-#ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED\r
-#define BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED\r
-\r
-//\r
-// detail/shared_array_nmt.hpp - shared_array.hpp without member templates\r
-//\r
-// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.\r
-// Copyright (c) 2001, 2002 Peter Dimov\r
-//\r
-// Distributed under the Boost Software License, Version 1.0. (See\r
-// accompanying file LICENSE_1_0.txt or copy at\r
-// http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-// See http://www.boost.org/libs/smart_ptr/shared_array.htm for documentation.\r
-//\r
-\r
-#include <boost/assert.hpp>\r
-#include <boost/checked_delete.hpp>\r
-#include <boost/throw_exception.hpp>\r
-#include <boost/smart_ptr/detail/atomic_count.hpp>\r
-\r
-#include <cstddef> // for std::ptrdiff_t\r
-#include <algorithm> // for std::swap\r
-#include <functional> // for std::less\r
-#include <new> // for std::bad_alloc\r
-\r
-namespace boost\r
-{\r
-\r
-template<class T> class shared_array\r
-{\r
-private:\r
-\r
- typedef detail::atomic_count count_type;\r
-\r
-public:\r
-\r
- typedef T element_type;\r
- \r
- explicit shared_array(T * p = 0): px(p)\r
- {\r
-#ifndef BOOST_NO_EXCEPTIONS\r
-\r
- try // prevent leak if new throws\r
- {\r
- pn = new count_type(1);\r
- }\r
- catch(...)\r
- {\r
- boost::checked_array_delete(p);\r
- throw;\r
- }\r
-\r
-#else\r
-\r
- pn = new count_type(1);\r
-\r
- if(pn == 0)\r
- {\r
- boost::checked_array_delete(p);\r
- boost::throw_exception(std::bad_alloc());\r
- }\r
-\r
-#endif\r
- }\r
-\r
- ~shared_array()\r
- {\r
- if(--*pn == 0)\r
- {\r
- boost::checked_array_delete(px);\r
- delete pn;\r
- }\r
- }\r
-\r
- shared_array(shared_array const & r) : px(r.px) // never throws\r
- {\r
- pn = r.pn;\r
- ++*pn;\r
- }\r
-\r
- shared_array & operator=(shared_array const & r)\r
- {\r
- shared_array(r).swap(*this);\r
- return *this;\r
- }\r
-\r
- void reset(T * p = 0)\r
- {\r
- BOOST_ASSERT(p == 0 || p != px);\r
- shared_array(p).swap(*this);\r
- }\r
-\r
- T * get() const // never throws\r
- {\r
- return px;\r
- }\r
-\r
- T & operator[](std::ptrdiff_t i) const // never throws\r
- {\r
- BOOST_ASSERT(px != 0);\r
- BOOST_ASSERT(i >= 0);\r
- return px[i];\r
- }\r
-\r
- long use_count() const // never throws\r
- {\r
- return *pn;\r
- }\r
-\r
- bool unique() const // never throws\r
- {\r
- return *pn == 1;\r
- }\r
-\r
- void swap(shared_array<T> & other) // never throws\r
- {\r
- std::swap(px, other.px);\r
- std::swap(pn, other.pn);\r
- }\r
-\r
-private:\r
-\r
- T * px; // contained pointer\r
- count_type * pn; // ptr to reference counter\r
- \r
-}; // shared_array\r
-\r
-template<class T, class U> inline bool operator==(shared_array<T> const & a, shared_array<U> const & b)\r
-{\r
- return a.get() == b.get();\r
-}\r
-\r
-template<class T, class U> inline bool operator!=(shared_array<T> const & a, shared_array<U> const & b)\r
-{\r
- return a.get() != b.get();\r
-}\r
-\r
-template<class T> inline bool operator<(shared_array<T> const & a, shared_array<T> const & b)\r
-{\r
- return std::less<T*>()(a.get(), b.get());\r
-}\r
-\r
-template<class T> void swap(shared_array<T> & a, shared_array<T> & b)\r
-{\r
- a.swap(b);\r
-}\r
-\r
-} // namespace boost\r
-\r
-#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED\r
+#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 <boost/assert.hpp>
+#include <boost/checked_delete.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/smart_ptr/detail/atomic_count.hpp>
+
+#include <cstddef> // for std::ptrdiff_t
+#include <algorithm> // for std::swap
+#include <functional> // for std::less
+#include <new> // for std::bad_alloc
+
+namespace boost
+{
+
+template<class T> 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<T> & 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<class T, class U> inline bool operator==(shared_array<T> const & a, shared_array<U> const & b)
+{
+ return a.get() == b.get();
+}
+
+template<class T, class U> inline bool operator!=(shared_array<T> const & a, shared_array<U> const & b)
+{
+ return a.get() != b.get();
+}
+
+template<class T> inline bool operator<(shared_array<T> const & a, shared_array<T> const & b)
+{
+ return std::less<T*>()(a.get(), b.get());
+}
+
+template<class T> void swap(shared_array<T> & a, shared_array<T> & b)
+{
+ a.swap(b);
+}
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
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