Index: include/llvm/ADT/scoped_ptr.h
===================================================================
--- include/llvm/ADT/scoped_ptr.h	(revision 0)
+++ include/llvm/ADT/scoped_ptr.h	(revision 0)
@@ -0,0 +1,113 @@
+//  (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
+//  Copyright (c) 2001, 2002 Peter Dimov
+//
+//  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)
+//
+//  http://www.boost.org/libs/smart_ptr/scoped_ptr.htm
+//
+
+#ifndef LLVM_SCOPED_PTR_HPP_INCLUDED
+#define LLVM_SCOPED_PTR_HPP_INCLUDED
+
+#include <cassert>
+
+namespace llvm {
+
+// verify that types are complete for increased safety
+template<class T> inline void checked_delete(T * x) {
+    // intentionally complex - simplification causes regressions
+    typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
+    (void) sizeof(type_must_be_complete);
+    delete x;
+}
+
+//  scoped_ptr mimics a built-in pointer except that it guarantees deletion
+//  of the object pointed to, either on destruction of the scoped_ptr or via
+//  an explicit reset(). scoped_ptr is a simple solution for simple needs;
+//  use shared_ptr or std::auto_ptr if your needs are more complex.
+
+template<class T> class scoped_ptr // noncopyable
+{
+private:
+
+    T * ptr;
+
+    scoped_ptr(scoped_ptr const &);
+    scoped_ptr & operator=(scoped_ptr const &);
+
+    typedef scoped_ptr<T> this_type;
+
+public:
+
+    typedef T element_type;
+
+    explicit scoped_ptr(T * p = 0): ptr(p) // never throws
+    {
+    }
+
+    ~scoped_ptr() // never throws
+    {
+       llvm::checked_delete(ptr);
+    }
+
+    void reset(T * p = 0) // never throws
+    {
+        assert( (p == 0 || p != ptr) && "scoped_ptr: self-reset error"); // catch self-reset errors
+        this_type(p).swap(*this);
+    }
+
+    T & operator*() const // never throws
+    {
+        assert(ptr != 0 && "scoped_ptr: Trying to dereference a null pointeur");
+        return *ptr;
+    }
+
+    T * operator->() const // never throws
+    {
+        assert(ptr != 0 && "scoped_ptr: Trying to dereference a null pointeur");
+        return ptr;
+    }
+
+    T * get() const // never throws
+    {
+        return ptr;
+    }
+
+    // implicit conversion to "bool"
+    typedef T * this_type::*unspecified_bool_type;
+
+    operator unspecified_bool_type() const // never throws
+    {
+        return ptr == 0? 0: &this_type::ptr;
+    }
+
+    bool operator! () const // never throws
+    {
+        return ptr == 0;
+    }
+
+    void swap(scoped_ptr & b) // never throws
+    {
+        T * tmp = b.ptr;
+        b.ptr = ptr;
+        ptr = tmp;
+    }
+};
+
+template<class T> inline void swap(scoped_ptr<T> & a, scoped_ptr<T> & b) // never throws
+{
+    a.swap(b);
+}
+
+// get_pointer(p) is a generic way to say p.get()
+
+template<class T> inline T * get_pointer(scoped_ptr<T> const & p)
+{
+    return p.get();
+}
+
+} // namespace llvm
+
+#endif // #ifndef LLVM_SCOPED_PTR_HPP_INCLUDED