--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/intrusive_ptr.hpp Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,277 @@
+#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 <boost/config.hpp>
+
+#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
+# pragma warning(push)
+# pragma warning(disable:4284) // odd return type for operator->
+#endif
+
+#include <boost/assert.hpp>
+#include <boost/detail/workaround.hpp>
+
+#include <functional> // for std::less
+#include <iosfwd> // for std::basic_ostream
+
+
+namespace boost
+{
+
+//
+// intrusive_ptr
+//
+// A smart pointer that uses intrusive reference counting.
+//
+// Relies on unqualified calls to
+//
+// void intrusive_ptr_add_ref(T * p);
+// void intrusive_ptr_release(T * p);
+//
+// (p != 0)
+//
+// The object is responsible for destroying itself.
+//
+
+template<class T> class intrusive_ptr
+{
+private:
+
+ typedef intrusive_ptr this_type;
+
+public:
+
+ typedef T element_type;
+
+ intrusive_ptr(): p_(0)
+ {
+ }
+
+ intrusive_ptr(T * p, bool add_ref = true): p_(p)
+ {
+ if(p_ != 0 && add_ref) intrusive_ptr_add_ref(p_);
+ }
+
+#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
+
+ template<class U> intrusive_ptr(intrusive_ptr<U> const & rhs): p_(rhs.get())
+ {
+ if(p_ != 0) intrusive_ptr_add_ref(p_);
+ }
+
+#endif
+
+ intrusive_ptr(intrusive_ptr const & rhs): p_(rhs.p_)
+ {
+ if(p_ != 0) intrusive_ptr_add_ref(p_);
+ }
+
+ ~intrusive_ptr()
+ {
+ if(p_ != 0) intrusive_ptr_release(p_);
+ }
+
+#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
+
+ template<class U> intrusive_ptr & operator=(intrusive_ptr<U> const & rhs)
+ {
+ this_type(rhs).swap(*this);
+ return *this;
+ }
+
+#endif
+
+ intrusive_ptr & operator=(intrusive_ptr const & rhs)
+ {
+ this_type(rhs).swap(*this);
+ return *this;
+ }
+
+ intrusive_ptr & operator=(T * rhs)
+ {
+ this_type(rhs).swap(*this);
+ return *this;
+ }
+
+ T * get() const
+ {
+ return p_;
+ }
+
+ T & operator*() const
+ {
+ return *p_;
+ }
+
+ T * operator->() const
+ {
+ return p_;
+ }
+
+#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
+
+ operator bool () const
+ {
+ return p_ != 0;
+ }
+
+#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
+ typedef T * (this_type::*unspecified_bool_type)() const;
+
+ operator unspecified_bool_type() const // never throws
+ {
+ return p_ == 0? 0: &this_type::get;
+ }
+
+#else
+
+ typedef T * this_type::*unspecified_bool_type;
+
+ operator unspecified_bool_type () const
+ {
+ return p_ == 0? 0: &this_type::p_;
+ }
+
+#endif
+
+ // operator! is a Borland-specific workaround
+ bool operator! () const
+ {
+ return p_ == 0;
+ }
+
+ void swap(intrusive_ptr & rhs)
+ {
+ T * tmp = p_;
+ p_ = rhs.p_;
+ rhs.p_ = tmp;
+ }
+
+private:
+
+ T * p_;
+};
+
+template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)
+{
+ return a.get() == b.get();
+}
+
+template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)
+{
+ return a.get() != b.get();
+}
+
+template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, U * b)
+{
+ return a.get() == b;
+}
+
+template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, U * b)
+{
+ return a.get() != b;
+}
+
+template<class T, class U> inline bool operator==(T * a, intrusive_ptr<U> const & b)
+{
+ return a == b.get();
+}
+
+template<class T, class U> inline bool operator!=(T * a, intrusive_ptr<U> const & b)
+{
+ return a != b.get();
+}
+
+#if __GNUC__ == 2 && __GNUC_MINOR__ <= 96
+
+// Resolve the ambiguity between our op!= and the one in rel_ops
+
+template<class T> inline bool operator!=(intrusive_ptr<T> const & a, intrusive_ptr<T> const & b)
+{
+ return a.get() != b.get();
+}
+
+#endif
+
+template<class T> inline bool operator<(intrusive_ptr<T> const & a, intrusive_ptr<T> const & b)
+{
+ return std::less<T *>()(a.get(), b.get());
+}
+
+template<class T> void swap(intrusive_ptr<T> & lhs, intrusive_ptr<T> & rhs)
+{
+ lhs.swap(rhs);
+}
+
+// mem_fn support
+
+template<class T> T * get_pointer(intrusive_ptr<T> const & p)
+{
+ return p.get();
+}
+
+template<class T, class U> intrusive_ptr<T> static_pointer_cast(intrusive_ptr<U> const & p)
+{
+ return static_cast<T *>(p.get());
+}
+
+template<class T, class U> intrusive_ptr<T> const_pointer_cast(intrusive_ptr<U> const & p)
+{
+ return const_cast<T *>(p.get());
+}
+
+template<class T, class U> intrusive_ptr<T> dynamic_pointer_cast(intrusive_ptr<U> const & p)
+{
+ return dynamic_cast<T *>(p.get());
+}
+
+// operator<<
+
+#if defined(__GNUC__) && (__GNUC__ < 3)
+
+template<class Y> std::ostream & operator<< (std::ostream & os, intrusive_ptr<Y> const & p)
+{
+ os << p.get();
+ return os;
+}
+
+#else
+
+// in STLport's no-iostreams mode no iostream symbols can be used
+#ifndef _STLP_NO_IOSTREAMS
+
+# if defined(BOOST_MSVC) && BOOST_WORKAROUND(BOOST_MSVC, < 1300 && __SGI_STL_PORT)
+// MSVC6 has problems finding std::basic_ostream through the using declaration in namespace _STL
+using std::basic_ostream;
+template<class E, class T, class Y> basic_ostream<E, T> & operator<< (basic_ostream<E, T> & os, intrusive_ptr<Y> const & p)
+# else
+template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::basic_ostream<E, T> & os, intrusive_ptr<Y> const & p)
+# endif
+{
+ os << p.get();
+ return os;
+}
+
+#endif // _STLP_NO_IOSTREAMS
+
+#endif // __GNUC__ < 3
+
+} // namespace boost
+
+#ifdef BOOST_MSVC
+# pragma warning(pop)
+#endif
+
+#endif // #ifndef BOOST_INTRUSIVE_PTR_HPP_INCLUDED