H
+
+#ifndef _STLP_INTERNAL_IOS_H
+#  include <stl/_ios.h>                  // For basic_ios<>.  Includes <iosfwd>.
+#endif
+
+#ifndef _STLP_INTERNAL_OSTREAMBUF_ITERATOR_H
+#  include <stl/_ostreambuf_iterator.h>
+#endif
+
+#if !defined (_STLP_NO_UNCAUGHT_EXCEPT_SUPPORT) && !defined (_STLP_INTERNAL_EXCEPTION)
+#  include <stl/_exception.h>
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+template <class _CharT, class _Traits>
+class _Osentry;
+#endif
+
+_STLP_MOVE_TO_PRIV_NAMESPACE
+
+template <class _CharT, class _Traits>
+bool __init_bostr(basic_ostream<_CharT, _Traits>& __str);
+
+_STLP_MOVE_TO_STD_NAMESPACE
+
+//----------------------------------------------------------------------
+// class basic_ostream<>
+
+template <class _CharT, class _Traits>
+class basic_ostream : virtual public basic_ios<_CharT, _Traits> {
+  typedef basic_ostream<_CharT, _Traits> _Self;
+
+#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
+  //explicitely defined as private to avoid warnings:
+  basic_ostream(_Self const&);
+  _Self& operator = (_Self const&);
+#endif
+
+public:                         // Types
+  typedef _CharT                     char_type;
+  typedef typename _Traits::int_type int_type;
+  typedef typename _Traits::pos_type pos_type;
+  typedef typename _Traits::off_type off_type;
+  typedef _Traits                    traits_type;
+  typedef basic_ios<_CharT, _Traits> _Basic_ios;
+
+public:                         // Constructor and destructor.
+  explicit basic_ostream(basic_streambuf<_CharT, _Traits>* __buf);
+  ~basic_ostream();
+
+public:                         // Hooks for manipulators.
+  typedef basic_ios<_CharT, _Traits>& (_STLP_CALL *__ios_fn)(basic_ios<_CharT, _Traits>&);
+  typedef ios_base& (_STLP_CALL *__ios_base_fn)(ios_base&);
+  typedef _Self& (_STLP_CALL *__ostream_fn)(_Self&);
+  _Self& operator<< (__ostream_fn __f) { return __f(*this); }
+  _Self & operator<< (__ios_base_fn __f) { __f(*this); return *this; }
+  _Self& operator<< (__ios_fn __ff) { __ff(*this); return *this; }
+
+private:
+  bool _M_copy_buffered(basic_streambuf<_CharT, _Traits>* __from,
+                        basic_streambuf<_CharT, _Traits>* __to);
+  bool _M_copy_unbuffered(basic_streambuf<_CharT, _Traits>* __from,
+                          basic_streambuf<_CharT, _Traits>* __to);
+
+public:
+  void _M_put_char(_CharT __c);
+
+  void _M_put_nowiden(const _CharT* __s);
+  void _M_put_widen(const char* __s);
+  bool _M_put_widen_aux(const char* __s, streamsize __n);
+
+public:                         // Unformatted output.
+  _Self& put(char_type __c);
+  _Self& write(const char_type* __s, streamsize __n);
+
+public:                         // Formatted output.
+  // Formatted output from a streambuf.
+  _Self& operator<<(basic_streambuf<_CharT, _Traits>* __buf);
+# ifndef _STLP_NO_FUNCTION_TMPL_PARTIAL_ORDER
+  // this is needed for compiling with option char = unsigned
+  _Self& operator<<(unsigned char __x) { _M_put_char(__x); return *this; }
+# endif
+  _Self& operator<<(short __x);
+  _Self& operator<<(unsigned short __x);
+  _Self& operator<<(int __x);
+#if defined (_WIN64) || !defined (_STLP_MSVC) || (_STLP_MSVC < 1300)
+  _Self& operator<<(unsigned int __x);
+#else
+/* We define this operator with size_t rather than unsigned int to avoid
+ * 64 bits warning.
+ */
+  _Self& operator<<(size_t __x);
+#endif
+  _Self& operator<<(long __x);
+  _Self& operator<<(unsigned long __x);
+#ifdef _STLP_LONG_LONG
+  _Self& operator<< (_STLP_LONG_LONG __x);
+  _Self& operator<< (unsigned _STLP_LONG_LONG __x);
+#endif
+  _Self& operator<<(float __x);
+  _Self& operator<<(double __x);
+# ifndef _STLP_NO_LONG_DOUBLE
+  _Self& operator<<(long double __x);
+# endif
+  _Self& operator<<(const void* __x);
+# ifndef _STLP_NO_BOOL
+  _Self& operator<<(bool __x);
+# endif
+
+public:                         // Buffer positioning and manipulation.
+  _Self& flush() {
+    if (this->rdbuf())
+      if (this->rdbuf()->pubsync() == -1)
+        this->setstate(ios_base::badbit);
+    return *this;
+  }
+
+  pos_type tellp() {
+    return this->rdbuf() && !this->fail()
+      ? this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::out)
+      : pos_type(-1);
+  }
+
+  _Self& seekp(pos_type __pos) {
+    if (this->rdbuf() && !this->fail()) {
+      if (this->rdbuf()->pubseekpos(__pos) == pos_type(-1)) {
+        this->setstate(ios_base::failbit);
+      }
+    }
+    return *this;
+  }
+
+  _Self& seekp(off_type __off, ios_base::seekdir __dir) {
+    if (this->rdbuf() && !this->fail())
+      this->rdbuf()->pubseekoff(__off, __dir);
+    return *this;
+  }
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+  // If we are using DLL specs, we have not to use inner classes
+  // end class declaration here
+  typedef _Osentry<_CharT, _Traits>  sentry;
+};
+#  define sentry _Osentry
+  template <class _CharT, class _Traits>
+  class _Osentry {
+    typedef _Osentry<_CharT, _Traits> _Self;
+#else
+    class sentry {
+      typedef sentry _Self;
+#endif
+    private:
+      basic_ostream<_CharT, _Traits>& _M_str;
+      //      basic_streambuf<_CharT, _Traits>* _M_buf;
+      bool _M_ok;
+    public:
+      explicit sentry(basic_ostream<_CharT, _Traits>& __str)
+        : _M_str(__str), /* _M_buf(__str.rdbuf()), */ _M_ok(_STLP_PRIV __init_bostr(__str))
+      {}
+
+      ~sentry() {
+        if (_M_str.flags() & ios_base::unitbuf)
+#if !defined (_STLP_NO_UNCAUGHT_EXCEPT_SUPPORT)
+          if (!uncaught_exception())
+#endif
+            _M_str.flush();
+      }
+
+      operator bool() const { return _M_ok; }
+    private:                        // Disable assignment and copy constructor.
+      //Implementation is here only to avoid warning with some compilers.
+      sentry(const _Self& __s) : _M_str(__s._M_str) {}
+      _Self& operator=(const _Self&) { return *this; }
+    };
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+#  undef sentry
+#else
+  // close basic_ostream class definition here
+};
+#endif
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+_STLP_EXPORT_TEMPLATE_CLASS basic_ostream<char, char_traits<char> >;
+_STLP_EXPORT_TEMPLATE_CLASS _Osentry<char, char_traits<char> >;
+#  if !defined (_STLP_NO_WCHAR_T)
+_STLP_EXPORT_TEMPLATE_CLASS basic_ostream<wchar_t, char_traits<wchar_t> >;
+_STLP_EXPORT_TEMPLATE_CLASS _Osentry<wchar_t, char_traits<wchar_t> >;
+#  endif
+#endif /* _STLP_USE_TEMPLATE_EXPORT */
+
+_STLP_MOVE_TO_PRIV_NAMESPACE
+
+// Helper functions for istream<>::sentry constructor.
+template <class _CharT, class _Traits>
+bool __init_bostr(basic_ostream<_CharT, _Traits>& __str) {
+  if (__str.good()) {
+    // boris : check if this is needed !
+    if (!__str.rdbuf())
+      __str.setstate(ios_base::badbit);
+    if (__str.tie())
+      __str.tie()->flush();
+    return __str.good();
+  }
+  else
+    return false;
+}
+
+template <class _CharT, class _Traits>
+inline basic_streambuf<_CharT, _Traits>* _STLP_CALL
+__get_ostreambuf(basic_ostream<_CharT, _Traits>& __St)
+{ return __St.rdbuf(); }
+
+_STLP_MOVE_TO_STD_NAMESPACE
+
+// Non-member functions.
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+operator<<(basic_ostream<_CharT, _Traits>& __os, _CharT __c){
+  __os._M_put_char(__c);
+  return __os;
+}
+
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+operator<<(basic_ostream<_CharT, _Traits>& __os, const _CharT* __s) {
+  __os._M_put_nowiden(__s);
+  return __os;
+}
+
+#if defined (_STLP_NO_FUNCTION_TMPL_PARTIAL_ORDER)
+// some specializations
+
+inline basic_ostream<char, char_traits<char> >& _STLP_CALL
+operator<<(basic_ostream<char, char_traits<char> >& __os, char __c) {
+  __os._M_put_char(__c);
+  return __os;
+}
+
+inline basic_ostream<char, char_traits<char> >& _STLP_CALL
+operator<<(basic_ostream<char, char_traits<char> >& __os, signed char __c) {
+  __os._M_put_char(__c);
+  return __os;
+}
+
+inline basic_ostream<char, char_traits<char> >& _STLP_CALL
+operator<<(basic_ostream<char, char_traits<char> >& __os, unsigned char __c) {
+  __os._M_put_char(__c);
+  return __os;
+}
+
+inline basic_ostream<char, char_traits<char> >& _STLP_CALL
+operator<<(basic_ostream<char, char_traits<char> >& __os, const char* __s) {
+  __os._M_put_nowiden(__s);
+  return __os;
+}
+
+inline basic_ostream<char, char_traits<char> >& _STLP_CALL
+operator<<(basic_ostream<char, char_traits<char> >& __os, const signed char* __s) {
+  __os._M_put_nowiden(__REINTERPRET_CAST(const char*,__s));
+  return __os;
+}
+
+inline basic_ostream<char, char_traits<char> >&
+operator<<(basic_ostream<char, char_traits<char> >& __os, const unsigned char* __s) {
+  __os._M_put_nowiden(__REINTERPRET_CAST(const char*,__s));
+  return __os;
+}
+
+#else
+
+// also for compilers who might use that
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+operator<<(basic_ostream<_CharT, _Traits>& __os, char __c) {
+  __os._M_put_char(__os.widen(__c));
+  return __os;
+}
+
+template <class _Traits>
+inline basic_ostream<char, _Traits>& _STLP_CALL
+operator<<(basic_ostream<char, _Traits>& __os, char __c) {
+  __os._M_put_char(__c);
+  return __os;
+}
+
+template <class _Traits>
+inline basic_ostream<char, _Traits>& _STLP_CALL
+operator<<(basic_ostream<char, _Traits>& __os, signed char __c) {
+  __os._M_put_char(__c);
+  return __os;
+}
+
+template <class _Traits>
+inline basic_ostream<char, _Traits>& _STLP_CALL
+operator<<(basic_ostream<char, _Traits>& __os, unsigned char __c) {
+  __os._M_put_char(__c);
+  return __os;
+}
+
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+operator<<(basic_ostream<_CharT, _Traits>& __os, const char* __s) {
+  __os._M_put_widen(__s);
+  return __os;
+}
+
+template <class _Traits>
+inline basic_ostream<char, _Traits>& _STLP_CALL
+operator<<(basic_ostream<char, _Traits>& __os, const char* __s) {
+  __os._M_put_nowiden(__s);
+  return __os;
+}
+
+template <class _Traits>
+inline basic_ostream<char, _Traits>& _STLP_CALL
+operator<<(basic_ostream<char, _Traits>& __os, const signed char* __s) {
+  __os._M_put_nowiden(__REINTERPRET_CAST(const char*,__s));
+  return __os;
+}
+
+template <class _Traits>
+inline basic_ostream<char, _Traits>&
+operator<<(basic_ostream<char, _Traits>& __os, const unsigned char* __s) {
+  __os._M_put_nowiden(__REINTERPRET_CAST(const char*,__s));
+  return __os;
+}
+#endif /* _STLP_NO_FUNCTION_TMPL_PARTIAL_ORDER */
+
+//----------------------------------------------------------------------
+// basic_ostream manipulators.
+
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+endl(basic_ostream<_CharT, _Traits>& __os) {
+  __os.put(__os.widen('\n'));
+  __os.flush();
+  return __os;
+}
+
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+ends(basic_ostream<_CharT, _Traits>& __os) {
+  __os.put(_STLP_DEFAULT_CONSTRUCTED(_CharT));
+  return __os;
+}
+
+template <class _CharT, class _Traits>
+inline basic_ostream<_CharT, _Traits>& _STLP_CALL
+flush(basic_ostream<_CharT, _Traits>& __os) {
+  __os.flush();
+  return __os;
+}
+
+_STLP_END_NAMESPACE
+
+#if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
+#  include <stl/_ostream.c>
+#endif
+
+#endif /* _STLP_INTERNAL_OSTREAM_H */
+
+// Local Variables:
+// mode:C++
+// End: