diff --git a/compatibility.htm b/compatibility.htm
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--- /dev/null
+++ b/compatibility.htm
@@ -0,0 +1,88 @@
+
+
+
+ Smart Pointer Changes
+
+
+
+ 
Smart Pointer Changes
+ The February 2002 change to the Boost smart pointers introduced a number of
+ changes. Since the previous version of the smart pointers was in use for a long
+ time, it's useful to have a detailed list of what changed from a library user's
+ point of view.
+ Note that for compilers that don't support member templates well enough, a
+ separate implementation is used that lacks many of the new features and is more
+ like the old version.
+ Features Requiring Code Changes to Take Advantage
+
+ -
+ The smart pointer class templates now each have their own header file. For
+ compatibility, the <boost/smart_ptr.hpp>
+ header now includes the headers for the four classic smart pointer class
+ templates.
+
-
+ The weak_ptr
+ template was added.
+
-
+ The new shared_ptr and shared_array relax the requirement that
+ the pointed-to object's destructor must be visible when instantiating the shared_ptr
+ destructor. This makes it easier to have shared_ptr members in classes without
+ explicit destructors.
+
-
+ A custom deallocator can be passed in when creating a shared_ptr or shared_array.
+
-
+ shared_static_cast and shared_dynamic_cast function templates are
+ provided which work for shared_ptr and weak_ptr as static_cast
+ and dynamic_cast
+ do for pointers.
+
-
+ The self-assignment misfeature has been removed from shared_ptr::reset,
+ although it is still present in scoped_ptr, and in std::auto_ptr.
+ Calling reset with a pointer to the object that's already owned by the shared_ptr
+ results in undefined behavior (an assertion, or eventually a double-delete if
+ assertions are off).
+
-
+ The BOOST_SMART_PTR_CONVERSION
+ feature has been removed.
+
-
+ shared_ptr<void> is now allowed.
+
+ Features That Improve Robustness
+
+ -
+ The manipulation of use counts is now thread safe on
+ Windows, Linux, and platforms that support pthreads. See the
+ <boost/detail/atomic_count.hpp>
+ file for details
+
-
+ The new shared_ptr will always delete the object using the pointer it was
+ originally constructed with. This prevents subtle problems that could happen if
+ the last shared_ptr was a pointer to a sub-object of a class that did
+ not have a virtual destructor.
+
+ Implementation Details
+
+ -
+ Some bugs in the assignment operator implementations and in reset
+ have been fixed by using the "copy and swap" idiom.
+
-
+ Assertions have been added to check preconditions of various functions;
+ however, since these use the new <boost/assert.hpp>
+ header, the assertions are disabled by default.
+
-
+ The partial specialization of std::less has been replaced by operator<
+ overloads which accomplish the same thing without relying on undefined
+ behavior.
+
-
+ The incorrect overload of std::swap has been replaced by boost::swap,
+ which has many of the same advantages for generic programming but does not
+ violate the C++ standard.
+
+
+ Revised 1 February 2002
+ Copyright 2002 Darin Adler. 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.
+
+
diff --git a/enable_shared_from_this.html b/enable_shared_from_this.html
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--- /dev/null
+++ b/enable_shared_from_this.html
@@ -0,0 +1,91 @@
+
+
+
+ Boost: enable_shared_from_this.hpp documentation
+
+
+
+
+
+ |
+ |
+
+ enable_shared_from_this.hpp
+ |
+
+
+ | |
+
+
+
+
+ The header <boost/enable_shared_from_this.hpp> defines
+ the class template enable_shared_from_this. It is used as a
+ base class that allows a shared_ptr to the current
+ object to be obtained from within a member function.
+
+ enable_shared_from_this<T> defines two member functions
+ called shared_from_this that return a shared_ptr<T>
+ and shared_ptr<T const>, depending on constness, to this.
+
+
+class Y: public enable_shared_from_this<Y>
+{
+public:
+
+ shared_ptr<Y> f()
+ {
+ return shared_from_this();
+ }
+}
+
+int main()
+{
+ shared_ptr<Y> p(new Y);
+ shared_ptr<Y> q = p->f();
+ assert(p == q);
+ assert(!(p < q || q < p)); // p and q must share ownership
+}
+
+
+
+namespace boost
+{
+
+template<class T> class enable_shared_from_this
+{
+public:
+
+ shared_ptr<T> shared_from_this();
+ shared_ptr<T const> shared_from_this() const;
+}
+
+}
+
+ template<class T> shared_ptr<T>
+ enable_shared_from_this<T>::shared_from_this();
+ template<class T> shared_ptr<T const>
+ enable_shared_from_this<T>::shared_from_this() const;
+
+
+ Requires: enable_shared_from_this<T> must be an
+ accessible base class of T. *this must be a subobject
+ of an instance t of type T . There must exist
+ at least one shared_ptr instance p that owns
+ t.
+
+
+ Returns: A shared_ptr<T> instance r that shares
+ ownership with p.
+
+
+ Postconditions: r.get() == this.
+
+
+
+
+ Copyright © 2002, 2003 by 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.
+
+
diff --git a/example/scoped_ptr_example.cpp b/example/scoped_ptr_example.cpp
new file mode 100644
index 0000000..3dcfbb1
--- /dev/null
+++ b/example/scoped_ptr_example.cpp
@@ -0,0 +1,23 @@
+// Boost scoped_ptr_example implementation file -----------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+#include "scoped_ptr_example.hpp"
+#include
+
+class example::implementation
+{
+ public:
+ ~implementation() { std::cout << "destroying implementation\n"; }
+};
+
+example::example() : _imp( new implementation ) {}
+
+void example::do_something() { std::cout << "did something\n"; }
+
+example::~example() {}
diff --git a/example/scoped_ptr_example.hpp b/example/scoped_ptr_example.hpp
new file mode 100644
index 0000000..0d9c603
--- /dev/null
+++ b/example/scoped_ptr_example.hpp
@@ -0,0 +1,29 @@
+// Boost scoped_ptr_example header file ------------------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+#include
+#include
+
+// The point of this example is to prove that even though
+// example::implementation is an incomplete type in translation units using
+// this header, scoped_ptr< implementation > is still valid because the type
+// is complete where it counts - in the inplementation translation unit where
+// destruction is actually instantiated.
+
+class example : private boost::noncopyable
+{
+ public:
+ example();
+ ~example();
+ void do_something();
+ private:
+ class implementation;
+ boost::scoped_ptr< implementation > _imp; // hide implementation details
+};
+
diff --git a/example/scoped_ptr_example_test.cpp b/example/scoped_ptr_example_test.cpp
new file mode 100644
index 0000000..26b3a18
--- /dev/null
+++ b/example/scoped_ptr_example_test.cpp
@@ -0,0 +1,17 @@
+// Boost scoped_ptr_example_test main program -------------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+#include "scoped_ptr_example.hpp"
+
+int main()
+{
+ example my_example;
+ my_example.do_something();
+ return 0;
+}
diff --git a/example/shared_ptr_example.cpp b/example/shared_ptr_example.cpp
new file mode 100644
index 0000000..c3b1f3b
--- /dev/null
+++ b/example/shared_ptr_example.cpp
@@ -0,0 +1,95 @@
+// Boost shared_ptr_example.cpp --------------------------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+// Revision History
+// 21 May 01 Initial complete version (Beman Dawes)
+
+// The original code for this example appeared in the shared_ptr documentation.
+// Ray Gallimore pointed out that foo_set was missing a Compare template
+// argument, so would not work as intended. At that point the code was
+// turned into an actual .cpp file so it could be compiled and tested.
+
+#include
+#include
+#include
+#include
+#include
+
+// The application will produce a series of
+// objects of type Foo which later must be
+// accessed both by occurrence (std::vector)
+// and by ordering relationship (std::set).
+
+struct Foo
+{
+ Foo( int _x ) : x(_x) {}
+ ~Foo() { std::cout << "Destructing a Foo with x=" << x << "\n"; }
+ int x;
+ /* ... */
+};
+
+typedef boost::shared_ptr FooPtr;
+
+struct FooPtrOps
+{
+ bool operator()( const FooPtr & a, const FooPtr & b )
+ { return a->x > b->x; }
+ void operator()( const FooPtr & a )
+ { std::cout << a->x << "\n"; }
+};
+
+int main()
+{
+ std::vector foo_vector;
+ std::set foo_set; // NOT multiset!
+
+ FooPtr foo_ptr( new Foo( 2 ) );
+ foo_vector.push_back( foo_ptr );
+ foo_set.insert( foo_ptr );
+
+ foo_ptr.reset( new Foo( 1 ) );
+ foo_vector.push_back( foo_ptr );
+ foo_set.insert( foo_ptr );
+
+ foo_ptr.reset( new Foo( 3 ) );
+ foo_vector.push_back( foo_ptr );
+ foo_set.insert( foo_ptr );
+
+ foo_ptr.reset ( new Foo( 2 ) );
+ foo_vector.push_back( foo_ptr );
+ foo_set.insert( foo_ptr );
+
+ std::cout << "foo_vector:\n";
+ std::for_each( foo_vector.begin(), foo_vector.end(), FooPtrOps() );
+
+ std::cout << "\nfoo_set:\n";
+ std::for_each( foo_set.begin(), foo_set.end(), FooPtrOps() );
+ std::cout << "\n";
+
+// Expected output:
+//
+// foo_vector:
+// 2
+// 1
+// 3
+// 2
+//
+// foo_set:
+// 3
+// 2
+// 1
+//
+// Destructing a Foo with x=2
+// Destructing a Foo with x=1
+// Destructing a Foo with x=3
+// Destructing a Foo with x=2
+
+ return 0;
+}
+
diff --git a/example/shared_ptr_example2.cpp b/example/shared_ptr_example2.cpp
new file mode 100644
index 0000000..fdefc8d
--- /dev/null
+++ b/example/shared_ptr_example2.cpp
@@ -0,0 +1,22 @@
+// Boost shared_ptr_example2 implementation file -----------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+#include "shared_ptr_example2.hpp"
+#include
+
+class example::implementation
+{
+ public:
+ ~implementation() { std::cout << "destroying implementation\n"; }
+};
+
+example::example() : _imp( new implementation ) {}
+
+void example::do_something()
+ { std::cout << "use_count() is " << _imp.use_count() << "\n"; }
diff --git a/example/shared_ptr_example2.hpp b/example/shared_ptr_example2.hpp
new file mode 100644
index 0000000..5ca7a07
--- /dev/null
+++ b/example/shared_ptr_example2.hpp
@@ -0,0 +1,31 @@
+// Boost shared_ptr_example2 header file -----------------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+#include
+
+// This example demonstrates the handle/body idiom (also called pimpl and
+// several other names). It separates the interface (in this header file)
+// from the implementation (in shared_ptr_example2.cpp).
+
+// Note that even though example::implementation is an incomplete type in
+// some translation units using this header, shared_ptr< implementation >
+// is still valid because the type is complete where it counts - in the
+// shared_ptr_example2.cpp translation unit where functions requiring a
+// complete type are actually instantiated.
+
+class example
+{
+public:
+ example();
+ void do_something();
+private:
+ class implementation;
+ boost::shared_ptr< implementation > _imp; // hide implementation details
+};
+
diff --git a/example/shared_ptr_example2_test.cpp b/example/shared_ptr_example2_test.cpp
new file mode 100644
index 0000000..2702cb8
--- /dev/null
+++ b/example/shared_ptr_example2_test.cpp
@@ -0,0 +1,22 @@
+// Boost shared_ptr_example2_test main program ------------------------------//
+
+// Copyright Beman Dawes 2001. 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/libs/smart_ptr for documentation.
+
+#include "shared_ptr_example2.hpp"
+
+int main()
+{
+ example a;
+ a.do_something();
+ example b(a);
+ b.do_something();
+ example c;
+ c = a;
+ c.do_something();
+ return 0;
+}
diff --git a/gccspeed.gif b/gccspeed.gif
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index 0000000..d78c06b
Binary files /dev/null and b/gccspeed.gif differ
diff --git a/include/boost/detail/atomic_count.hpp b/include/boost/detail/atomic_count.hpp
new file mode 100644
index 0000000..5411c7a
--- /dev/null
+++ b/include/boost/detail/atomic_count.hpp
@@ -0,0 +1,21 @@
+#ifndef BOOST_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
+#define BOOST_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/atomic_count.hpp - thread/SMP safe reference counter
+//
+// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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
+
+#include
+
+#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
diff --git a/include/boost/detail/lightweight_mutex.hpp b/include/boost/detail/lightweight_mutex.hpp
new file mode 100644
index 0000000..b7a7f6d
--- /dev/null
+++ b/include/boost/detail/lightweight_mutex.hpp
@@ -0,0 +1,22 @@
+#ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
+#define BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/lightweight_mutex.hpp - lightweight mutex
+//
+// Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.
+//
+// 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
+//
+
+#include
+
+#endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
diff --git a/include/boost/detail/sp_typeinfo.hpp b/include/boost/detail/sp_typeinfo.hpp
new file mode 100644
index 0000000..e78c943
--- /dev/null
+++ b/include/boost/detail/sp_typeinfo.hpp
@@ -0,0 +1,83 @@
+#ifndef BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
+#define BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// detail/sp_typeinfo.hpp
+//
+// Copyright 2007 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)
+
+#include
+
+#if defined( BOOST_NO_TYPEID )
+
+namespace boost
+{
+
+namespace detail
+{
+
+typedef void* sp_typeinfo;
+
+template struct sp_typeid_
+{
+ static char v_;
+};
+
+template char sp_typeid_< T >::v_;
+
+template struct sp_typeid_< T const >: sp_typeid_< T >
+{
+};
+
+template struct sp_typeid_< T volatile >: sp_typeid_< T >
+{
+};
+
+template struct sp_typeid_< T const volatile >: sp_typeid_< T >
+{
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_SP_TYPEID(T) (&boost::detail::sp_typeid_::v_)
+
+#else
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if defined( BOOST_NO_STD_TYPEINFO )
+
+typedef ::type_info sp_typeinfo;
+
+#else
+
+typedef std::type_info sp_typeinfo;
+
+#endif
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_SP_TYPEID(T) typeid(T)
+
+#endif
+
+#endif // #ifndef BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
diff --git a/include/boost/enable_shared_from_this.hpp b/include/boost/enable_shared_from_this.hpp
new file mode 100644
index 0000000..b1bb63d
--- /dev/null
+++ b/include/boost/enable_shared_from_this.hpp
@@ -0,0 +1,18 @@
+#ifndef BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
+#define BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
+
+//
+// enable_shared_from_this.hpp
+//
+// Copyright (c) 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/enable_shared_from_this.html
+//
+
+#include
+
+#endif // #ifndef BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
diff --git a/include/boost/get_pointer.hpp b/include/boost/get_pointer.hpp
new file mode 100644
index 0000000..a0cd5c0
--- /dev/null
+++ b/include/boost/get_pointer.hpp
@@ -0,0 +1,33 @@
+// Copyright Peter Dimov and David Abrahams 2002.
+// 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)
+#ifndef GET_POINTER_DWA20021219_HPP
+# define GET_POINTER_DWA20021219_HPP
+
+// In order to avoid circular dependencies with Boost.TR1
+// we make sure that our include of doesn't try to
+// pull in the TR1 headers: that's why we use this header
+// rather than including directly:
+# include // std::auto_ptr
+
+namespace boost {
+
+// get_pointer(p) extracts a ->* capable pointer from p
+
+template T * get_pointer(T * p)
+{
+ return p;
+}
+
+// get_pointer(shared_ptr const & p) has been moved to shared_ptr.hpp
+
+template T * get_pointer(std::auto_ptr const& p)
+{
+ return p.get();
+}
+
+
+} // namespace boost
+
+#endif // GET_POINTER_DWA20021219_HPP
diff --git a/include/boost/intrusive_ptr.hpp b/include/boost/intrusive_ptr.hpp
new file mode 100644
index 0000000..63036dc
--- /dev/null
+++ b/include/boost/intrusive_ptr.hpp
@@ -0,0 +1,18 @@
+#ifndef BOOST_INTRUSIVE_PTR_HPP_INCLUDED
+#define BOOST_INTRUSIVE_PTR_HPP_INCLUDED
+
+//
+// intrusive_ptr.hpp
+//
+// 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
+//
+// See http://www.boost.org/libs/smart_ptr/intrusive_ptr.html for documentation.
+//
+
+#include
+
+#endif // #ifndef BOOST_INTRUSIVE_PTR_HPP_INCLUDED
diff --git a/include/boost/make_shared.hpp b/include/boost/make_shared.hpp
new file mode 100644
index 0000000..c04938f
--- /dev/null
+++ b/include/boost/make_shared.hpp
@@ -0,0 +1,17 @@
+#ifndef BOOST_MAKE_SHARED_HPP_INCLUDED
+#define BOOST_MAKE_SHARED_HPP_INCLUDED
+
+// make_shared.hpp
+//
+// Copyright (c) 2007, 2008 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
+//
+// See http://www.boost.org/libs/smart_ptr/make_shared.html
+// for documentation.
+
+#include
+
+#endif // #ifndef BOOST_MAKE_SHARED_HPP_INCLUDED
diff --git a/include/boost/memory_order.hpp b/include/boost/memory_order.hpp
new file mode 100644
index 0000000..2524e8a
--- /dev/null
+++ b/include/boost/memory_order.hpp
@@ -0,0 +1,35 @@
+#ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
+#define BOOST_MEMORY_ORDER_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// boost/memory_order.hpp
+//
+// Defines enum boost::memory_order per the C++0x working draft
+//
+// Copyright (c) 2008 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)
+
+
+namespace boost
+{
+
+enum memory_order
+{
+ memory_order_relaxed = 0,
+ memory_order_acquire = 1,
+ memory_order_release = 2,
+ memory_order_acq_rel = 3, // acquire | release
+ memory_order_seq_cst = 7 // acq_rel | 4
+};
+
+} // namespace boost
+
+#endif // #ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
diff --git a/include/boost/pointer_cast.hpp b/include/boost/pointer_cast.hpp
new file mode 100644
index 0000000..6e532eb
--- /dev/null
+++ b/include/boost/pointer_cast.hpp
@@ -0,0 +1,45 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005.
+// 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)
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_POINTER_CAST_HPP
+#define BOOST_POINTER_CAST_HPP
+
+namespace boost {
+
+//static_pointer_cast overload for raw pointers
+template
+inline T* static_pointer_cast(U *ptr)
+{
+ return static_cast(ptr);
+}
+
+//dynamic_pointer_cast overload for raw pointers
+template
+inline T* dynamic_pointer_cast(U *ptr)
+{
+ return dynamic_cast(ptr);
+}
+
+//const_pointer_cast overload for raw pointers
+template
+inline T* const_pointer_cast(U *ptr)
+{
+ return const_cast(ptr);
+}
+
+//reinterpret_pointer_cast overload for raw pointers
+template
+inline T* reinterpret_pointer_cast(U *ptr)
+{
+ return reinterpret_cast(ptr);
+}
+
+} // namespace boost
+
+#endif //BOOST_POINTER_CAST_HPP
diff --git a/include/boost/pointer_to_other.hpp b/include/boost/pointer_to_other.hpp
new file mode 100644
index 0000000..8516734
--- /dev/null
+++ b/include/boost/pointer_to_other.hpp
@@ -0,0 +1,55 @@
+#ifndef BOOST_POINTER_TO_OTHER_HPP_INCLUDED
+#define BOOST_POINTER_TO_OTHER_HPP_INCLUDED
+
+//
+// pointer_to_other.hpp
+//
+// (C) Copyright Ion Gaztanaga 2005.
+// Copyright (c) 2005 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)
+//
+// See http://www.boost.org/libs/smart_ptr/pointer_to_other.html
+//
+
+namespace boost
+{
+
+// Defines the same pointer type (raw or smart) to another pointee type
+
+template
+struct pointer_to_other;
+
+template class Sp>
+struct pointer_to_other< Sp, U >
+{
+ typedef Sp type;
+};
+
+template class Sp>
+struct pointer_to_other< Sp, U >
+{
+ typedef Sp type;
+};
+
+template class Sp>
+struct pointer_to_other< Sp, U >
+{
+ typedef Sp type;
+};
+
+template
+struct pointer_to_other< T*, U >
+{
+ typedef U* type;
+};
+
+} // namespace boost
+
+#endif // #ifndef BOOST_POINTER_TO_OTHER_HPP_INCLUDED
diff --git a/include/boost/scoped_array.hpp b/include/boost/scoped_array.hpp
new file mode 100644
index 0000000..c02fa31
--- /dev/null
+++ b/include/boost/scoped_array.hpp
@@ -0,0 +1,16 @@
+#ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED
+#define BOOST_SCOPED_ARRAY_HPP_INCLUDED
+
+// (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_array.htm
+//
+
+#include
+
+#endif // #ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED
diff --git a/include/boost/scoped_ptr.hpp b/include/boost/scoped_ptr.hpp
new file mode 100644
index 0000000..cb916da
--- /dev/null
+++ b/include/boost/scoped_ptr.hpp
@@ -0,0 +1,16 @@
+#ifndef BOOST_SCOPED_PTR_HPP_INCLUDED
+#define BOOST_SCOPED_PTR_HPP_INCLUDED
+
+// (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
+//
+
+#include
+
+#endif // #ifndef BOOST_SCOPED_PTR_HPP_INCLUDED
diff --git a/include/boost/shared_array.hpp b/include/boost/shared_array.hpp
new file mode 100644
index 0000000..0700ce4
--- /dev/null
+++ b/include/boost/shared_array.hpp
@@ -0,0 +1,19 @@
+#ifndef BOOST_SHARED_ARRAY_HPP_INCLUDED
+#define BOOST_SHARED_ARRAY_HPP_INCLUDED
+
+//
+// shared_array.hpp
+//
+// (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)
+//
+// See http://www.boost.org/libs/smart_ptr/shared_array.htm for documentation.
+//
+
+#include
+
+#endif // #ifndef BOOST_SHARED_ARRAY_HPP_INCLUDED
diff --git a/include/boost/shared_ptr.hpp b/include/boost/shared_ptr.hpp
new file mode 100644
index 0000000..d31978c
--- /dev/null
+++ b/include/boost/shared_ptr.hpp
@@ -0,0 +1,19 @@
+#ifndef BOOST_SHARED_PTR_HPP_INCLUDED
+#define BOOST_SHARED_PTR_HPP_INCLUDED
+
+//
+// shared_ptr.hpp
+//
+// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
+// Copyright (c) 2001-2008 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)
+//
+// See http://www.boost.org/libs/smart_ptr/shared_ptr.htm for documentation.
+//
+
+#include
+
+#endif // #ifndef BOOST_SHARED_PTR_HPP_INCLUDED
diff --git a/include/boost/smart_ptr.hpp b/include/boost/smart_ptr.hpp
new file mode 100644
index 0000000..98e0894
--- /dev/null
+++ b/include/boost/smart_ptr.hpp
@@ -0,0 +1,25 @@
+//
+// smart_ptr.hpp
+//
+// For convenience, this header includes the rest of the smart
+// pointer library headers.
+//
+// Copyright (c) 2003 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/smart_ptr.htm
+//
+
+#include
+
+#include
+#include
+#include
+#include
+
+#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
+# include
+# include
+# include
+#endif
diff --git a/include/boost/smart_ptr/bad_weak_ptr.hpp b/include/boost/smart_ptr/bad_weak_ptr.hpp
new file mode 100644
index 0000000..3e0a1b7
--- /dev/null
+++ b/include/boost/smart_ptr/bad_weak_ptr.hpp
@@ -0,0 +1,59 @@
+#ifndef BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
+#define BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/smart_ptr/bad_weak_ptr.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+
+#include
+
+#ifdef __BORLANDC__
+# pragma warn -8026 // Functions with excep. spec. are not expanded inline
+#endif
+
+namespace boost
+{
+
+// The standard library that comes with Borland C++ 5.5.1, 5.6.4
+// defines std::exception and its members as having C calling
+// convention (-pc). When the definition of bad_weak_ptr
+// is compiled with -ps, the compiler issues an error.
+// Hence, the temporary #pragma option -pc below.
+
+#if defined(__BORLANDC__) && __BORLANDC__ <= 0x564
+# pragma option push -pc
+#endif
+
+class bad_weak_ptr: public std::exception
+{
+public:
+
+ virtual char const * what() const throw()
+ {
+ return "tr1::bad_weak_ptr";
+ }
+};
+
+#if defined(__BORLANDC__) && __BORLANDC__ <= 0x564
+# pragma option pop
+#endif
+
+} // namespace boost
+
+#ifdef __BORLANDC__
+# pragma warn .8026 // Functions with excep. spec. are not expanded inline
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count.hpp b/include/boost/smart_ptr/detail/atomic_count.hpp
new file mode 100644
index 0000000..cc44ac2
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count.hpp
@@ -0,0 +1,119 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/atomic_count.hpp - thread/SMP safe reference counter
+//
+// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+// typedef boost::detail::atomic_count;
+//
+// atomic_count a(n);
+//
+// (n is convertible to long)
+//
+// Effects: Constructs an atomic_count with an initial value of n
+//
+// a;
+//
+// Returns: (long) the current value of a
+//
+// ++a;
+//
+// Effects: Atomically increments the value of a
+// Returns: (long) the new value of a
+//
+// --a;
+//
+// Effects: Atomically decrements the value of a
+// Returns: (long) the new value of a
+//
+// Important note: when --a returns zero, it must act as a
+// read memory barrier (RMB); i.e. the calling thread must
+// have a synchronized view of the memory
+//
+// On Intel IA-32 (x86) memory is always synchronized, so this
+// is not a problem.
+//
+// On many architectures the atomic instructions already act as
+// a memory barrier.
+//
+// This property is necessary for proper reference counting, since
+// a thread can update the contents of a shared object, then
+// release its reference, and another thread may immediately
+// release the last reference causing object destruction.
+//
+// The destructor needs to have a synchronized view of the
+// object to perform proper cleanup.
+//
+// Original example by Alexander Terekhov:
+//
+// Given:
+//
+// - a mutable shared object OBJ;
+// - two threads THREAD1 and THREAD2 each holding
+// a private smart_ptr object pointing to that OBJ.
+//
+// t1: THREAD1 updates OBJ (thread-safe via some synchronization)
+// and a few cycles later (after "unlock") destroys smart_ptr;
+//
+// t2: THREAD2 destroys smart_ptr WITHOUT doing any synchronization
+// with respect to shared mutable object OBJ; OBJ destructors
+// are called driven by smart_ptr interface...
+//
+
+#include
+#include
+
+#ifndef BOOST_HAS_THREADS
+
+namespace boost
+{
+
+namespace detail
+{
+
+typedef long atomic_count;
+
+}
+
+}
+
+#elif defined(BOOST_AC_USE_PTHREADS)
+# include
+
+#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
+# include
+
+#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+# include
+
+#elif defined( BOOST_SP_HAS_SYNC )
+# include
+
+#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
+# include
+
+#elif defined(BOOST_HAS_PTHREADS)
+
+# define BOOST_AC_USE_PTHREADS
+# include
+
+#else
+
+// Use #define BOOST_DISABLE_THREADS to avoid the error
+#error Unrecognized threading platform
+
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count_gcc.hpp b/include/boost/smart_ptr/detail/atomic_count_gcc.hpp
new file mode 100644
index 0000000..54807e9
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count_gcc.hpp
@@ -0,0 +1,72 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
+
+//
+// boost/detail/atomic_count_gcc.hpp
+//
+// atomic_count for GNU libstdc++ v3
+//
+// http://gcc.gnu.org/onlinedocs/porting/Thread-safety.html
+//
+// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+// Copyright (c) 2002 Lars Gullik Bjønnes
+// Copyright 2003-2005 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)
+//
+
+#if __GNUC__ * 100 + __GNUC_MINOR__ >= 402
+# include
+#else
+# include
+#endif
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if defined(__GLIBCXX__) // g++ 3.4+
+
+using __gnu_cxx::__atomic_add;
+using __gnu_cxx::__exchange_and_add;
+
+#endif
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( long v ) : value_( v ) {}
+
+ long operator++()
+ {
+ return __exchange_and_add( &value_, +1 ) + 1;
+ }
+
+ long operator--()
+ {
+ return __exchange_and_add( &value_, -1 ) - 1;
+ }
+
+ operator long() const
+ {
+ return __exchange_and_add( &value_, 0 );
+ }
+
+private:
+
+ atomic_count(atomic_count const &);
+ atomic_count & operator=(atomic_count const &);
+
+ mutable _Atomic_word value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count_gcc_x86.hpp b/include/boost/smart_ptr/detail/atomic_count_gcc_x86.hpp
new file mode 100644
index 0000000..5c44d7c
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count_gcc_x86.hpp
@@ -0,0 +1,77 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
+
+//
+// boost/detail/atomic_count_gcc_x86.hpp
+//
+// atomic_count for g++ on 486+/AMD64
+//
+// Copyright 2007 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)
+//
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( long v ) : value_( static_cast< int >( v ) ) {}
+
+ long operator++()
+ {
+ return atomic_exchange_and_add( &value_, +1 ) + 1;
+ }
+
+ long operator--()
+ {
+ return atomic_exchange_and_add( &value_, -1 ) - 1;
+ }
+
+ operator long() const
+ {
+ return atomic_exchange_and_add( &value_, 0 );
+ }
+
+private:
+
+ atomic_count(atomic_count const &);
+ atomic_count & operator=(atomic_count const &);
+
+ mutable int value_;
+
+private:
+
+ static int atomic_exchange_and_add( int * pw, int dv )
+ {
+ // int r = *pw;
+ // *pw += dv;
+ // return r;
+
+ int r;
+
+ __asm__ __volatile__
+ (
+ "lock\n\t"
+ "xadd %1, %0":
+ "+m"( *pw ), "=r"( r ): // outputs (%0, %1)
+ "1"( dv ): // inputs (%2 == %1)
+ "memory", "cc" // clobbers
+ );
+
+ return r;
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count_pthreads.hpp b/include/boost/smart_ptr/detail/atomic_count_pthreads.hpp
new file mode 100644
index 0000000..05f7867
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count_pthreads.hpp
@@ -0,0 +1,96 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
+
+//
+// boost/detail/atomic_count_pthreads.hpp
+//
+// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+
+#include
+
+//
+// The generic pthread_mutex-based implementation sometimes leads to
+// inefficiencies. Example: a class with two atomic_count members
+// can get away with a single mutex.
+//
+// Users can detect this situation by checking BOOST_AC_USE_PTHREADS.
+//
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+private:
+
+ class scoped_lock
+ {
+ public:
+
+ scoped_lock(pthread_mutex_t & m): m_(m)
+ {
+ pthread_mutex_lock(&m_);
+ }
+
+ ~scoped_lock()
+ {
+ pthread_mutex_unlock(&m_);
+ }
+
+ private:
+
+ pthread_mutex_t & m_;
+ };
+
+public:
+
+ explicit atomic_count(long v): value_(v)
+ {
+ pthread_mutex_init(&mutex_, 0);
+ }
+
+ ~atomic_count()
+ {
+ pthread_mutex_destroy(&mutex_);
+ }
+
+ long operator++()
+ {
+ scoped_lock lock(mutex_);
+ return ++value_;
+ }
+
+ long operator--()
+ {
+ scoped_lock lock(mutex_);
+ return --value_;
+ }
+
+ operator long() const
+ {
+ scoped_lock lock(mutex_);
+ return value_;
+ }
+
+private:
+
+ atomic_count(atomic_count const &);
+ atomic_count & operator=(atomic_count const &);
+
+ mutable pthread_mutex_t mutex_;
+ long value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count_solaris.hpp b/include/boost/smart_ptr/detail/atomic_count_solaris.hpp
new file mode 100644
index 0000000..a13bcfb
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count_solaris.hpp
@@ -0,0 +1,59 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
+
+//
+// boost/detail/atomic_count_solaris.hpp
+// based on: boost/detail/atomic_count_win32.hpp
+//
+// Copyright (c) 2001-2005 Peter Dimov
+// Copyright (c) 2006 Michael van der Westhuizen
+//
+// 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)
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( uint32_t v ): value_( v )
+ {
+ }
+
+ long operator++()
+ {
+ return atomic_inc_32_nv( &value_ );
+ }
+
+ long operator--()
+ {
+ return atomic_dec_32_nv( &value_ );
+ }
+
+ operator uint32_t() const
+ {
+ return static_cast( value_ );
+ }
+
+private:
+
+ atomic_count( atomic_count const & );
+ atomic_count & operator=( atomic_count const & );
+
+ uint32_t value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count_sync.hpp b/include/boost/smart_ptr/detail/atomic_count_sync.hpp
new file mode 100644
index 0000000..b6359b5
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count_sync.hpp
@@ -0,0 +1,61 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
+
+//
+// boost/detail/atomic_count_sync.hpp
+//
+// atomic_count for g++ 4.1+
+//
+// http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Atomic-Builtins.html
+//
+// Copyright 2007 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)
+//
+
+#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
+# include
+#endif
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( long v ) : value_( v ) {}
+
+ long operator++()
+ {
+ return __sync_add_and_fetch( &value_, 1 );
+ }
+
+ long operator--()
+ {
+ return __sync_add_and_fetch( &value_, -1 );
+ }
+
+ operator long() const
+ {
+ return __sync_fetch_and_add( &value_, 0 );
+ }
+
+private:
+
+ atomic_count(atomic_count const &);
+ atomic_count & operator=(atomic_count const &);
+
+ mutable long value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/atomic_count_win32.hpp b/include/boost/smart_ptr/detail/atomic_count_win32.hpp
new file mode 100644
index 0000000..60a0569
--- /dev/null
+++ b/include/boost/smart_ptr/detail/atomic_count_win32.hpp
@@ -0,0 +1,63 @@
+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/atomic_count_win32.hpp
+//
+// Copyright (c) 2001-2005 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)
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+ explicit atomic_count( long v ): value_( v )
+ {
+ }
+
+ long operator++()
+ {
+ return BOOST_INTERLOCKED_INCREMENT( &value_ );
+ }
+
+ long operator--()
+ {
+ return BOOST_INTERLOCKED_DECREMENT( &value_ );
+ }
+
+ operator long() const
+ {
+ return static_cast( value_ );
+ }
+
+private:
+
+ atomic_count( atomic_count const & );
+ atomic_count & operator=( atomic_count const & );
+
+ long value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/lightweight_mutex.hpp b/include/boost/smart_ptr/detail/lightweight_mutex.hpp
new file mode 100644
index 0000000..d46b193
--- /dev/null
+++ b/include/boost/smart_ptr/detail/lightweight_mutex.hpp
@@ -0,0 +1,42 @@
+#ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/lightweight_mutex.hpp - lightweight mutex
+//
+// Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+// typedef boost::detail::lightweight_mutex;
+//
+// boost::detail::lightweight_mutex is a header-only implementation of
+// a subset of the Mutex concept requirements:
+//
+// http://www.boost.org/doc/html/threads/concepts.html#threads.concepts.Mutex
+//
+// It maps to a CRITICAL_SECTION on Windows or a pthread_mutex on POSIX.
+//
+
+#include
+
+#if !defined(BOOST_HAS_THREADS)
+# include
+#elif defined(BOOST_HAS_PTHREADS)
+# include
+#elif defined(BOOST_HAS_WINTHREADS) || defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+# include
+#else
+// Use #define BOOST_DISABLE_THREADS to avoid the error
+# error Unrecognized threading platform
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/lwm_nop.hpp b/include/boost/smart_ptr/detail/lwm_nop.hpp
new file mode 100644
index 0000000..521a88e
--- /dev/null
+++ b/include/boost/smart_ptr/detail/lwm_nop.hpp
@@ -0,0 +1,37 @@
+#ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/lwm_nop.hpp
+//
+// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+
+namespace boost
+{
+
+namespace detail
+{
+
+class lightweight_mutex
+{
+public:
+
+ typedef lightweight_mutex scoped_lock;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/lwm_pthreads.hpp b/include/boost/smart_ptr/detail/lwm_pthreads.hpp
new file mode 100644
index 0000000..fc20dbb
--- /dev/null
+++ b/include/boost/smart_ptr/detail/lwm_pthreads.hpp
@@ -0,0 +1,86 @@
+#ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/lwm_pthreads.hpp
+//
+// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class lightweight_mutex
+{
+private:
+
+ pthread_mutex_t m_;
+
+ lightweight_mutex(lightweight_mutex const &);
+ lightweight_mutex & operator=(lightweight_mutex const &);
+
+public:
+
+ lightweight_mutex()
+ {
+
+// HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
+
+#if defined(__hpux) && defined(_DECTHREADS_)
+ pthread_mutex_init(&m_, pthread_mutexattr_default);
+#else
+ pthread_mutex_init(&m_, 0);
+#endif
+ }
+
+ ~lightweight_mutex()
+ {
+ pthread_mutex_destroy(&m_);
+ }
+
+ class scoped_lock;
+ friend class scoped_lock;
+
+ class scoped_lock
+ {
+ private:
+
+ pthread_mutex_t & m_;
+
+ scoped_lock(scoped_lock const &);
+ scoped_lock & operator=(scoped_lock const &);
+
+ public:
+
+ scoped_lock(lightweight_mutex & m): m_(m.m_)
+ {
+ pthread_mutex_lock(&m_);
+ }
+
+ ~scoped_lock()
+ {
+ pthread_mutex_unlock(&m_);
+ }
+ };
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/lwm_win32_cs.hpp b/include/boost/smart_ptr/detail/lwm_win32_cs.hpp
new file mode 100644
index 0000000..00477e4
--- /dev/null
+++ b/include/boost/smart_ptr/detail/lwm_win32_cs.hpp
@@ -0,0 +1,108 @@
+#ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// boost/detail/lwm_win32_cs.hpp
+//
+// Copyright (c) 2002, 2003 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)
+//
+
+#ifdef BOOST_USE_WINDOWS_H
+# include
+#endif
+
+namespace boost
+{
+
+namespace detail
+{
+
+#ifndef BOOST_USE_WINDOWS_H
+
+struct critical_section
+{
+ struct critical_section_debug * DebugInfo;
+ long LockCount;
+ long RecursionCount;
+ void * OwningThread;
+ void * LockSemaphore;
+#if defined(_WIN64)
+ unsigned __int64 SpinCount;
+#else
+ unsigned long SpinCount;
+#endif
+};
+
+extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(critical_section *);
+extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(critical_section *);
+extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(critical_section *);
+extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(critical_section *);
+
+#else
+
+typedef ::CRITICAL_SECTION critical_section;
+
+#endif // #ifndef BOOST_USE_WINDOWS_H
+
+class lightweight_mutex
+{
+private:
+
+ critical_section cs_;
+
+ lightweight_mutex(lightweight_mutex const &);
+ lightweight_mutex & operator=(lightweight_mutex const &);
+
+public:
+
+ lightweight_mutex()
+ {
+ InitializeCriticalSection(&cs_);
+ }
+
+ ~lightweight_mutex()
+ {
+ DeleteCriticalSection(&cs_);
+ }
+
+ class scoped_lock;
+ friend class scoped_lock;
+
+ class scoped_lock
+ {
+ private:
+
+ lightweight_mutex & m_;
+
+ scoped_lock(scoped_lock const &);
+ scoped_lock & operator=(scoped_lock const &);
+
+ public:
+
+ explicit scoped_lock(lightweight_mutex & m): m_(m)
+ {
+ EnterCriticalSection(&m_.cs_);
+ }
+
+ ~scoped_lock()
+ {
+ LeaveCriticalSection(&m_.cs_);
+ }
+ };
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/operator_bool.hpp b/include/boost/smart_ptr/detail/operator_bool.hpp
new file mode 100644
index 0000000..842a05d
--- /dev/null
+++ b/include/boost/smart_ptr/detail/operator_bool.hpp
@@ -0,0 +1,56 @@
+// This header intentionally has no include guards.
+//
+// Copyright (c) 2001-2009 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
+
+#if ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, < 0x570) ) || defined(__CINT__)
+
+ operator bool () const
+ {
+ return px != 0;
+ }
+
+#elif defined( _MANAGED )
+
+ static void unspecified_bool( this_type*** )
+ {
+ }
+
+ typedef void (*unspecified_bool_type)( this_type*** );
+
+ operator unspecified_bool_type() const // never throws
+ {
+ return px == 0? 0: unspecified_bool;
+ }
+
+#elif \
+ ( defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, < 0x3200) ) || \
+ ( defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ < 304) ) || \
+ ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590) )
+
+ typedef T * (this_type::*unspecified_bool_type)() const;
+
+ operator unspecified_bool_type() const // never throws
+ {
+ return px == 0? 0: &this_type::get;
+ }
+
+#else
+
+ typedef T * this_type::*unspecified_bool_type;
+
+ operator unspecified_bool_type() const // never throws
+ {
+ return px == 0? 0: &this_type::px;
+ }
+
+#endif
+
+ // operator! is redundant, but some compilers need it
+ bool operator! () const // never throws
+ {
+ return px == 0;
+ }
diff --git a/include/boost/smart_ptr/detail/quick_allocator.hpp b/include/boost/smart_ptr/detail/quick_allocator.hpp
new file mode 100644
index 0000000..6d136f8
--- /dev/null
+++ b/include/boost/smart_ptr/detail/quick_allocator.hpp
@@ -0,0 +1,198 @@
+#ifndef BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/quick_allocator.hpp
+//
+// Copyright (c) 2003 David Abrahams
+// Copyright (c) 2003 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)
+//
+
+#include
+
+#include
+#include
+#include
+
+#include // ::operator new, ::operator delete
+#include // std::size_t
+
+namespace boost
+{
+
+namespace detail
+{
+
+template union freeblock
+{
+ typedef typename boost::type_with_alignment::type aligner_type;
+ aligner_type aligner;
+ char bytes[size];
+ freeblock * next;
+};
+
+template struct allocator_impl
+{
+ typedef freeblock block;
+
+ // It may seem odd to use such small pages.
+ //
+ // However, on a typical Windows implementation that uses
+ // the OS allocator, "normal size" pages interact with the
+ // "ordinary" operator new, slowing it down dramatically.
+ //
+ // 512 byte pages are handled by the small object allocator,
+ // and don't interfere with ::new.
+ //
+ // The other alternative is to use much bigger pages (1M.)
+ //
+ // It is surprisingly easy to hit pathological behavior by
+ // varying the page size. g++ 2.96 on Red Hat Linux 7.2,
+ // for example, passionately dislikes 496. 512 seems OK.
+
+#if defined(BOOST_QA_PAGE_SIZE)
+
+ enum { items_per_page = BOOST_QA_PAGE_SIZE / size };
+
+#else
+
+ enum { items_per_page = 512 / size }; // 1048560 / size
+
+#endif
+
+#ifdef BOOST_HAS_THREADS
+
+ static lightweight_mutex & mutex()
+ {
+ static lightweight_mutex m;
+ return m;
+ }
+
+ static lightweight_mutex * mutex_init;
+
+#endif
+
+ static block * free;
+ static block * page;
+ static unsigned last;
+
+ static inline void * alloc()
+ {
+#ifdef BOOST_HAS_THREADS
+ lightweight_mutex::scoped_lock lock( mutex() );
+#endif
+ if(block * x = free)
+ {
+ free = x->next;
+ return x;
+ }
+ else
+ {
+ if(last == items_per_page)
+ {
+ // "Listen to me carefully: there is no memory leak"
+ // -- Scott Meyers, Eff C++ 2nd Ed Item 10
+ page = ::new block[items_per_page];
+ last = 0;
+ }
+
+ return &page[last++];
+ }
+ }
+
+ static inline void * alloc(std::size_t n)
+ {
+ if(n != size) // class-specific new called for a derived object
+ {
+ return ::operator new(n);
+ }
+ else
+ {
+#ifdef BOOST_HAS_THREADS
+ lightweight_mutex::scoped_lock lock( mutex() );
+#endif
+ if(block * x = free)
+ {
+ free = x->next;
+ return x;
+ }
+ else
+ {
+ if(last == items_per_page)
+ {
+ page = ::new block[items_per_page];
+ last = 0;
+ }
+
+ return &page[last++];
+ }
+ }
+ }
+
+ static inline void dealloc(void * pv)
+ {
+ if(pv != 0) // 18.4.1.1/13
+ {
+#ifdef BOOST_HAS_THREADS
+ lightweight_mutex::scoped_lock lock( mutex() );
+#endif
+ block * pb = static_cast(pv);
+ pb->next = free;
+ free = pb;
+ }
+ }
+
+ static inline void dealloc(void * pv, std::size_t n)
+ {
+ if(n != size) // class-specific delete called for a derived object
+ {
+ ::operator delete(pv);
+ }
+ else if(pv != 0) // 18.4.1.1/13
+ {
+#ifdef BOOST_HAS_THREADS
+ lightweight_mutex::scoped_lock lock( mutex() );
+#endif
+ block * pb = static_cast(pv);
+ pb->next = free;
+ free = pb;
+ }
+ }
+};
+
+#ifdef BOOST_HAS_THREADS
+
+template
+ lightweight_mutex * allocator_impl::mutex_init = &allocator_impl::mutex();
+
+#endif
+
+template
+ freeblock * allocator_impl::free = 0;
+
+template
+ freeblock * allocator_impl::page = 0;
+
+template
+ unsigned allocator_impl::last = allocator_impl::items_per_page;
+
+template
+struct quick_allocator: public allocator_impl< sizeof(T), boost::alignment_of::value >
+{
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/shared_array_nmt.hpp b/include/boost/smart_ptr/detail/shared_array_nmt.hpp
new file mode 100644
index 0000000..450c9bc
--- /dev/null
+++ b/include/boost/smart_ptr/detail/shared_array_nmt.hpp
@@ -0,0 +1,151 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
+
+//
+// detail/shared_array_nmt.hpp - shared_array.hpp without member templates
+//
+// (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)
+//
+// See http://www.boost.org/libs/smart_ptr/shared_array.htm for documentation.
+//
+
+#include
+#include
+#include
+#include
+
+#include // for std::ptrdiff_t
+#include // for std::swap
+#include // for std::less
+#include // for std::bad_alloc
+
+namespace boost
+{
+
+template class shared_array
+{
+private:
+
+ typedef detail::atomic_count count_type;
+
+public:
+
+ typedef T element_type;
+
+ explicit shared_array(T * p = 0): px(p)
+ {
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try // prevent leak if new throws
+ {
+ pn = new count_type(1);
+ }
+ catch(...)
+ {
+ boost::checked_array_delete(p);
+ throw;
+ }
+
+#else
+
+ pn = new count_type(1);
+
+ if(pn == 0)
+ {
+ boost::checked_array_delete(p);
+ boost::throw_exception(std::bad_alloc());
+ }
+
+#endif
+ }
+
+ ~shared_array()
+ {
+ if(--*pn == 0)
+ {
+ boost::checked_array_delete(px);
+ delete pn;
+ }
+ }
+
+ shared_array(shared_array const & r) : px(r.px) // never throws
+ {
+ pn = r.pn;
+ ++*pn;
+ }
+
+ shared_array & operator=(shared_array const & r)
+ {
+ shared_array(r).swap(*this);
+ return *this;
+ }
+
+ void reset(T * p = 0)
+ {
+ BOOST_ASSERT(p == 0 || p != px);
+ shared_array(p).swap(*this);
+ }
+
+ T * get() const // never throws
+ {
+ return px;
+ }
+
+ T & operator[](std::ptrdiff_t i) const // never throws
+ {
+ BOOST_ASSERT(px != 0);
+ BOOST_ASSERT(i >= 0);
+ return px[i];
+ }
+
+ long use_count() const // never throws
+ {
+ return *pn;
+ }
+
+ bool unique() const // never throws
+ {
+ return *pn == 1;
+ }
+
+ void swap(shared_array & other) // never throws
+ {
+ std::swap(px, other.px);
+ std::swap(pn, other.pn);
+ }
+
+private:
+
+ T * px; // contained pointer
+ count_type * pn; // ptr to reference counter
+
+}; // shared_array
+
+template inline bool operator==(shared_array const & a, shared_array const & b)
+{
+ return a.get() == b.get();
+}
+
+template inline bool operator!=(shared_array const & a, shared_array const & b)
+{
+ return a.get() != b.get();
+}
+
+template inline bool operator<(shared_array const & a, shared_array const & b)
+{
+ return std::less()(a.get(), b.get());
+}
+
+template void swap(shared_array & a, shared_array & b)
+{
+ a.swap(b);
+}
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/shared_count.hpp b/include/boost/smart_ptr/detail/shared_count.hpp
new file mode 100644
index 0000000..4943e37
--- /dev/null
+++ b/include/boost/smart_ptr/detail/shared_count.hpp
@@ -0,0 +1,444 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/shared_count.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+
+#ifdef __BORLANDC__
+# pragma warn -8027 // Functions containing try are not expanded inline
+#endif
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+// In order to avoid circular dependencies with Boost.TR1
+// we make sure that our include of doesn't try to
+// pull in the TR1 headers: that's why we use this header
+// rather than including directly:
+#include // std::auto_ptr
+#include // std::less
+#include // std::bad_alloc
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+
+int const shared_count_id = 0x2C35F101;
+int const weak_count_id = 0x298C38A4;
+
+#endif
+
+struct sp_nothrow_tag {};
+
+class weak_count;
+
+class shared_count
+{
+private:
+
+ sp_counted_base * pi_;
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ int id_;
+#endif
+
+ friend class weak_count;
+
+public:
+
+ shared_count(): pi_(0) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ }
+
+ template explicit shared_count( Y * p ): pi_( 0 )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try
+ {
+ pi_ = new sp_counted_impl_p( p );
+ }
+ catch(...)
+ {
+ boost::checked_delete( p );
+ throw;
+ }
+
+#else
+
+ pi_ = new sp_counted_impl_p( p );
+
+ if( pi_ == 0 )
+ {
+ boost::checked_delete( p );
+ boost::throw_exception( std::bad_alloc() );
+ }
+
+#endif
+ }
+
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )
+ template shared_count( Y * p, D d ): pi_(0)
+#else
+ template shared_count( P p, D d ): pi_(0)
+#endif
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )
+ typedef Y* P;
+#endif
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try
+ {
+ pi_ = new sp_counted_impl_pd(p, d);
+ }
+ catch(...)
+ {
+ d(p); // delete p
+ throw;
+ }
+
+#else
+
+ pi_ = new sp_counted_impl_pd(p, d);
+
+ if(pi_ == 0)
+ {
+ d(p); // delete p
+ boost::throw_exception(std::bad_alloc());
+ }
+
+#endif
+ }
+
+ template shared_count( P p, D d, A a ): pi_( 0 )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ typedef sp_counted_impl_pda impl_type;
+ typedef typename A::template rebind< impl_type >::other A2;
+
+ A2 a2( a );
+
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try
+ {
+ pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
+ new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );
+ }
+ catch(...)
+ {
+ d( p );
+
+ if( pi_ != 0 )
+ {
+ a2.deallocate( static_cast< impl_type* >( pi_ ), 1 );
+ }
+
+ throw;
+ }
+
+#else
+
+ pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
+
+ if( pi_ != 0 )
+ {
+ new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );
+ }
+ else
+ {
+ d( p );
+ boost::throw_exception( std::bad_alloc() );
+ }
+
+#endif
+ }
+
+#ifndef BOOST_NO_AUTO_PTR
+
+ // auto_ptr is special cased to provide the strong guarantee
+
+ template
+ explicit shared_count( std::auto_ptr & r ): pi_( new sp_counted_impl_p( r.get() ) )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+#ifdef BOOST_NO_EXCEPTIONS
+
+ if( pi_ == 0 )
+ {
+ boost::throw_exception(std::bad_alloc());
+ }
+
+#endif
+
+ r.release();
+ }
+
+#endif
+
+ ~shared_count() // nothrow
+ {
+ if( pi_ != 0 ) pi_->release();
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ id_ = 0;
+#endif
+ }
+
+ shared_count(shared_count const & r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ if( pi_ != 0 ) pi_->add_ref_copy();
+ }
+
+#if defined( BOOST_HAS_RVALUE_REFS )
+
+ shared_count(shared_count && r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ r.pi_ = 0;
+ }
+
+#endif
+
+ explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0
+ shared_count( weak_count const & r, sp_nothrow_tag ); // constructs an empty *this when r.use_count() == 0
+
+ shared_count & operator= (shared_count const & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+
+ if( tmp != pi_ )
+ {
+ if( tmp != 0 ) tmp->add_ref_copy();
+ if( pi_ != 0 ) pi_->release();
+ pi_ = tmp;
+ }
+
+ return *this;
+ }
+
+ void swap(shared_count & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+ r.pi_ = pi_;
+ pi_ = tmp;
+ }
+
+ long use_count() const // nothrow
+ {
+ return pi_ != 0? pi_->use_count(): 0;
+ }
+
+ bool unique() const // nothrow
+ {
+ return use_count() == 1;
+ }
+
+ bool empty() const // nothrow
+ {
+ return pi_ == 0;
+ }
+
+ friend inline bool operator==(shared_count const & a, shared_count const & b)
+ {
+ return a.pi_ == b.pi_;
+ }
+
+ friend inline bool operator<(shared_count const & a, shared_count const & b)
+ {
+ return std::less()( a.pi_, b.pi_ );
+ }
+
+ void * get_deleter( sp_typeinfo const & ti ) const
+ {
+ return pi_? pi_->get_deleter( ti ): 0;
+ }
+};
+
+
+class weak_count
+{
+private:
+
+ sp_counted_base * pi_;
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ int id_;
+#endif
+
+ friend class shared_count;
+
+public:
+
+ weak_count(): pi_(0) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ }
+
+ weak_count(shared_count const & r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ if(pi_ != 0) pi_->weak_add_ref();
+ }
+
+ weak_count(weak_count const & r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ if(pi_ != 0) pi_->weak_add_ref();
+ }
+
+// Move support
+
+#if defined( BOOST_HAS_RVALUE_REFS )
+
+ weak_count(weak_count && r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ r.pi_ = 0;
+ }
+
+#endif
+
+ ~weak_count() // nothrow
+ {
+ if(pi_ != 0) pi_->weak_release();
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ id_ = 0;
+#endif
+ }
+
+ weak_count & operator= (shared_count const & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+
+ if( tmp != pi_ )
+ {
+ if(tmp != 0) tmp->weak_add_ref();
+ if(pi_ != 0) pi_->weak_release();
+ pi_ = tmp;
+ }
+
+ return *this;
+ }
+
+ weak_count & operator= (weak_count const & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+
+ if( tmp != pi_ )
+ {
+ if(tmp != 0) tmp->weak_add_ref();
+ if(pi_ != 0) pi_->weak_release();
+ pi_ = tmp;
+ }
+
+ return *this;
+ }
+
+ void swap(weak_count & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+ r.pi_ = pi_;
+ pi_ = tmp;
+ }
+
+ long use_count() const // nothrow
+ {
+ return pi_ != 0? pi_->use_count(): 0;
+ }
+
+ bool empty() const // nothrow
+ {
+ return pi_ == 0;
+ }
+
+ friend inline bool operator==(weak_count const & a, weak_count const & b)
+ {
+ return a.pi_ == b.pi_;
+ }
+
+ friend inline bool operator<(weak_count const & a, weak_count const & b)
+ {
+ return std::less()(a.pi_, b.pi_);
+ }
+};
+
+inline shared_count::shared_count( weak_count const & r ): pi_( r.pi_ )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+{
+ if( pi_ == 0 || !pi_->add_ref_lock() )
+ {
+ boost::throw_exception( boost::bad_weak_ptr() );
+ }
+}
+
+inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ): pi_( r.pi_ )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+{
+ if( pi_ != 0 && !pi_->add_ref_lock() )
+ {
+ pi_ = 0;
+ }
+}
+
+} // namespace detail
+
+} // namespace boost
+
+#ifdef __BORLANDC__
+# pragma warn .8027 // Functions containing try are not expanded inline
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/shared_ptr_nmt.hpp b/include/boost/smart_ptr/detail/shared_ptr_nmt.hpp
new file mode 100644
index 0000000..afc1ec0
--- /dev/null
+++ b/include/boost/smart_ptr/detail/shared_ptr_nmt.hpp
@@ -0,0 +1,182 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
+
+//
+// detail/shared_ptr_nmt.hpp - shared_ptr.hpp without member templates
+//
+// (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)
+//
+// See http://www.boost.org/libs/smart_ptr/shared_ptr.htm for documentation.
+//
+
+#include
+#include
+#include
+#include
+
+#ifndef BOOST_NO_AUTO_PTR
+# include // for std::auto_ptr
+#endif
+
+#include // for std::swap
+#include // for std::less
+#include // for std::bad_alloc
+
+namespace boost
+{
+
+template class shared_ptr
+{
+private:
+
+ typedef detail::atomic_count count_type;
+
+public:
+
+ typedef T element_type;
+ typedef T value_type;
+
+ explicit shared_ptr(T * p = 0): px(p)
+ {
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try // prevent leak if new throws
+ {
+ pn = new count_type(1);
+ }
+ catch(...)
+ {
+ boost::checked_delete(p);
+ throw;
+ }
+
+#else
+
+ pn = new count_type(1);
+
+ if(pn == 0)
+ {
+ boost::checked_delete(p);
+ boost::throw_exception(std::bad_alloc());
+ }
+
+#endif
+ }
+
+ ~shared_ptr()
+ {
+ if(--*pn == 0)
+ {
+ boost::checked_delete(px);
+ delete pn;
+ }
+ }
+
+ shared_ptr(shared_ptr const & r): px(r.px) // never throws
+ {
+ pn = r.pn;
+ ++*pn;
+ }
+
+ shared_ptr & operator=(shared_ptr const & r)
+ {
+ shared_ptr(r).swap(*this);
+ return *this;
+ }
+
+#ifndef BOOST_NO_AUTO_PTR
+
+ explicit shared_ptr(std::auto_ptr & r)
+ {
+ pn = new count_type(1); // may throw
+ px = r.release(); // fix: moved here to stop leak if new throws
+ }
+
+ shared_ptr & operator=(std::auto_ptr & r)
+ {
+ shared_ptr(r).swap(*this);
+ return *this;
+ }
+
+#endif
+
+ void reset(T * p = 0)
+ {
+ BOOST_ASSERT(p == 0 || p != px);
+ shared_ptr(p).swap(*this);
+ }
+
+ T & operator*() const // never throws
+ {
+ BOOST_ASSERT(px != 0);
+ return *px;
+ }
+
+ T * operator->() const // never throws
+ {
+ BOOST_ASSERT(px != 0);
+ return px;
+ }
+
+ T * get() const // never throws
+ {
+ return px;
+ }
+
+ long use_count() const // never throws
+ {
+ return *pn;
+ }
+
+ bool unique() const // never throws
+ {
+ return *pn == 1;
+ }
+
+ void swap(shared_ptr & other) // never throws
+ {
+ std::swap(px, other.px);
+ std::swap(pn, other.pn);
+ }
+
+private:
+
+ T * px; // contained pointer
+ count_type * pn; // ptr to reference counter
+};
+
+template inline bool operator==(shared_ptr const & a, shared_ptr const & b)
+{
+ return a.get() == b.get();
+}
+
+template inline bool operator!=(shared_ptr const & a, shared_ptr const & b)
+{
+ return a.get() != b.get();
+}
+
+template inline bool operator<(shared_ptr const & a, shared_ptr const & b)
+{
+ return std::less()(a.get(), b.get());
+}
+
+template void swap(shared_ptr & a, shared_ptr & b)
+{
+ a.swap(b);
+}
+
+// get_pointer() enables boost::mem_fn to recognize shared_ptr
+
+template inline T * get_pointer(shared_ptr const & p)
+{
+ return p.get();
+}
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_convertible.hpp b/include/boost/smart_ptr/detail/sp_convertible.hpp
new file mode 100644
index 0000000..66e5ec7
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_convertible.hpp
@@ -0,0 +1,76 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// detail/sp_convertible.hpp
+//
+// Copyright 2008 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
+
+#include
+
+#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( BOOST_NO_SFINAE )
+# define BOOST_SP_NO_SP_CONVERTIBLE
+#endif
+
+#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( __GNUC__ ) && ( __GNUC__ * 100 + __GNUC_MINOR__ < 303 )
+# define BOOST_SP_NO_SP_CONVERTIBLE
+#endif
+
+#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( __BORLANDC__ ) && ( __BORLANDC__ <= 0x610 )
+# define BOOST_SP_NO_SP_CONVERTIBLE
+#endif
+
+#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
+
+namespace boost
+{
+
+namespace detail
+{
+
+template< class Y, class T > struct sp_convertible
+{
+ typedef char (&yes) [1];
+ typedef char (&no) [2];
+
+ static yes f( T* );
+ static no f( ... );
+
+ enum _vt { value = sizeof( f( static_cast(0) ) ) == sizeof(yes) };
+};
+
+struct sp_empty
+{
+};
+
+template< bool > struct sp_enable_if_convertible_impl;
+
+template<> struct sp_enable_if_convertible_impl
+{
+ typedef sp_empty type;
+};
+
+template<> struct sp_enable_if_convertible_impl
+{
+};
+
+template< class Y, class T > struct sp_enable_if_convertible: public sp_enable_if_convertible_impl< sp_convertible< Y, T >::value >
+{
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // !defined( BOOST_SP_NO_SP_CONVERTIBLE )
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base.hpp b/include/boost/smart_ptr/detail/sp_counted_base.hpp
new file mode 100644
index 0000000..cab45cc
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base.hpp
@@ -0,0 +1,70 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base.hpp
+//
+// Copyright 2005, 2006 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)
+//
+
+#include
+#include
+
+#if defined( BOOST_SP_DISABLE_THREADS )
+# include
+
+#elif defined( BOOST_SP_USE_SPINLOCK )
+# include
+
+#elif defined( BOOST_SP_USE_PTHREADS )
+# include
+
+#elif defined( BOOST_DISABLE_THREADS ) && !defined( BOOST_SP_ENABLE_THREADS ) && !defined( BOOST_DISABLE_WIN32 )
+# include
+
+#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
+# include
+
+#elif defined( __GNUC__ ) && defined( __ia64__ ) && !defined( __INTEL_COMPILER )
+# include
+
+#elif defined(__HP_aCC) && defined(__ia64)
+# include
+
+#elif defined( __MWERKS__ ) && defined( __POWERPC__ )
+# include
+
+#elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) || defined( __ppc ) )
+# include
+
+#elif defined( __GNUC__ ) && ( defined( __mips__ ) || defined( _mips ) )
+# include
+
+#elif defined( BOOST_SP_HAS_SYNC )
+# include
+
+#elif defined(__GNUC__) && ( defined( __sparcv9 ) || ( defined( __sparcv8 ) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 402 ) ) )
+# include
+
+#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined(__CYGWIN__)
+# include
+
+#elif !defined( BOOST_HAS_THREADS )
+# include
+
+#else
+# include
+
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_acc_ia64.hpp b/include/boost/smart_ptr/detail/sp_counted_base_acc_ia64.hpp
new file mode 100644
index 0000000..dffd995
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_acc_ia64.hpp
@@ -0,0 +1,150 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
+
+//
+// detail/sp_counted_base_acc_ia64.hpp - aC++ on HP-UX IA64
+//
+// Copyright 2007 Baruch Zilber
+// Copyright 2007 Boris Gubenko
+//
+// 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+
+#include
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void atomic_increment( int * pw )
+{
+ // ++*pw;
+
+ _Asm_fetchadd(_FASZ_W, _SEM_REL, pw, +1, _LDHINT_NONE);
+}
+
+inline int atomic_decrement( int * pw )
+{
+ // return --*pw;
+
+ int r = static_cast(_Asm_fetchadd(_FASZ_W, _SEM_REL, pw, -1, _LDHINT_NONE));
+ if (1 == r)
+ {
+ _Asm_mf();
+ }
+
+ return r - 1;
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ // if( *pw != 0 ) ++*pw;
+ // return *pw;
+
+ int v = *pw;
+
+ for (;;)
+ {
+ if (0 == v)
+ {
+ return 0;
+ }
+
+ _Asm_mov_to_ar(_AREG_CCV,
+ v,
+ (_UP_CALL_FENCE | _UP_SYS_FENCE | _DOWN_CALL_FENCE | _DOWN_SYS_FENCE));
+ int r = static_cast(_Asm_cmpxchg(_SZ_W, _SEM_ACQ, pw, v + 1, _LDHINT_NONE));
+ if (r == v)
+ {
+ return r + 1;
+ }
+
+ v = r;
+ }
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ ); // TODO use ld.acq here
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp b/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp
new file mode 100644
index 0000000..51ac56a
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp
@@ -0,0 +1,170 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_cw_ppc.hpp - CodeWarrior on PowerPC
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+// Thanks to Ben Hitchings for the #weak + (#shared != 0)
+// formulation
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void atomic_increment( register long * pw )
+{
+ register int a;
+
+ asm
+ {
+loop:
+
+ lwarx a, 0, pw
+ addi a, a, 1
+ stwcx. a, 0, pw
+ bne- loop
+ }
+}
+
+inline long atomic_decrement( register long * pw )
+{
+ register int a;
+
+ asm
+ {
+ sync
+
+loop:
+
+ lwarx a, 0, pw
+ addi a, a, -1
+ stwcx. a, 0, pw
+ bne- loop
+
+ isync
+ }
+
+ return a;
+}
+
+inline long atomic_conditional_increment( register long * pw )
+{
+ register int a;
+
+ asm
+ {
+loop:
+
+ lwarx a, 0, pw
+ cmpwi a, 0
+ beq store
+
+ addi a, a, 1
+
+store:
+
+ stwcx. a, 0, pw
+ bne- loop
+ }
+
+ return a;
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ long use_count_; // #shared
+ long weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_cw_x86.hpp b/include/boost/smart_ptr/detail/sp_counted_base_cw_x86.hpp
new file mode 100644
index 0000000..1234e78
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_cw_x86.hpp
@@ -0,0 +1,158 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_cw_x86.hpp - CodeWarrion on 486+
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 Peter Dimov
+// Copyright 2005 Rene Rivera
+//
+// 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+// Thanks to Ben Hitchings for the #weak + (#shared != 0)
+// formulation
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline int atomic_exchange_and_add( int * pw, int dv )
+{
+ // int r = *pw;
+ // *pw += dv;
+ // return r;
+
+ asm
+ {
+ mov esi, [pw]
+ mov eax, dv
+ lock xadd dword ptr [esi], eax
+ }
+}
+
+inline void atomic_increment( int * pw )
+{
+ //atomic_exchange_and_add( pw, 1 );
+
+ asm
+ {
+ mov esi, [pw]
+ lock inc dword ptr [esi]
+ }
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ // int rv = *pw;
+ // if( rv != 0 ) ++*pw;
+ // return rv;
+
+ asm
+ {
+ mov esi, [pw]
+ mov eax, dword ptr [esi]
+ L0:
+ test eax, eax
+ je L1
+ mov ebx, eax
+ inc ebx
+ lock cmpxchg dword ptr [esi], ebx
+ jne L0
+ L1:
+ }
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_exchange_and_add( &use_count_, -1 ) == 1 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_exchange_and_add( &weak_count_, -1 ) == 1 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_gcc_ia64.hpp b/include/boost/smart_ptr/detail/sp_counted_base_gcc_ia64.hpp
new file mode 100644
index 0000000..d122a49
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_gcc_ia64.hpp
@@ -0,0 +1,157 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
+
+//
+// detail/sp_counted_base_gcc_ia64.hpp - g++ on IA64
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2006 Peter Dimov
+// Copyright 2005 Ben Hutchings
+//
+// 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void atomic_increment( int * pw )
+{
+ // ++*pw;
+
+ int tmp;
+
+ // No barrier is required here but fetchadd always has an acquire or
+ // release barrier associated with it. We choose release as it should be
+ // cheaper.
+ __asm__ ("fetchadd4.rel %0=%1,1" :
+ "=r"(tmp), "=m"(*pw) :
+ "m"( *pw ));
+}
+
+inline int atomic_decrement( int * pw )
+{
+ // return --*pw;
+
+ int rv;
+
+ __asm__ (" fetchadd4.rel %0=%1,-1 ;; \n"
+ " cmp.eq p7,p0=1,%0 ;; \n"
+ "(p7) ld4.acq %0=%1 " :
+ "=&r"(rv), "=m"(*pw) :
+ "m"( *pw ) :
+ "p7");
+
+ return rv;
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ // if( *pw != 0 ) ++*pw;
+ // return *pw;
+
+ int rv, tmp, tmp2;
+
+ __asm__ ("0: ld4 %0=%3 ;; \n"
+ " cmp.eq p7,p0=0,%0 ;; \n"
+ "(p7) br.cond.spnt 1f \n"
+ " mov ar.ccv=%0 \n"
+ " add %1=1,%0 ;; \n"
+ " cmpxchg4.acq %2=%3,%1,ar.ccv ;; \n"
+ " cmp.ne p7,p0=%0,%2 ;; \n"
+ "(p7) br.cond.spnt 0b \n"
+ " mov %0=%1 ;; \n"
+ "1:" :
+ "=&r"(rv), "=&r"(tmp), "=&r"(tmp2), "=m"(*pw) :
+ "m"( *pw ) :
+ "ar.ccv", "p7");
+
+ return rv;
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ ); // TODO use ld.acq here
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp b/include/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp
new file mode 100644
index 0000000..0c69b0b
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp
@@ -0,0 +1,172 @@
+#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED
+#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_gcc_mips.hpp - g++ on MIPS
+//
+// Copyright (c) 2009, Spirent Communications, Inc.
+//
+// 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void atomic_increment( int * pw )
+{
+ // ++*pw;
+
+ int tmp;
+
+ __asm__ __volatile__
+ (
+ "0:\n\t"
+ "ll %0, %1\n\t"
+ "addiu %0, 1\n\t"
+ "sc %0, %1\n\t"
+ "beqz %0, 0b":
+ "=&r"( tmp ), "=m"( *pw ):
+ "m"( *pw )
+ );
+}
+
+inline int atomic_decrement( int * pw )
+{
+ // return --*pw;
+
+ int rv, tmp;
+
+ __asm__ __volatile__
+ (
+ "0:\n\t"
+ "ll %1, %2\n\t"
+ "addiu %0, %1, -1\n\t"
+ "sc %0, %2\n\t"
+ "beqz %0, 0b\n\t"
+ "addiu %0, %1, -1":
+ "=&r"( rv ), "=&r"( tmp ), "=m"( *pw ):
+ "m"( *pw ):
+ "memory"
+ );
+
+ return rv;
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ // if( *pw != 0 ) ++*pw;
+ // return *pw;
+
+ int rv, tmp;
+
+ __asm__ __volatile__
+ (
+ "0:\n\t"
+ "ll %0, %2\n\t"
+ "beqz %0, 1f\n\t"
+ "addiu %1, %0, 1\n\t"
+ "sc %1, %2\n\t"
+ "beqz %1, 0b\n\t"
+ "addiu %0, %0, 1\n\t"
+ "1:":
+ "=&r"( rv ), "=&r"( tmp ), "=m"( *pw ):
+ "m"( *pw ):
+ "memory"
+ );
+
+ return rv;
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp b/include/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp
new file mode 100644
index 0000000..7f5c414
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp
@@ -0,0 +1,181 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_gcc_ppc.hpp - g++ on PowerPC
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+// Thanks to Ben Hitchings for the #weak + (#shared != 0)
+// formulation
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void atomic_increment( int * pw )
+{
+ // ++*pw;
+
+ int tmp;
+
+ __asm__
+ (
+ "0:\n\t"
+ "lwarx %1, 0, %2\n\t"
+ "addi %1, %1, 1\n\t"
+ "stwcx. %1, 0, %2\n\t"
+ "bne- 0b":
+
+ "=m"( *pw ), "=&b"( tmp ):
+ "r"( pw ), "m"( *pw ):
+ "cc"
+ );
+}
+
+inline int atomic_decrement( int * pw )
+{
+ // return --*pw;
+
+ int rv;
+
+ __asm__ __volatile__
+ (
+ "sync\n\t"
+ "0:\n\t"
+ "lwarx %1, 0, %2\n\t"
+ "addi %1, %1, -1\n\t"
+ "stwcx. %1, 0, %2\n\t"
+ "bne- 0b\n\t"
+ "isync":
+
+ "=m"( *pw ), "=&b"( rv ):
+ "r"( pw ), "m"( *pw ):
+ "memory", "cc"
+ );
+
+ return rv;
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ // if( *pw != 0 ) ++*pw;
+ // return *pw;
+
+ int rv;
+
+ __asm__
+ (
+ "0:\n\t"
+ "lwarx %1, 0, %2\n\t"
+ "cmpwi %1, 0\n\t"
+ "beq 1f\n\t"
+ "addi %1, %1, 1\n\t"
+ "1:\n\t"
+ "stwcx. %1, 0, %2\n\t"
+ "bne- 0b":
+
+ "=m"( *pw ), "=&b"( rv ):
+ "r"( pw ), "m"( *pw ):
+ "cc"
+ );
+
+ return rv;
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_gcc_sparc.hpp b/include/boost/smart_ptr/detail/sp_counted_base_gcc_sparc.hpp
new file mode 100644
index 0000000..8af6f0a
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_gcc_sparc.hpp
@@ -0,0 +1,166 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// detail/sp_counted_base_gcc_sparc.hpp - g++ on Sparc V8+
+//
+// Copyright (c) 2006 Piotr Wyderski
+// Copyright (c) 2006 Tomas Puverle
+// Copyright (c) 2006 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
+//
+// Thanks to Michael van der Westhuizen
+
+#include
+#include // int32_t
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline int32_t compare_and_swap( int32_t * dest_, int32_t compare_, int32_t swap_ )
+{
+ __asm__ __volatile__( "cas %0, %2, %1"
+ : "+m" (*dest_), "+r" (swap_)
+ : "r" (compare_)
+ : "memory" );
+
+ return swap_;
+}
+
+inline int32_t atomic_fetch_and_add( int32_t * pw, int32_t dv )
+{
+ // long r = *pw;
+ // *pw += dv;
+ // return r;
+
+ for( ;; )
+ {
+ int32_t r = *pw;
+
+ if( __builtin_expect((compare_and_swap(pw, r, r + dv) == r), 1) )
+ {
+ return r;
+ }
+ }
+}
+
+inline void atomic_increment( int32_t * pw )
+{
+ atomic_fetch_and_add( pw, 1 );
+}
+
+inline int32_t atomic_decrement( int32_t * pw )
+{
+ return atomic_fetch_and_add( pw, -1 );
+}
+
+inline int32_t atomic_conditional_increment( int32_t * pw )
+{
+ // long r = *pw;
+ // if( r != 0 ) ++*pw;
+ // return r;
+
+ for( ;; )
+ {
+ int32_t r = *pw;
+
+ if( r == 0 )
+ {
+ return r;
+ }
+
+ if( __builtin_expect( ( compare_and_swap( pw, r, r + 1 ) == r ), 1 ) )
+ {
+ return r;
+ }
+ }
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int32_t use_count_; // #shared
+ int32_t weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 1 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 1 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return const_cast< int32_t const volatile & >( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp b/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp
new file mode 100644
index 0000000..4d7fa8d
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp
@@ -0,0 +1,173 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_gcc_x86.hpp - g++ on 486+ or AMD64
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+// Thanks to Ben Hitchings for the #weak + (#shared != 0)
+// formulation
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline int atomic_exchange_and_add( int * pw, int dv )
+{
+ // int r = *pw;
+ // *pw += dv;
+ // return r;
+
+ int r;
+
+ __asm__ __volatile__
+ (
+ "lock\n\t"
+ "xadd %1, %0":
+ "=m"( *pw ), "=r"( r ): // outputs (%0, %1)
+ "m"( *pw ), "1"( dv ): // inputs (%2, %3 == %1)
+ "memory", "cc" // clobbers
+ );
+
+ return r;
+}
+
+inline void atomic_increment( int * pw )
+{
+ //atomic_exchange_and_add( pw, 1 );
+
+ __asm__
+ (
+ "lock\n\t"
+ "incl %0":
+ "=m"( *pw ): // output (%0)
+ "m"( *pw ): // input (%1)
+ "cc" // clobbers
+ );
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ // int rv = *pw;
+ // if( rv != 0 ) ++*pw;
+ // return rv;
+
+ int rv, tmp;
+
+ __asm__
+ (
+ "movl %0, %%eax\n\t"
+ "0:\n\t"
+ "test %%eax, %%eax\n\t"
+ "je 1f\n\t"
+ "movl %%eax, %2\n\t"
+ "incl %2\n\t"
+ "lock\n\t"
+ "cmpxchgl %2, %0\n\t"
+ "jne 0b\n\t"
+ "1:":
+ "=m"( *pw ), "=&a"( rv ), "=&r"( tmp ): // outputs (%0, %1, %2)
+ "m"( *pw ): // input (%3)
+ "cc" // clobbers
+ );
+
+ return rv;
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_exchange_and_add( &use_count_, -1 ) == 1 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_exchange_and_add( &weak_count_, -1 ) == 1 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_nt.hpp b/include/boost/smart_ptr/detail/sp_counted_base_nt.hpp
new file mode 100644
index 0000000..dfd70e7
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_nt.hpp
@@ -0,0 +1,107 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_nt.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ long use_count_; // #shared
+ long weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ ++use_count_;
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ if( use_count_ == 0 ) return false;
+ ++use_count_;
+ return true;
+ }
+
+ void release() // nothrow
+ {
+ if( --use_count_ == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ ++weak_count_;
+ }
+
+ void weak_release() // nothrow
+ {
+ if( --weak_count_ == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return use_count_;
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_pt.hpp b/include/boost/smart_ptr/detail/sp_counted_base_pt.hpp
new file mode 100644
index 0000000..3c56fec
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_pt.hpp
@@ -0,0 +1,135 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_pt.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+
+#include
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ long use_count_; // #shared
+ long weak_count_; // #weak + (#shared != 0)
+
+ mutable pthread_mutex_t m_;
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+// HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
+
+#if defined(__hpux) && defined(_DECTHREADS_)
+ pthread_mutex_init( &m_, pthread_mutexattr_default );
+#else
+ pthread_mutex_init( &m_, 0 );
+#endif
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ pthread_mutex_destroy( &m_ );
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ pthread_mutex_lock( &m_ );
+ ++use_count_;
+ pthread_mutex_unlock( &m_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ pthread_mutex_lock( &m_ );
+ bool r = use_count_ == 0? false: ( ++use_count_, true );
+ pthread_mutex_unlock( &m_ );
+ return r;
+ }
+
+ void release() // nothrow
+ {
+ pthread_mutex_lock( &m_ );
+ long new_use_count = --use_count_;
+ pthread_mutex_unlock( &m_ );
+
+ if( new_use_count == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ pthread_mutex_lock( &m_ );
+ ++weak_count_;
+ pthread_mutex_unlock( &m_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ pthread_mutex_lock( &m_ );
+ long new_weak_count = --weak_count_;
+ pthread_mutex_unlock( &m_ );
+
+ if( new_weak_count == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ pthread_mutex_lock( &m_ );
+ long r = use_count_;
+ pthread_mutex_unlock( &m_ );
+
+ return r;
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_solaris.hpp b/include/boost/smart_ptr/detail/sp_counted_base_solaris.hpp
new file mode 100644
index 0000000..d1b6bec
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_solaris.hpp
@@ -0,0 +1,113 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
+
+//
+// detail/sp_counted_base_solaris.hpp
+// based on: detail/sp_counted_base_w32.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 Peter Dimov
+// Copyright 2006 Michael van der Westhuizen
+//
+// 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+// Thanks to Ben Hitchings for the #weak + (#shared != 0)
+// formulation
+//
+
+#include
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ uint32_t use_count_; // #shared
+ uint32_t weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_inc_32( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ for( ;; )
+ {
+ uint32_t tmp = static_cast< uint32_t const volatile& >( use_count_ );
+ if( tmp == 0 ) return false;
+ if( atomic_cas_32( &use_count_, tmp, tmp + 1 ) == tmp ) return true;
+ }
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_dec_32_nv( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_inc_32( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_dec_32_nv( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_spin.hpp b/include/boost/smart_ptr/detail/sp_counted_base_spin.hpp
new file mode 100644
index 0000000..bbd11e6
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_spin.hpp
@@ -0,0 +1,131 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_spin.hpp - spinlock pool atomic emulation
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2008 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)
+//
+
+#include
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline int atomic_exchange_and_add( int * pw, int dv )
+{
+ spinlock_pool<1>::scoped_lock lock( pw );
+
+ int r = *pw;
+ *pw += dv;
+ return r;
+}
+
+inline void atomic_increment( int * pw )
+{
+ spinlock_pool<1>::scoped_lock lock( pw );
+ ++*pw;
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+ spinlock_pool<1>::scoped_lock lock( pw );
+
+ int rv = *pw;
+ if( rv != 0 ) ++*pw;
+ return rv;
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ int use_count_; // #shared
+ int weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_exchange_and_add( &use_count_, -1 ) == 1 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_exchange_and_add( &weak_count_, -1 ) == 1 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ spinlock_pool<1>::scoped_lock lock( &use_count_ );
+ return use_count_;
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_sync.hpp b/include/boost/smart_ptr/detail/sp_counted_base_sync.hpp
new file mode 100644
index 0000000..41f654e
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_sync.hpp
@@ -0,0 +1,155 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// detail/sp_counted_base_sync.hpp - g++ 4.1+ __sync intrinsics
+//
+// Copyright (c) 2007 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
+
+#include
+#include
+
+#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
+# include
+#endif
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if INT_MAX >= 2147483647
+
+typedef int sp_int32_t;
+
+#else
+
+typedef long sp_int32_t;
+
+#endif
+
+inline void atomic_increment( sp_int32_t * pw )
+{
+ __sync_fetch_and_add( pw, 1 );
+}
+
+inline sp_int32_t atomic_decrement( sp_int32_t * pw )
+{
+ return __sync_fetch_and_add( pw, -1 );
+}
+
+inline sp_int32_t atomic_conditional_increment( sp_int32_t * pw )
+{
+ // long r = *pw;
+ // if( r != 0 ) ++*pw;
+ // return r;
+
+ sp_int32_t r = *pw;
+
+ for( ;; )
+ {
+ if( r == 0 )
+ {
+ return r;
+ }
+
+ sp_int32_t r2 = __sync_val_compare_and_swap( pw, r, r + 1 );
+
+ if( r2 == r )
+ {
+ return r;
+ }
+ else
+ {
+ r = r2;
+ }
+ }
+}
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ sp_int32_t use_count_; // #shared
+ sp_int32_t weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ atomic_increment( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ return atomic_conditional_increment( &use_count_ ) != 0;
+ }
+
+ void release() // nothrow
+ {
+ if( atomic_decrement( &use_count_ ) == 1 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ atomic_increment( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( atomic_decrement( &weak_count_ ) == 1 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return const_cast< sp_int32_t const volatile & >( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_base_w32.hpp b/include/boost/smart_ptr/detail/sp_counted_base_w32.hpp
new file mode 100644
index 0000000..06aa456
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_base_w32.hpp
@@ -0,0 +1,130 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_w32.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+//
+// Lock-free algorithm by Alexander Terekhov
+//
+// Thanks to Ben Hitchings for the #weak + (#shared != 0)
+// formulation
+//
+
+#include
+#include
+#include
+
+namespace boost
+{
+
+namespace detail
+{
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ long use_count_; // #shared
+ long weak_count_; // #weak + (#shared != 0)
+
+public:
+
+ sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+ {
+ }
+
+ virtual ~sp_counted_base() // nothrow
+ {
+ }
+
+ // dispose() is called when use_count_ drops to zero, to release
+ // the resources managed by *this.
+
+ virtual void dispose() = 0; // nothrow
+
+ // destroy() is called when weak_count_ drops to zero.
+
+ virtual void destroy() // nothrow
+ {
+ delete this;
+ }
+
+ virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+ void add_ref_copy()
+ {
+ BOOST_INTERLOCKED_INCREMENT( &use_count_ );
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ for( ;; )
+ {
+ long tmp = static_cast< long const volatile& >( use_count_ );
+ if( tmp == 0 ) return false;
+
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, == 1200 )
+
+ // work around a code generation bug
+
+ long tmp2 = tmp + 1;
+ if( BOOST_INTERLOCKED_COMPARE_EXCHANGE( &use_count_, tmp2, tmp ) == tmp2 - 1 ) return true;
+
+#else
+
+ if( BOOST_INTERLOCKED_COMPARE_EXCHANGE( &use_count_, tmp + 1, tmp ) == tmp ) return true;
+
+#endif
+ }
+ }
+
+ void release() // nothrow
+ {
+ if( BOOST_INTERLOCKED_DECREMENT( &use_count_ ) == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ BOOST_INTERLOCKED_INCREMENT( &weak_count_ );
+ }
+
+ void weak_release() // nothrow
+ {
+ if( BOOST_INTERLOCKED_DECREMENT( &weak_count_ ) == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return static_cast( use_count_ );
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
diff --git a/include/boost/smart_ptr/detail/sp_counted_impl.hpp b/include/boost/smart_ptr/detail/sp_counted_impl.hpp
new file mode 100644
index 0000000..397421a
--- /dev/null
+++ b/include/boost/smart_ptr/detail/sp_counted_impl.hpp
@@ -0,0 +1,231 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_impl.hpp
+//
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+// Copyright 2004-2005 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)
+//
+
+#include
+
+#if defined(BOOST_SP_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR)
+# error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible.
+#endif
+
+#include
+#include
+
+#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
+#include
+#endif
+
+#if defined(BOOST_SP_USE_STD_ALLOCATOR)
+#include