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diff --git a/include/c++/stl/stl/_auto_ptr.h b/include/c++/stl/stl/_auto_ptr.h
new file mode 100644
index 0000000..715130a
--- /dev/null
+++ b/include/c++/stl/stl/_auto_ptr.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 1997-1999
+ * 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_AUTO_PTR_H
+# define _STLP_AUTO_PTR_H
+
+_STLP_BEGIN_NAMESPACE
+// implementation primitive
+class __ptr_base {
+public:
+  void* _M_p;
+  void  __set(const void* p) { _M_p = __CONST_CAST(void*,p); }
+  void  __set(void* p) { _M_p = p; }
+};
+
+template <class _Tp>
+class auto_ptr_ref {
+public:
+  __ptr_base& _M_r;
+  _Tp* const _M_p;
+
+  auto_ptr_ref(__ptr_base& __r, _Tp* __p) : _M_r(__r), _M_p(__p) {  }
+
+  _Tp* release() const { _M_r.__set((void*)0); return _M_p; }
+
+private:
+  //explicitely defined as private to avoid warnings:
+  typedef auto_ptr_ref<_Tp> _Self;
+  _Self& operator = (_Self const&);
+};
+
+template<class _Tp>
+class auto_ptr :  public __ptr_base {
+public:
+  typedef _Tp element_type;
+  typedef auto_ptr<_Tp> _Self;
+
+  _Tp* release() _STLP_NOTHROW {
+    _Tp* __px = this->get();
+    this->_M_p = 0;
+    return __px;
+  }
+
+  void reset(_Tp* __px = 0) _STLP_NOTHROW {
+    _Tp* __pt = this->get();
+    if (__px != __pt)
+      delete __pt;
+    this->__set(__px);
+  }
+
+  _Tp* get() const _STLP_NOTHROW
+  { return __REINTERPRET_CAST(_Tp*,__CONST_CAST(void*,_M_p)); }
+
+#if !defined (_STLP_NO_ARROW_OPERATOR)
+  _Tp* operator->() const _STLP_NOTHROW {
+    _STLP_VERBOSE_ASSERT(get()!=0, _StlMsg_AUTO_PTR_NULL)
+    return get();
+  }
+#endif
+  _Tp& operator*() const _STLP_NOTHROW {
+    _STLP_VERBOSE_ASSERT(get()!= 0, _StlMsg_AUTO_PTR_NULL)
+    return *get();
+  }
+
+  explicit auto_ptr(_Tp* __px = 0) _STLP_NOTHROW { this->__set(__px); }
+
+#if defined (_STLP_MEMBER_TEMPLATES)
+#  if !defined (_STLP_NO_TEMPLATE_CONVERSIONS)
+  template<class _Tp1> auto_ptr(auto_ptr<_Tp1>& __r) _STLP_NOTHROW {
+    _Tp* __conversionCheck = __r.release();
+    this->__set(__conversionCheck);
+  }
+#  endif
+  template<class _Tp1> auto_ptr<_Tp>& operator=(auto_ptr<_Tp1>& __r) _STLP_NOTHROW {
+    _Tp* __conversionCheck = __r.release();
+    reset(__conversionCheck);
+    return *this;
+  }
+#endif
+
+  auto_ptr(_Self& __r) _STLP_NOTHROW { this->__set(__r.release()); }
+
+  _Self& operator=(_Self& __r) _STLP_NOTHROW {
+    reset(__r.release());
+    return *this;
+  }
+
+  ~auto_ptr() _STLP_NOTHROW { /* boris : reset(0) might be better */ delete this->get(); }
+
+  auto_ptr(auto_ptr_ref<_Tp> __r) _STLP_NOTHROW
+  { this->__set(__r.release()); }
+
+  _Self& operator=(auto_ptr_ref<_Tp> __r) _STLP_NOTHROW {
+    reset(__r.release());
+    return *this;
+  }
+
+#if defined(_STLP_MEMBER_TEMPLATES) && !defined(_STLP_NO_TEMPLATE_CONVERSIONS)
+  template<class _Tp1> operator auto_ptr_ref<_Tp1>() _STLP_NOTHROW
+  { return auto_ptr_ref<_Tp1>(*this, this->get()); }
+  template<class _Tp1> operator auto_ptr<_Tp1>() _STLP_NOTHROW
+  { return auto_ptr<_Tp1>(release()); }
+#else
+  operator auto_ptr_ref<_Tp>() _STLP_NOTHROW
+  { return auto_ptr_ref<_Tp>(*this, this->get()); }
+#endif
+};
+_STLP_END_NAMESPACE
+
+#endif /* _STLP_AUTO_PTR_H */
+
+// Local Variables:
+// mode:C++
+// End: