2008-09-04 Jonathan Wakely <jwakely.gcc@gmail.com>
+ PR libstdc++/36962
+ * include/Makefile.am: Update headers.
+ * include/Makefile.in: Regenerate.
+ * include/std/memory: Update headers.
+ * include/tr1/memory: Likewise.
+ * include/tr1_impl/boost_shared_ptr.h: Remove, splitting into
+ separate implementations for std and tr1.
+ * include/bits/boost_sp_shared_count.h: Remove.
+ * include/tr1/boost_sp_shared_count.h: Remove.
+ * include/bits/shared_ptr.h: New. Combines boost_sp_shared_count.h
+ and boost_shared_ptr.h into one file.
+ (__shared_count,__shared_ptr,shared_ptr,swap): Add unique_ptr
+ and rvalue-reference support as per current WP.
+ * include/tr1/shared_ptr.h: New. Combines boost_sp_shared_count.h
+ and boost_shared_ptr.h into one file.
+ * testsuite/20_util/shared_ptr/cons/unique_ptr.cc: New.
+ * testsuite/20_util/shared_ptr/cons/unique_ptr_deleter.cc: New.
+ * testsuite/20_util/shared_ptr/cons/unique_ptr_deleter_ref.cc: New.
+ * testsuite/20_util/shared_ptr/cons/unique_ptr_neg.cc: New.
+ * testsuite/20_util/shared_ptr/assign/auto_ptr_rvalue.cc: New.
+ * testsuite/20_util/shared_ptr/assign/unique_ptr_lvalue_neg.cc: New.
+ * testsuite/20_util/shared_ptr/assign/unique_ptr_rvalue.cc: New.
+ * testsuite/20_util/shared_ptr/modifiers/swap_rvalue.cc: New.
+ * testsuite/20_util/shared_ptr/assign/auto_ptr_rvalue_neg.cc: Remove.
+
+2008-09-04 Jonathan Wakely <jwakely.gcc@gmail.com>
+
* doc/xml/manual/locale.xml: Fix typo.
2008-09-04 Paolo Carlini <paolo.carlini@oracle.com>
${bits_srcdir}/basic_string.h \
${bits_srcdir}/basic_string.tcc \
${bits_srcdir}/boost_concept_check.h \
- ${bits_srcdir}/boost_sp_shared_count.h \
${bits_srcdir}/char_traits.h \
${bits_srcdir}/codecvt.h \
${bits_srcdir}/concept_check.h \
${bits_srcdir}/postypes.h \
${bits_srcdir}/stream_iterator.h \
${bits_srcdir}/streambuf_iterator.h \
+ ${bits_srcdir}/shared_ptr.h \
${bits_srcdir}/slice_array.h \
${bits_srcdir}/sstream.tcc \
${bits_srcdir}/stl_algo.h \
${tr1_srcdir}/array \
${tr1_srcdir}/bessel_function.tcc \
${tr1_srcdir}/beta_function.tcc \
- ${tr1_srcdir}/boost_sp_shared_count.h \
${tr1_srcdir}/ccomplex \
${tr1_srcdir}/cctype \
${tr1_srcdir}/cfenv \
${tr1_srcdir}/random \
${tr1_srcdir}/regex \
${tr1_srcdir}/riemann_zeta.tcc \
+ ${tr1_srcdir}/shared_ptr.h \
${tr1_srcdir}/special_function_util.h \
${tr1_srcdir}/stdarg.h \
${tr1_srcdir}/stdbool.h \
tr1_impl_builddir = ./tr1_impl
tr1_impl_headers = \
${tr1_impl_srcdir}/array \
- ${tr1_impl_srcdir}/boost_shared_ptr.h \
${tr1_impl_srcdir}/boost_sp_counted_base.h \
${tr1_impl_srcdir}/cctype \
${tr1_impl_srcdir}/cfenv \
${bits_srcdir}/basic_string.h \
${bits_srcdir}/basic_string.tcc \
${bits_srcdir}/boost_concept_check.h \
- ${bits_srcdir}/boost_sp_shared_count.h \
${bits_srcdir}/char_traits.h \
${bits_srcdir}/codecvt.h \
${bits_srcdir}/concept_check.h \
${bits_srcdir}/postypes.h \
${bits_srcdir}/stream_iterator.h \
${bits_srcdir}/streambuf_iterator.h \
+ ${bits_srcdir}/shared_ptr.h \
${bits_srcdir}/slice_array.h \
${bits_srcdir}/sstream.tcc \
${bits_srcdir}/stl_algo.h \
${tr1_srcdir}/array \
${tr1_srcdir}/bessel_function.tcc \
${tr1_srcdir}/beta_function.tcc \
- ${tr1_srcdir}/boost_sp_shared_count.h \
${tr1_srcdir}/ccomplex \
${tr1_srcdir}/cctype \
${tr1_srcdir}/cfenv \
${tr1_srcdir}/random \
${tr1_srcdir}/regex \
${tr1_srcdir}/riemann_zeta.tcc \
+ ${tr1_srcdir}/shared_ptr.h \
${tr1_srcdir}/special_function_util.h \
${tr1_srcdir}/stdarg.h \
${tr1_srcdir}/stdbool.h \
tr1_impl_builddir = ./tr1_impl
tr1_impl_headers = \
${tr1_impl_srcdir}/array \
- ${tr1_impl_srcdir}/boost_shared_ptr.h \
${tr1_impl_srcdir}/boost_sp_counted_base.h \
${tr1_impl_srcdir}/cctype \
${tr1_impl_srcdir}/cfenv \
+++ /dev/null
-// <bits/boost_sp_shared_count.h> -*- C++ -*-
-
-// Copyright (C) 2007 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library. This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-// shared_count.hpp
-// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
-
-// shared_ptr.hpp
-// Copyright (C) 1998, 1999 Greg Colvin and Beman Dawes.
-// Copyright (C) 2001, 2002, 2003 Peter Dimov
-
-// weak_ptr.hpp
-// Copyright (C) 2001, 2002, 2003 Peter Dimov
-
-// 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)
-
-// GCC Note: based on version 1.32.0 of the Boost library.
-
-/** @file bits/boost_sp_shared_count.h
- * This is an internal header file, included by other library headers.
- * You should not attempt to use it directly.
- */
-
-#ifndef __GXX_EXPERIMENTAL_CXX0X__
-# include <c++0x_warning.h>
-#endif
-
-#if defined(_GLIBCXX_INCLUDE_AS_TR1)
-# error C++0x header cannot be included from TR1 header
-#endif
-
-namespace std
-{
- // counted ptr with no deleter or allocator support
- template<typename _Ptr, _Lock_policy _Lp>
- class _Sp_counted_ptr
- : public _Sp_counted_base<_Lp>
- {
- public:
- _Sp_counted_ptr(_Ptr __p)
- : _M_ptr(__p) { }
-
- virtual void
- _M_dispose() // nothrow
- { delete _M_ptr; }
-
- virtual void
- _M_destroy() // nothrow
- { delete this; }
-
- virtual void*
- _M_get_deleter(const std::type_info& __ti)
- { return 0; }
-
- private:
- _Sp_counted_ptr(const _Sp_counted_ptr&);
- _Sp_counted_ptr& operator=(const _Sp_counted_ptr&);
-
- protected:
- _Ptr _M_ptr; // copy constructor must not throw
- };
-
- // support for custom deleter and/or allocator
- template<typename _Ptr, typename _Deleter, typename _Alloc, _Lock_policy _Lp>
- class _Sp_counted_deleter
- : public _Sp_counted_ptr<_Ptr, _Lp>
- {
- typedef typename _Alloc::template
- rebind<_Sp_counted_deleter>::other _My_alloc_type;
-
- // Helper class that stores the Deleter and also acts as an allocator.
- // Used to dispose of the owned pointer and the internal refcount
- // Requires that copies of _Alloc can free each other's memory.
- struct _My_Deleter
- : public _My_alloc_type // copy constructor must not throw
- {
- _Deleter _M_del; // copy constructor must not throw
- _My_Deleter(_Deleter __d, const _Alloc& __a)
- : _My_alloc_type(__a), _M_del(__d) { }
- };
-
- protected:
- typedef _Sp_counted_ptr<_Ptr, _Lp> _Base_type;
-
- public:
- /**
- * @brief
- * @pre __d(__p) must not throw.
- */
- _Sp_counted_deleter(_Ptr __p, _Deleter __d)
- : _Base_type(__p), _M_del(__d, _Alloc()) { }
-
- /**
- * @brief
- * @pre __d(__p) must not throw.
- */
- _Sp_counted_deleter(_Ptr __p, _Deleter __d, const _Alloc& __a)
- : _Base_type(__p), _M_del(__d, __a) { }
-
- virtual void
- _M_dispose() // nothrow
- { _M_del._M_del(_Base_type::_M_ptr); }
-
- virtual void
- _M_destroy() // nothrow
- {
- _My_alloc_type __a(_M_del);
- this->~_Sp_counted_deleter();
- __a.deallocate(this, 1);
- }
-
- virtual void*
- _M_get_deleter(const std::type_info& __ti)
- { return __ti == typeid(_Deleter) ? &_M_del._M_del : 0; }
-
- private:
- _Sp_counted_deleter(const _Sp_counted_deleter&);
- _Sp_counted_deleter& operator=(const _Sp_counted_deleter&);
-
- protected:
- _My_Deleter _M_del; // copy constructor must not throw
- };
-
- // helpers for make_shared / allocate_shared
-
- template<typename _Tp>
- struct _Sp_destroy_inplace
- {
- void operator()(_Tp* __p) const { if (__p) __p->~_Tp(); }
- };
-
- struct _Sp_make_shared_tag { };
-
- template<typename _Tp, typename _Alloc, _Lock_policy _Lp>
- class _Sp_counted_ptr_inplace
- : public _Sp_counted_deleter<_Tp*, _Sp_destroy_inplace<_Tp>, _Alloc, _Lp>
- {
- typedef _Sp_counted_deleter<_Tp*, _Sp_destroy_inplace<_Tp>, _Alloc, _Lp>
- _Base_type;
-
- public:
- _Sp_counted_ptr_inplace(_Alloc __a)
- : _Base_type(static_cast<_Tp*>(0), _Sp_destroy_inplace<_Tp>(), __a)
- , _M_storage()
- {
- void* __p = &_M_storage;
- ::new (__p) _Tp(); // might throw
- _Base_type::_Base_type::_M_ptr = static_cast<_Tp*>(__p);
- }
-
- template<typename... _Args>
- _Sp_counted_ptr_inplace(_Alloc __a, _Args&&... __args)
- : _Base_type(static_cast<_Tp*>(0), _Sp_destroy_inplace<_Tp>(), __a)
- , _M_storage()
- {
- void* __p = &_M_storage;
- ::new (__p) _Tp(std::forward<_Args>(__args)...); // might throw
- _Base_type::_Base_type::_M_ptr = static_cast<_Tp*>(__p);
- }
-
- // override because the allocator needs to know the dynamic type
- virtual void
- _M_destroy() // nothrow
- {
- typedef typename _Alloc::template
- rebind<_Sp_counted_ptr_inplace>::other _My_alloc_type;
- _My_alloc_type __a(_Base_type::_M_del);
- this->~_Sp_counted_ptr_inplace();
- __a.deallocate(this, 1);
- }
-
- // sneaky trick so __shared_ptr can get the managed pointer
- virtual void*
- _M_get_deleter(const std::type_info& __ti)
- {
- return __ti == typeid(_Sp_make_shared_tag)
- ? static_cast<void*>(&_M_storage)
- : _Base_type::_M_get_deleter(__ti);
- }
-
- private:
- typename aligned_storage<sizeof(_Tp), alignment_of<_Tp>::value>::type
- _M_storage;
- };
-
- template<_Lock_policy _Lp = __default_lock_policy>
- class __weak_count;
-
- template<_Lock_policy _Lp = __default_lock_policy>
- class __shared_count
- {
- public:
- __shared_count()
- : _M_pi(0) // nothrow
- { }
-
- template<typename _Ptr>
- __shared_count(_Ptr __p) : _M_pi(0)
- {
- try
- {
- _M_pi = new _Sp_counted_ptr<_Ptr, _Lp>(__p);
- }
- catch(...)
- {
- delete __p;
- __throw_exception_again;
- }
- }
-
- template<typename _Ptr, typename _Deleter>
- __shared_count(_Ptr __p, _Deleter __d) : _M_pi(0)
- {
- // allocator's value_type doesn't matter, will rebind it anyway
- typedef std::allocator<int> _Alloc;
- typedef _Sp_counted_deleter<_Ptr, _Deleter, _Alloc, _Lp> _Sp_cd_type;
- typedef std::allocator<_Sp_cd_type> _Alloc2;
- _Alloc2 __a2;
- try
- {
- _M_pi = __a2.allocate(1);
- new(static_cast<void*>(_M_pi)) _Sp_cd_type(__p, __d);
- }
- catch(...)
- {
- __d(__p); // Call _Deleter on __p.
- if (_M_pi)
- __a2.deallocate(static_cast<_Sp_cd_type*>(_M_pi), 1);
- __throw_exception_again;
- }
- }
-
- template<typename _Ptr, typename _Deleter, typename _Alloc>
- __shared_count(_Ptr __p, _Deleter __d, _Alloc __a) : _M_pi(0)
- {
- typedef _Sp_counted_deleter<_Ptr, _Deleter, _Alloc, _Lp> _Sp_cd_type;
- typedef typename _Alloc::template rebind<_Sp_cd_type>::other _Alloc2;
- _Alloc2 __a2(__a);
- try
- {
- _M_pi = __a2.allocate(1);
- new(static_cast<void*>(_M_pi)) _Sp_cd_type(__p, __d, __a);
- }
- catch(...)
- {
- __d(__p); // Call _Deleter on __p.
- if (_M_pi)
- __a2.deallocate(static_cast<_Sp_cd_type*>(_M_pi), 1);
- __throw_exception_again;
- }
- }
-
- template<typename _Tp, typename _Alloc, typename... _Args>
- __shared_count(_Sp_make_shared_tag, _Tp*, _Alloc __a, _Args&&... __args)
- : _M_pi(0)
- {
- typedef _Sp_counted_ptr_inplace<_Tp, _Alloc, _Lp> _Sp_cp_type;
- typedef typename _Alloc::template rebind<_Sp_cp_type>::other _Alloc2;
- _Alloc2 __a2(__a);
- try
- {
- _M_pi = __a2.allocate(1);
- new(static_cast<void*>(_M_pi)) _Sp_cp_type(__a,
- std::forward<_Args>(__args)...);
- }
- catch(...)
- {
- if (_M_pi)
- __a2.deallocate(static_cast<_Sp_cp_type*>(_M_pi), 1);
- __throw_exception_again;
- }
- }
-
-#if _GLIBCXX_DEPRECATED
- // Special case for auto_ptr<_Tp> to provide the strong guarantee.
- template<typename _Tp>
- explicit
- __shared_count(std::auto_ptr<_Tp>& __r)
- : _M_pi(new _Sp_counted_ptr<_Tp*, _Lp>(__r.get()))
- { __r.release(); }
-#endif
-
- // Throw bad_weak_ptr when __r._M_get_use_count() == 0.
- explicit
- __shared_count(const __weak_count<_Lp>& __r);
-
- ~__shared_count() // nothrow
- {
- if (_M_pi != 0)
- _M_pi->_M_release();
- }
-
- __shared_count(const __shared_count& __r)
- : _M_pi(__r._M_pi) // nothrow
- {
- if (_M_pi != 0)
- _M_pi->_M_add_ref_copy();
- }
-
- __shared_count&
- operator=(const __shared_count& __r) // nothrow
- {
- _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
- if (__tmp != _M_pi)
- {
- if (__tmp != 0)
- __tmp->_M_add_ref_copy();
- if (_M_pi != 0)
- _M_pi->_M_release();
- _M_pi = __tmp;
- }
- return *this;
- }
-
- void
- _M_swap(__shared_count& __r) // nothrow
- {
- _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
- __r._M_pi = _M_pi;
- _M_pi = __tmp;
- }
-
- long
- _M_get_use_count() const // nothrow
- { return _M_pi != 0 ? _M_pi->_M_get_use_count() : 0; }
-
- bool
- _M_unique() const // nothrow
- { return this->_M_get_use_count() == 1; }
-
- friend inline bool
- operator==(const __shared_count& __a, const __shared_count& __b)
- { return __a._M_pi == __b._M_pi; }
-
- friend inline bool
- operator<(const __shared_count& __a, const __shared_count& __b)
- { return std::less<_Sp_counted_base<_Lp>*>()(__a._M_pi, __b._M_pi); }
-
- void*
- _M_get_deleter(const std::type_info& __ti) const
- { return _M_pi ? _M_pi->_M_get_deleter(__ti) : 0; }
-
- private:
- friend class __weak_count<_Lp>;
-
- _Sp_counted_base<_Lp>* _M_pi;
- };
-}
--- /dev/null
+// <bits/shared_ptr.h> -*- C++ -*-
+
+// Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+// shared_count.hpp
+// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+
+// shared_ptr.hpp
+// Copyright (C) 1998, 1999 Greg Colvin and Beman Dawes.
+// Copyright (C) 2001, 2002, 2003 Peter Dimov
+
+// weak_ptr.hpp
+// Copyright (C) 2001, 2002, 2003 Peter Dimov
+
+// 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)
+
+// GCC Note: based on version 1.32.0 of the Boost library.
+
+/** @file bits/shared_ptr.h
+ * This is an internal header file, included by other library headers.
+ * You should not attempt to use it directly.
+ */
+
+#ifndef __GXX_EXPERIMENTAL_CXX0X__
+# include <c++0x_warning.h>
+#endif
+
+#if defined(_GLIBCXX_INCLUDE_AS_TR1)
+# error C++0x header cannot be included from TR1 header
+#endif
+
+namespace std
+{
+ // counted ptr with no deleter or allocator support
+ template<typename _Ptr, _Lock_policy _Lp>
+ class _Sp_counted_ptr
+ : public _Sp_counted_base<_Lp>
+ {
+ public:
+ _Sp_counted_ptr(_Ptr __p)
+ : _M_ptr(__p) { }
+
+ virtual void
+ _M_dispose() // nothrow
+ { delete _M_ptr; }
+
+ virtual void
+ _M_destroy() // nothrow
+ { delete this; }
+
+ virtual void*
+ _M_get_deleter(const std::type_info& __ti)
+ { return 0; }
+
+ private:
+ _Sp_counted_ptr(const _Sp_counted_ptr&);
+ _Sp_counted_ptr& operator=(const _Sp_counted_ptr&);
+
+ protected:
+ _Ptr _M_ptr; // copy constructor must not throw
+ };
+
+ // support for custom deleter and/or allocator
+ template<typename _Ptr, typename _Deleter, typename _Alloc, _Lock_policy _Lp>
+ class _Sp_counted_deleter
+ : public _Sp_counted_ptr<_Ptr, _Lp>
+ {
+ typedef typename _Alloc::template
+ rebind<_Sp_counted_deleter>::other _My_alloc_type;
+
+ // Helper class that stores the Deleter and also acts as an allocator.
+ // Used to dispose of the owned pointer and the internal refcount
+ // Requires that copies of _Alloc can free each other's memory.
+ struct _My_Deleter
+ : public _My_alloc_type // copy constructor must not throw
+ {
+ _Deleter _M_del; // copy constructor must not throw
+ _My_Deleter(_Deleter __d, const _Alloc& __a)
+ : _My_alloc_type(__a), _M_del(__d) { }
+ };
+
+ protected:
+ typedef _Sp_counted_ptr<_Ptr, _Lp> _Base_type;
+
+ public:
+ /**
+ * @brief
+ * @pre __d(__p) must not throw.
+ */
+ _Sp_counted_deleter(_Ptr __p, _Deleter __d)
+ : _Base_type(__p), _M_del(__d, _Alloc()) { }
+
+ /**
+ * @brief
+ * @pre __d(__p) must not throw.
+ */
+ _Sp_counted_deleter(_Ptr __p, _Deleter __d, const _Alloc& __a)
+ : _Base_type(__p), _M_del(__d, __a) { }
+
+ virtual void
+ _M_dispose() // nothrow
+ { _M_del._M_del(_Base_type::_M_ptr); }
+
+ virtual void
+ _M_destroy() // nothrow
+ {
+ _My_alloc_type __a(_M_del);
+ this->~_Sp_counted_deleter();
+ __a.deallocate(this, 1);
+ }
+
+ virtual void*
+ _M_get_deleter(const std::type_info& __ti)
+ { return __ti == typeid(_Deleter) ? &_M_del._M_del : 0; }
+
+ private:
+ _Sp_counted_deleter(const _Sp_counted_deleter&);
+ _Sp_counted_deleter& operator=(const _Sp_counted_deleter&);
+
+ protected:
+ _My_Deleter _M_del; // copy constructor must not throw
+ };
+
+ // helpers for make_shared / allocate_shared
+
+ template<typename _Tp>
+ struct _Sp_destroy_inplace
+ {
+ void operator()(_Tp* __p) const { if (__p) __p->~_Tp(); }
+ };
+
+ struct _Sp_make_shared_tag { };
+
+ template<typename _Tp, typename _Alloc, _Lock_policy _Lp>
+ class _Sp_counted_ptr_inplace
+ : public _Sp_counted_deleter<_Tp*, _Sp_destroy_inplace<_Tp>, _Alloc, _Lp>
+ {
+ typedef _Sp_counted_deleter<_Tp*, _Sp_destroy_inplace<_Tp>, _Alloc, _Lp>
+ _Base_type;
+
+ public:
+ _Sp_counted_ptr_inplace(_Alloc __a)
+ : _Base_type(static_cast<_Tp*>(0), _Sp_destroy_inplace<_Tp>(), __a)
+ , _M_storage()
+ {
+ void* __p = &_M_storage;
+ ::new (__p) _Tp(); // might throw
+ _Base_type::_Base_type::_M_ptr = static_cast<_Tp*>(__p);
+ }
+
+ template<typename... _Args>
+ _Sp_counted_ptr_inplace(_Alloc __a, _Args&&... __args)
+ : _Base_type(static_cast<_Tp*>(0), _Sp_destroy_inplace<_Tp>(), __a)
+ , _M_storage()
+ {
+ void* __p = &_M_storage;
+ ::new (__p) _Tp(std::forward<_Args>(__args)...); // might throw
+ _Base_type::_Base_type::_M_ptr = static_cast<_Tp*>(__p);
+ }
+
+ // override because the allocator needs to know the dynamic type
+ virtual void
+ _M_destroy() // nothrow
+ {
+ typedef typename _Alloc::template
+ rebind<_Sp_counted_ptr_inplace>::other _My_alloc_type;
+ _My_alloc_type __a(_Base_type::_M_del);
+ this->~_Sp_counted_ptr_inplace();
+ __a.deallocate(this, 1);
+ }
+
+ // sneaky trick so __shared_ptr can get the managed pointer
+ virtual void*
+ _M_get_deleter(const std::type_info& __ti)
+ {
+ return __ti == typeid(_Sp_make_shared_tag)
+ ? static_cast<void*>(&_M_storage)
+ : _Base_type::_M_get_deleter(__ti);
+ }
+
+ private:
+ typename aligned_storage<sizeof(_Tp), alignment_of<_Tp>::value>::type
+ _M_storage;
+ };
+
+ template<_Lock_policy _Lp = __default_lock_policy>
+ class __weak_count;
+
+ template<_Lock_policy _Lp = __default_lock_policy>
+ class __shared_count
+ {
+ public:
+ __shared_count()
+ : _M_pi(0) // nothrow
+ { }
+
+ template<typename _Ptr>
+ __shared_count(_Ptr __p) : _M_pi(0)
+ {
+ try
+ {
+ _M_pi = new _Sp_counted_ptr<_Ptr, _Lp>(__p);
+ }
+ catch(...)
+ {
+ delete __p;
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _Ptr, typename _Deleter>
+ __shared_count(_Ptr __p, _Deleter __d) : _M_pi(0)
+ {
+ // allocator's value_type doesn't matter, will rebind it anyway
+ typedef std::allocator<int> _Alloc;
+ typedef _Sp_counted_deleter<_Ptr, _Deleter, _Alloc, _Lp> _Sp_cd_type;
+ typedef std::allocator<_Sp_cd_type> _Alloc2;
+ _Alloc2 __a2;
+ try
+ {
+ _M_pi = __a2.allocate(1);
+ new(static_cast<void*>(_M_pi)) _Sp_cd_type(__p, __d);
+ }
+ catch(...)
+ {
+ __d(__p); // Call _Deleter on __p.
+ if (_M_pi)
+ __a2.deallocate(static_cast<_Sp_cd_type*>(_M_pi), 1);
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _Ptr, typename _Deleter, typename _Alloc>
+ __shared_count(_Ptr __p, _Deleter __d, _Alloc __a) : _M_pi(0)
+ {
+ typedef _Sp_counted_deleter<_Ptr, _Deleter, _Alloc, _Lp> _Sp_cd_type;
+ typedef typename _Alloc::template rebind<_Sp_cd_type>::other _Alloc2;
+ _Alloc2 __a2(__a);
+ try
+ {
+ _M_pi = __a2.allocate(1);
+ new(static_cast<void*>(_M_pi)) _Sp_cd_type(__p, __d, __a);
+ }
+ catch(...)
+ {
+ __d(__p); // Call _Deleter on __p.
+ if (_M_pi)
+ __a2.deallocate(static_cast<_Sp_cd_type*>(_M_pi), 1);
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _Tp, typename _Alloc, typename... _Args>
+ __shared_count(_Sp_make_shared_tag, _Tp*, _Alloc __a, _Args&&... __args)
+ : _M_pi(0)
+ {
+ typedef _Sp_counted_ptr_inplace<_Tp, _Alloc, _Lp> _Sp_cp_type;
+ typedef typename _Alloc::template rebind<_Sp_cp_type>::other _Alloc2;
+ _Alloc2 __a2(__a);
+ try
+ {
+ _M_pi = __a2.allocate(1);
+ new(static_cast<void*>(_M_pi)) _Sp_cp_type(__a,
+ std::forward<_Args>(__args)...);
+ }
+ catch(...)
+ {
+ if (_M_pi)
+ __a2.deallocate(static_cast<_Sp_cp_type*>(_M_pi), 1);
+ __throw_exception_again;
+ }
+ }
+
+#if _GLIBCXX_DEPRECATED
+ // Special case for auto_ptr<_Tp> to provide the strong guarantee.
+ template<typename _Tp>
+ explicit
+ __shared_count(std::auto_ptr<_Tp>&& __r)
+ : _M_pi(new _Sp_counted_ptr<_Tp*, _Lp>(__r.get()))
+ { __r.release(); }
+#endif
+
+ // Special case for unique_ptr<_Tp,_Del> to provide the strong guarantee.
+ template<typename _Tp, typename _Del>
+ explicit
+ __shared_count(std::unique_ptr<_Tp, _Del>&& __r)
+ : _M_pi(_S_create_from_up(std::move(__r)))
+ { __r.release(); }
+
+ // Throw bad_weak_ptr when __r._M_get_use_count() == 0.
+ explicit
+ __shared_count(const __weak_count<_Lp>& __r);
+
+ ~__shared_count() // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_release();
+ }
+
+ __shared_count(const __shared_count& __r)
+ : _M_pi(__r._M_pi) // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_add_ref_copy();
+ }
+
+ __shared_count&
+ operator=(const __shared_count& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ if (__tmp != _M_pi)
+ {
+ if (__tmp != 0)
+ __tmp->_M_add_ref_copy();
+ if (_M_pi != 0)
+ _M_pi->_M_release();
+ _M_pi = __tmp;
+ }
+ return *this;
+ }
+
+ void
+ _M_swap(__shared_count& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ __r._M_pi = _M_pi;
+ _M_pi = __tmp;
+ }
+
+ long
+ _M_get_use_count() const // nothrow
+ { return _M_pi != 0 ? _M_pi->_M_get_use_count() : 0; }
+
+ bool
+ _M_unique() const // nothrow
+ { return this->_M_get_use_count() == 1; }
+
+ friend inline bool
+ operator==(const __shared_count& __a, const __shared_count& __b)
+ { return __a._M_pi == __b._M_pi; }
+
+ friend inline bool
+ operator<(const __shared_count& __a, const __shared_count& __b)
+ { return std::less<_Sp_counted_base<_Lp>*>()(__a._M_pi, __b._M_pi); }
+
+ void*
+ _M_get_deleter(const std::type_info& __ti) const
+ { return _M_pi ? _M_pi->_M_get_deleter(__ti) : 0; }
+
+ private:
+ friend class __weak_count<_Lp>;
+
+ template<typename _Tp, typename _Del>
+ static _Sp_counted_base<_Lp>*
+ _S_create_from_up(std::unique_ptr<_Tp, _Del>&& __r,
+ typename std::enable_if<!std::is_reference<_Del>::value>::type* = 0)
+ {
+ return new _Sp_counted_deleter<_Tp*, _Del, std::allocator<_Tp>,
+ _Lp>(__r.get(), __r.get_deleter());
+ }
+
+ template<typename _Tp, typename _Del>
+ static _Sp_counted_base<_Lp>*
+ _S_create_from_up(std::unique_ptr<_Tp, _Del>&& __r,
+ typename std::enable_if<std::is_reference<_Del>::value>::type* = 0)
+ {
+ typedef typename std::remove_reference<_Del>::type _Del1;
+ typedef std::reference_wrapper<_Del1> _Del2;
+ return new _Sp_counted_deleter<_Tp*, _Del2, std::allocator<_Tp>,
+ _Lp>(__r.get(), std::ref(__r.get_deleter()));
+ }
+
+ _Sp_counted_base<_Lp>* _M_pi;
+ };
+
+
+ template<_Lock_policy _Lp>
+ class __weak_count
+ {
+ public:
+ __weak_count()
+ : _M_pi(0) // nothrow
+ { }
+
+ __weak_count(const __shared_count<_Lp>& __r)
+ : _M_pi(__r._M_pi) // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_weak_add_ref();
+ }
+
+ __weak_count(const __weak_count<_Lp>& __r)
+ : _M_pi(__r._M_pi) // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_weak_add_ref();
+ }
+
+ ~__weak_count() // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_weak_release();
+ }
+
+ __weak_count<_Lp>&
+ operator=(const __shared_count<_Lp>& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ if (__tmp != 0)
+ __tmp->_M_weak_add_ref();
+ if (_M_pi != 0)
+ _M_pi->_M_weak_release();
+ _M_pi = __tmp;
+ return *this;
+ }
+
+ __weak_count<_Lp>&
+ operator=(const __weak_count<_Lp>& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ if (__tmp != 0)
+ __tmp->_M_weak_add_ref();
+ if (_M_pi != 0)
+ _M_pi->_M_weak_release();
+ _M_pi = __tmp;
+ return *this;
+ }
+
+ void
+ _M_swap(__weak_count<_Lp>& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ __r._M_pi = _M_pi;
+ _M_pi = __tmp;
+ }
+
+ long
+ _M_get_use_count() const // nothrow
+ { return _M_pi != 0 ? _M_pi->_M_get_use_count() : 0; }
+
+ friend inline bool
+ operator==(const __weak_count<_Lp>& __a, const __weak_count<_Lp>& __b)
+ { return __a._M_pi == __b._M_pi; }
+
+ friend inline bool
+ operator<(const __weak_count<_Lp>& __a, const __weak_count<_Lp>& __b)
+ { return std::less<_Sp_counted_base<_Lp>*>()(__a._M_pi, __b._M_pi); }
+
+ private:
+ friend class __shared_count<_Lp>;
+
+ _Sp_counted_base<_Lp>* _M_pi;
+ };
+
+ // now that __weak_count is defined we can define this constructor:
+ template<_Lock_policy _Lp>
+ inline
+ __shared_count<_Lp>::
+ __shared_count(const __weak_count<_Lp>& __r)
+ : _M_pi(__r._M_pi)
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_add_ref_lock();
+ else
+ __throw_bad_weak_ptr();
+ }
+
+ // Forward declarations.
+ template<typename _Tp, _Lock_policy _Lp = __default_lock_policy>
+ class __shared_ptr;
+
+ template<typename _Tp, _Lock_policy _Lp = __default_lock_policy>
+ class __weak_ptr;
+
+ template<typename _Tp, _Lock_policy _Lp = __default_lock_policy>
+ class __enable_shared_from_this;
+
+ template<typename _Tp>
+ class shared_ptr;
+
+ template<typename _Tp>
+ class weak_ptr;
+
+ template<typename _Tp>
+ class enable_shared_from_this;
+
+ // Support for enable_shared_from_this.
+
+ // Friend of __enable_shared_from_this.
+ template<_Lock_policy _Lp, typename _Tp1, typename _Tp2>
+ void
+ __enable_shared_from_this_helper(const __shared_count<_Lp>&,
+ const __enable_shared_from_this<_Tp1,
+ _Lp>*, const _Tp2*);
+
+ // Friend of enable_shared_from_this.
+ template<typename _Tp1, typename _Tp2>
+ void
+ __enable_shared_from_this_helper(const __shared_count<>&,
+ const enable_shared_from_this<_Tp1>*,
+ const _Tp2*);
+
+ template<_Lock_policy _Lp>
+ inline void
+ __enable_shared_from_this_helper(const __shared_count<_Lp>&, ...)
+ { }
+
+
+ /**
+ * @class __shared_ptr
+ *
+ * A smart pointer with reference-counted copy semantics.
+ * The object pointed to is deleted when the last shared_ptr pointing to
+ * it is destroyed or reset.
+ */
+ template<typename _Tp, _Lock_policy _Lp>
+ class __shared_ptr
+ {
+ public:
+ typedef _Tp element_type;
+
+ /** @brief Construct an empty %__shared_ptr.
+ * @post use_count()==0 && get()==0
+ */
+ __shared_ptr()
+ : _M_ptr(0), _M_refcount() // never throws
+ { }
+
+ /** @brief Construct a %__shared_ptr that owns the pointer @a __p.
+ * @param __p A pointer that is convertible to element_type*.
+ * @post use_count() == 1 && get() == __p
+ * @throw std::bad_alloc, in which case @c delete @a __p is called.
+ */
+ template<typename _Tp1>
+ explicit
+ __shared_ptr(_Tp1* __p)
+ : _M_ptr(__p), _M_refcount(__p)
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ // __glibcxx_function_requires(_CompleteConcept<_Tp1*>)
+ __enable_shared_from_this_helper(_M_refcount, __p, __p);
+ }
+
+ //
+ // Requirements: _Deleter's copy constructor and destructor must
+ // not throw
+ //
+ // __shared_ptr will release __p by calling __d(__p)
+ //
+ /** @brief Construct a %__shared_ptr that owns the pointer @a __p
+ * and the deleter @a __d.
+ * @param __p A pointer.
+ * @param __d A deleter.
+ * @post use_count() == 1 && get() == __p
+ * @throw std::bad_alloc, in which case @a __d(__p) is called.
+ */
+ template<typename _Tp1, typename _Deleter>
+ __shared_ptr(_Tp1* __p, _Deleter __d)
+ : _M_ptr(__p), _M_refcount(__p, __d)
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ // TODO requires _Deleter CopyConstructible and __d(__p) well-formed
+ __enable_shared_from_this_helper(_M_refcount, __p, __p);
+ }
+
+ //
+ // Requirements: _Deleter's copy constructor and destructor must
+ // not throw _Alloc's copy constructor and destructor must not
+ // throw.
+ //
+ // __shared_ptr will release __p by calling __d(__p)
+ //
+ /** @brief Construct a %__shared_ptr that owns the pointer @a __p
+ * and the deleter @a __d.
+ * @param __p A pointer.
+ * @param __d A deleter.
+ * @param __a An allocator.
+ * @post use_count() == 1 && get() == __p
+ * @throw std::bad_alloc, in which case @a __d(__p) is called.
+ */
+ template<typename _Tp1, typename _Deleter, typename _Alloc>
+ __shared_ptr(_Tp1* __p, _Deleter __d, const _Alloc& __a)
+ : _M_ptr(__p), _M_refcount(__p, __d, __a)
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ // TODO requires _Deleter CopyConstructible and __d(__p) well-formed
+ __enable_shared_from_this_helper(_M_refcount, __p, __p);
+ }
+
+ /** @brief Constructs a %__shared_ptr instance that stores @a __p
+ * and shares ownership with @a __r.
+ * @param __r A %__shared_ptr.
+ * @param __p A pointer that will remain valid while @a *__r is valid.
+ * @post get() == __p && use_count() == __r.use_count()
+ *
+ * This can be used to construct a @c shared_ptr to a sub-object
+ * of an object managed by an existing @c shared_ptr.
+ *
+ * @code
+ * shared_ptr< pair<int,int> > pii(new pair<int,int>());
+ * shared_ptr<int> pi(pii, &pii->first);
+ * assert(pii.use_count() == 2);
+ * @endcode
+ */
+ template<typename _Tp1>
+ __shared_ptr(const __shared_ptr<_Tp1, _Lp>& __r, _Tp* __p)
+ : _M_ptr(__p), _M_refcount(__r._M_refcount) // never throws
+ { }
+
+ // generated copy constructor, assignment, destructor are fine.
+
+ /** @brief If @a __r is empty, constructs an empty %__shared_ptr;
+ * otherwise construct a %__shared_ptr that shares ownership
+ * with @a __r.
+ * @param __r A %__shared_ptr.
+ * @post get() == __r.get() && use_count() == __r.use_count()
+ */
+ template<typename _Tp1>
+ __shared_ptr(const __shared_ptr<_Tp1, _Lp>& __r)
+ : _M_ptr(__r._M_ptr), _M_refcount(__r._M_refcount) // never throws
+ { __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>) }
+
+ /** @brief Move-constructs a %__shared_ptr instance from @a __r.
+ * @param __r A %__shared_ptr rvalue.
+ * @post *this contains the old value of @a __r, @a __r is empty.
+ */
+ __shared_ptr(__shared_ptr&& __r)
+ : _M_ptr(__r._M_ptr), _M_refcount() // never throws
+ {
+ _M_refcount._M_swap(__r._M_refcount);
+ __r._M_ptr = 0;
+ }
+
+ /** @brief Move-constructs a %__shared_ptr instance from @a __r.
+ * @param __r A %__shared_ptr rvalue.
+ * @post *this contains the old value of @a __r, @a __r is empty.
+ */
+ template<typename _Tp1>
+ __shared_ptr(__shared_ptr<_Tp1, _Lp>&& __r)
+ : _M_ptr(__r._M_ptr), _M_refcount() // never throws
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ _M_refcount._M_swap(__r._M_refcount);
+ __r._M_ptr = 0;
+ }
+
+ /** @brief Constructs a %__shared_ptr that shares ownership with @a __r
+ * and stores a copy of the pointer stored in @a __r.
+ * @param __r A weak_ptr.
+ * @post use_count() == __r.use_count()
+ * @throw bad_weak_ptr when __r.expired(),
+ * in which case the constructor has no effect.
+ */
+ template<typename _Tp1>
+ explicit
+ __shared_ptr(const __weak_ptr<_Tp1, _Lp>& __r)
+ : _M_refcount(__r._M_refcount) // may throw
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ // It is now safe to copy __r._M_ptr, as _M_refcount(__r._M_refcount)
+ // did not throw.
+ _M_ptr = __r._M_ptr;
+ }
+
+ template<typename _Tp1, typename _Del>
+ explicit
+ __shared_ptr(const std::unique_ptr<_Tp1, _Del>&) = delete;
+
+ /**
+ * If an exception is thrown this constructor has no effect.
+ */
+ template<typename _Tp1, typename _Del>
+ explicit
+ __shared_ptr(std::unique_ptr<_Tp1, _Del>&& __r)
+ : _M_ptr(__r.get()), _M_refcount()
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ _Tp1* __tmp = __r.get();
+ _M_refcount = __shared_count<_Lp>(std::move(__r));
+ __enable_shared_from_this_helper(_M_refcount, __tmp, __tmp);
+ }
+
+#if _GLIBCXX_DEPRECATED
+ /**
+ * @post use_count() == 1 and __r.get() == 0
+ */
+ template<typename _Tp1>
+ explicit
+ __shared_ptr(std::auto_ptr<_Tp1>&& __r)
+ : _M_ptr(__r.get()), _M_refcount()
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ // TODO requires _Tp1 is complete, delete __r.release() well-formed
+ _Tp1* __tmp = __r.get();
+ _M_refcount = __shared_count<_Lp>(std::move(__r));
+ __enable_shared_from_this_helper(_M_refcount, __tmp, __tmp);
+ }
+#endif
+
+ template<typename _Tp1>
+ __shared_ptr&
+ operator=(const __shared_ptr<_Tp1, _Lp>& __r) // never throws
+ {
+ _M_ptr = __r._M_ptr;
+ _M_refcount = __r._M_refcount; // __shared_count::op= doesn't throw
+ return *this;
+ }
+
+#if _GLIBCXX_DEPRECATED
+ template<typename _Tp1>
+ __shared_ptr&
+ operator=(std::auto_ptr<_Tp1>&& __r)
+ {
+ __shared_ptr(std::move(__r)).swap(*this);
+ return *this;
+ }
+#endif
+
+ __shared_ptr&
+ operator=(__shared_ptr&& __r)
+ {
+ __shared_ptr(std::move(__r)).swap(*this);
+ return *this;
+ }
+
+ template<class _Tp1>
+ __shared_ptr&
+ operator=(__shared_ptr<_Tp1, _Lp>&& __r)
+ {
+ __shared_ptr(std::move(__r)).swap(*this);
+ return *this;
+ }
+
+ template<typename _Tp1, typename _Del>
+ __shared_ptr&
+ operator=(const std::unique_ptr<_Tp1, _Del>& __r) = delete;
+
+ template<typename _Tp1, typename _Del>
+ __shared_ptr&
+ operator=(std::unique_ptr<_Tp1, _Del>&& __r)
+ {
+ __shared_ptr(std::move(__r)).swap(*this);
+ return *this;
+ }
+
+ void
+ reset() // never throws
+ { __shared_ptr().swap(*this); }
+
+ template<typename _Tp1>
+ void
+ reset(_Tp1* __p) // _Tp1 must be complete.
+ {
+ // Catch self-reset errors.
+ _GLIBCXX_DEBUG_ASSERT(__p == 0 || __p != _M_ptr);
+ __shared_ptr(__p).swap(*this);
+ }
+
+ template<typename _Tp1, typename _Deleter>
+ void
+ reset(_Tp1* __p, _Deleter __d)
+ { __shared_ptr(__p, __d).swap(*this); }
+
+ template<typename _Tp1, typename _Deleter, typename _Alloc>
+ void
+ reset(_Tp1* __p, _Deleter __d, const _Alloc& __a)
+ { __shared_ptr(__p, __d, __a).swap(*this); }
+
+ // Allow class instantiation when _Tp is [cv-qual] void.
+ typename std::add_lvalue_reference<_Tp>::type
+ operator*() const // never throws
+ {
+ _GLIBCXX_DEBUG_ASSERT(_M_ptr != 0);
+ return *_M_ptr;
+ }
+
+ _Tp*
+ operator->() const // never throws
+ {
+ _GLIBCXX_DEBUG_ASSERT(_M_ptr != 0);
+ return _M_ptr;
+ }
+
+ _Tp*
+ get() const // never throws
+ { return _M_ptr; }
+
+ // Implicit conversion to "bool"
+ private:
+ typedef _Tp* __shared_ptr::*__unspecified_bool_type;
+
+ public:
+ operator __unspecified_bool_type() const // never throws
+ { return _M_ptr == 0 ? 0 : &__shared_ptr::_M_ptr; }
+
+ bool
+ unique() const // never throws
+ { return _M_refcount._M_unique(); }
+
+ long
+ use_count() const // never throws
+ { return _M_refcount._M_get_use_count(); }
+
+ void
+ swap(__shared_ptr<_Tp, _Lp>&& __other) // never throws
+ {
+ std::swap(_M_ptr, __other._M_ptr);
+ _M_refcount._M_swap(__other._M_refcount);
+ }
+
+ protected:
+ // This constructor is non-standard, it is used by allocate_shared.
+ template<typename _Alloc, typename... _Args>
+ __shared_ptr(_Sp_make_shared_tag __tag, _Alloc __a, _Args&&... __args)
+ : _M_ptr(), _M_refcount(__tag, (_Tp*)0, __a,
+ std::forward<_Args>(__args)...)
+ {
+ // _M_ptr needs to point to the newly constructed object.
+ // This relies on _Sp_counted_ptr_inplace::_M_get_deleter.
+ void* __p = _M_refcount._M_get_deleter(typeid(__tag));
+ _M_ptr = static_cast<_Tp*>(__p);
+ __enable_shared_from_this_helper(_M_refcount, _M_ptr, _M_ptr);
+ }
+
+ template<typename _Tp1, _Lock_policy _Lp1, typename _Alloc,
+ typename... _Args>
+ friend __shared_ptr<_Tp1, _Lp1>
+ __allocate_shared(_Alloc __a, _Args&&... __args);
+
+ private:
+ void*
+ _M_get_deleter(const std::type_info& __ti) const
+ { return _M_refcount._M_get_deleter(__ti); }
+
+ template<typename _Tp1, _Lock_policy _Lp1>
+ bool
+ _M_less(const __shared_ptr<_Tp1, _Lp1>& __rhs) const
+ { return _M_refcount < __rhs._M_refcount; }
+
+ template<typename _Tp1, _Lock_policy _Lp1> friend class __shared_ptr;
+ template<typename _Tp1, _Lock_policy _Lp1> friend class __weak_ptr;
+
+ template<typename _Del, typename _Tp1, _Lock_policy _Lp1>
+ friend _Del* get_deleter(const __shared_ptr<_Tp1, _Lp1>&);
+
+ // Friends injected into enclosing namespace and found by ADL:
+ template<typename _Tp1>
+ friend inline bool
+ operator==(const __shared_ptr& __a, const __shared_ptr<_Tp1, _Lp>& __b)
+ { return __a.get() == __b.get(); }
+
+ template<typename _Tp1>
+ friend inline bool
+ operator!=(const __shared_ptr& __a, const __shared_ptr<_Tp1, _Lp>& __b)
+ { return __a.get() != __b.get(); }
+
+ template<typename _Tp1>
+ friend inline bool
+ operator<(const __shared_ptr& __a, const __shared_ptr<_Tp1, _Lp>& __b)
+ { return __a._M_less(__b); }
+
+ _Tp* _M_ptr; // Contained pointer.
+ __shared_count<_Lp> _M_refcount; // Reference counter.
+ };
+
+ // 2.2.3.8 shared_ptr specialized algorithms.
+ template<typename _Tp, _Lock_policy _Lp>
+ inline void
+ swap(__shared_ptr<_Tp, _Lp>& __a, __shared_ptr<_Tp, _Lp>& __b)
+ { __a.swap(__b); }
+
+ template<typename _Tp, _Lock_policy _Lp>
+ inline void
+ swap(__shared_ptr<_Tp, _Lp>&& __a, __shared_ptr<_Tp, _Lp>& __b)
+ { __a.swap(__b); }
+
+ template<typename _Tp, _Lock_policy _Lp>
+ inline void
+ swap(__shared_ptr<_Tp, _Lp>& __a, __shared_ptr<_Tp, _Lp>&& __b)
+ { __a.swap(__b); }
+
+ // 2.2.3.9 shared_ptr casts
+ /** @warning The seemingly equivalent
+ * <code>shared_ptr<_Tp, _Lp>(static_cast<_Tp*>(__r.get()))</code>
+ * will eventually result in undefined behaviour,
+ * attempting to delete the same object twice.
+ */
+ template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
+ inline __shared_ptr<_Tp, _Lp>
+ static_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r)
+ { return __shared_ptr<_Tp, _Lp>(__r, static_cast<_Tp*>(__r.get())); }
+
+ /** @warning The seemingly equivalent
+ * <code>shared_ptr<_Tp, _Lp>(const_cast<_Tp*>(__r.get()))</code>
+ * will eventually result in undefined behaviour,
+ * attempting to delete the same object twice.
+ */
+ template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
+ inline __shared_ptr<_Tp, _Lp>
+ const_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r)
+ { return __shared_ptr<_Tp, _Lp>(__r, const_cast<_Tp*>(__r.get())); }
+
+ /** @warning The seemingly equivalent
+ * <code>shared_ptr<_Tp, _Lp>(dynamic_cast<_Tp*>(__r.get()))</code>
+ * will eventually result in undefined behaviour,
+ * attempting to delete the same object twice.
+ */
+ template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
+ inline __shared_ptr<_Tp, _Lp>
+ dynamic_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r)
+ {
+ if (_Tp* __p = dynamic_cast<_Tp*>(__r.get()))
+ return __shared_ptr<_Tp, _Lp>(__r, __p);
+ return __shared_ptr<_Tp, _Lp>();
+ }
+
+ // 2.2.3.7 shared_ptr I/O
+ template<typename _Ch, typename _Tr, typename _Tp, _Lock_policy _Lp>
+ std::basic_ostream<_Ch, _Tr>&
+ operator<<(std::basic_ostream<_Ch, _Tr>& __os,
+ const __shared_ptr<_Tp, _Lp>& __p)
+ {
+ __os << __p.get();
+ return __os;
+ }
+
+ // 2.2.3.10 shared_ptr get_deleter (experimental)
+ template<typename _Del, typename _Tp, _Lock_policy _Lp>
+ inline _Del*
+ get_deleter(const __shared_ptr<_Tp, _Lp>& __p)
+ { return static_cast<_Del*>(__p._M_get_deleter(typeid(_Del))); }
+
+
+ template<typename _Tp, _Lock_policy _Lp>
+ class __weak_ptr
+ {
+ public:
+ typedef _Tp element_type;
+
+ __weak_ptr()
+ : _M_ptr(0), _M_refcount() // never throws
+ { }
+
+ // Generated copy constructor, assignment, destructor are fine.
+
+ // The "obvious" converting constructor implementation:
+ //
+ // template<typename _Tp1>
+ // __weak_ptr(const __weak_ptr<_Tp1, _Lp>& __r)
+ // : _M_ptr(__r._M_ptr), _M_refcount(__r._M_refcount) // never throws
+ // { }
+ //
+ // has a serious problem.
+ //
+ // __r._M_ptr may already have been invalidated. The _M_ptr(__r._M_ptr)
+ // conversion may require access to *__r._M_ptr (virtual inheritance).
+ //
+ // It is not possible to avoid spurious access violations since
+ // in multithreaded programs __r._M_ptr may be invalidated at any point.
+ template<typename _Tp1>
+ __weak_ptr(const __weak_ptr<_Tp1, _Lp>& __r)
+ : _M_refcount(__r._M_refcount) // never throws
+ {
+ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
+ _M_ptr = __r.lock().get();
+ }
+
+ template<typename _Tp1>
+ __weak_ptr(const __shared_ptr<_Tp1, _Lp>& __r)
+ : _M_ptr(__r._M_ptr), _M_refcount(__r._M_refcount) // never throws
+ { __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>) }
+
+ template<typename _Tp1>
+ __weak_ptr&
+ operator=(const __weak_ptr<_Tp1, _Lp>& __r) // never throws
+ {
+ _M_ptr = __r.lock().get();
+ _M_refcount = __r._M_refcount;
+ return *this;
+ }
+
+ template<typename _Tp1>
+ __weak_ptr&
+ operator=(const __shared_ptr<_Tp1, _Lp>& __r) // never throws
+ {
+ _M_ptr = __r._M_ptr;
+ _M_refcount = __r._M_refcount;
+ return *this;
+ }
+
+ __shared_ptr<_Tp, _Lp>
+ lock() const // never throws
+ {
+#ifdef __GTHREADS
+ // Optimization: avoid throw overhead.
+ if (expired())
+ return __shared_ptr<element_type, _Lp>();
+
+ try
+ {
+ return __shared_ptr<element_type, _Lp>(*this);
+ }
+ catch(const bad_weak_ptr&)
+ {
+ // Q: How can we get here?
+ // A: Another thread may have invalidated r after the
+ // use_count test above.
+ return __shared_ptr<element_type, _Lp>();
+ }
+
+#else
+ // Optimization: avoid try/catch overhead when single threaded.
+ return expired() ? __shared_ptr<element_type, _Lp>()
+ : __shared_ptr<element_type, _Lp>(*this);
+
+#endif
+ } // XXX MT
+
+ long
+ use_count() const // never throws
+ { return _M_refcount._M_get_use_count(); }
+
+ bool
+ expired() const // never throws
+ { return _M_refcount._M_get_use_count() == 0; }
+
+ void
+ reset() // never throws
+ { __weak_ptr().swap(*this); }
+
+ void
+ swap(__weak_ptr& __s) // never throws
+ {
+ std::swap(_M_ptr, __s._M_ptr);
+ _M_refcount._M_swap(__s._M_refcount);
+ }
+
+ private:
+ // Used by __enable_shared_from_this.
+ void
+ _M_assign(_Tp* __ptr, const __shared_count<_Lp>& __refcount)
+ {
+ _M_ptr = __ptr;
+ _M_refcount = __refcount;
+ }
+
+ template<typename _Tp1>
+ bool
+ _M_less(const __weak_ptr<_Tp1, _Lp>& __rhs) const
+ { return _M_refcount < __rhs._M_refcount; }
+
+ template<typename _Tp1, _Lock_policy _Lp1> friend class __shared_ptr;
+ template<typename _Tp1, _Lock_policy _Lp1> friend class __weak_ptr;
+ friend class __enable_shared_from_this<_Tp, _Lp>;
+ friend class enable_shared_from_this<_Tp>;
+
+ // Friend injected into namespace and found by ADL.
+ template<typename _Tp1>
+ friend inline bool
+ operator<(const __weak_ptr& __lhs, const __weak_ptr<_Tp1, _Lp>& __rhs)
+ { return __lhs._M_less(__rhs); }
+
+ _Tp* _M_ptr; // Contained pointer.
+ __weak_count<_Lp> _M_refcount; // Reference counter.
+ };
+
+ // 2.2.4.7 weak_ptr specialized algorithms.
+ template<typename _Tp, _Lock_policy _Lp>
+ inline void
+ swap(__weak_ptr<_Tp, _Lp>& __a, __weak_ptr<_Tp, _Lp>& __b)
+ { __a.swap(__b); }
+
+
+ template<typename _Tp, _Lock_policy _Lp>
+ class __enable_shared_from_this
+ {
+ protected:
+ __enable_shared_from_this() { }
+
+ __enable_shared_from_this(const __enable_shared_from_this&) { }
+
+ __enable_shared_from_this&
+ operator=(const __enable_shared_from_this&)
+ { return *this; }
+
+ ~__enable_shared_from_this() { }
+
+ public:
+ __shared_ptr<_Tp, _Lp>
+ shared_from_this()
+ { return __shared_ptr<_Tp, _Lp>(this->_M_weak_this); }
+
+ __shared_ptr<const _Tp, _Lp>
+ shared_from_this() const
+ { return __shared_ptr<const _Tp, _Lp>(this->_M_weak_this); }
+
+ private:
+ template<typename _Tp1>
+ void
+ _M_weak_assign(_Tp1* __p, const __shared_count<_Lp>& __n) const
+ { _M_weak_this._M_assign(__p, __n); }
+
+ template<typename _Tp1>
+ friend void
+ __enable_shared_from_this_helper(const __shared_count<_Lp>& __pn,
+ const __enable_shared_from_this* __pe,
+ const _Tp1* __px)
+ {
+ if (__pe != 0)
+ __pe->_M_weak_assign(const_cast<_Tp1*>(__px), __pn);
+ }
+
+ mutable __weak_ptr<_Tp, _Lp> _M_weak_this;
+ };
+
+
+ /// shared_ptr
+ // The actual shared_ptr, with forwarding constructors and
+ // assignment operators.
+ template<typename _Tp>
+ class shared_ptr
+ : public __shared_ptr<_Tp>
+ {
+ public:
+ shared_ptr()
+ : __shared_ptr<_Tp>() { }
+
+ template<typename _Tp1>
+ explicit
+ shared_ptr(_Tp1* __p)
+ : __shared_ptr<_Tp>(__p) { }
+
+ template<typename _Tp1, typename _Deleter>
+ shared_ptr(_Tp1* __p, _Deleter __d)
+ : __shared_ptr<_Tp>(__p, __d) { }
+
+ template<typename _Tp1, typename _Deleter, typename _Alloc>
+ shared_ptr(_Tp1* __p, _Deleter __d, const _Alloc& __a)
+ : __shared_ptr<_Tp>(__p, __d, __a) { }
+
+ // Aliasing constructor
+ template<typename _Tp1>
+ shared_ptr(const shared_ptr<_Tp1>& __r, _Tp* __p)
+ : __shared_ptr<_Tp>(__r, __p) { }
+
+ template<typename _Tp1>
+ shared_ptr(const shared_ptr<_Tp1>& __r)
+ : __shared_ptr<_Tp>(__r) { }
+
+ shared_ptr(shared_ptr&& __r)
+ : __shared_ptr<_Tp>(std::move(__r)) { }
+
+ template<typename _Tp1>
+ shared_ptr(shared_ptr<_Tp1>&& __r)
+ : __shared_ptr<_Tp>(std::move(__r)) { }
+
+ template<typename _Tp1>
+ explicit
+ shared_ptr(const weak_ptr<_Tp1>& __r)
+ : __shared_ptr<_Tp>(__r) { }
+
+#if _GLIBCXX_DEPRECATED
+ template<typename _Tp1>
+ explicit
+ shared_ptr(std::auto_ptr<_Tp1>&& __r)
+ : __shared_ptr<_Tp>(std::move(__r)) { }
+#endif
+
+ template<typename _Tp1, typename _Del>
+ explicit
+ shared_ptr(const std::unique_ptr<_Tp1, _Del>&) = delete;
+
+ template<typename _Tp1, typename _Del>
+ explicit
+ shared_ptr(std::unique_ptr<_Tp1, _Del>&& __r)
+ : __shared_ptr<_Tp>(std::move(__r)) { }
+
+ template<typename _Tp1>
+ shared_ptr&
+ operator=(const shared_ptr<_Tp1>& __r) // never throws
+ {
+ this->__shared_ptr<_Tp>::operator=(__r);
+ return *this;
+ }
+
+#if _GLIBCXX_DEPRECATED
+ template<typename _Tp1>
+ shared_ptr&
+ operator=(std::auto_ptr<_Tp1>&& __r)
+ {
+ this->__shared_ptr<_Tp>::operator=(std::move(__r));
+ return *this;
+ }
+#endif
+
+ shared_ptr&
+ operator=(shared_ptr&& __r)
+ {
+ this->__shared_ptr<_Tp>::operator=(std::move(__r));
+ return *this;
+ }
+
+ template<class _Tp1>
+ shared_ptr&
+ operator=(shared_ptr<_Tp1>&& __r)
+ {
+ this->__shared_ptr<_Tp>::operator=(std::move(__r));
+ return *this;
+ }
+
+ template<typename _Tp1, typename _Del>
+ shared_ptr&
+ operator=(const std::unique_ptr<_Tp1, _Del>& __r) = delete;
+
+ template<typename _Tp1, typename _Del>
+ shared_ptr&
+ operator=(std::unique_ptr<_Tp1, _Del>&& __r)
+ {
+ this->__shared_ptr<_Tp>::operator=(std::move(__r));
+ return *this;
+ }
+
+ private:
+ // This constructor is non-standard, it is used by allocate_shared.
+ template<typename _Alloc, typename... _Args>
+ shared_ptr(_Sp_make_shared_tag __tag, _Alloc __a, _Args&&... __args)
+ : __shared_ptr<_Tp>(__tag, __a, std::forward<_Args>(__args)...)
+ { }
+
+ template<typename _Tp1, typename _Alloc, typename... _Args>
+ friend shared_ptr<_Tp1>
+ allocate_shared(_Alloc __a, _Args&&... __args);
+ };
+
+ // 20.7.12.2.9 shared_ptr specialized algorithms.
+ template<typename _Tp>
+ inline void
+ swap(__shared_ptr<_Tp>& __a, __shared_ptr<_Tp>& __b)
+ { __a.swap(__b); }
+
+ template<typename _Tp>
+ inline void
+ swap(__shared_ptr<_Tp>&& __a, __shared_ptr<_Tp>& __b)
+ { __a.swap(__b); }
+
+ template<typename _Tp>
+ inline void
+ swap(__shared_ptr<_Tp>& __a, __shared_ptr<_Tp>&& __b)
+ { __a.swap(__b); }
+
+ template<typename _Tp, typename _Tp1>
+ inline shared_ptr<_Tp>
+ static_pointer_cast(const shared_ptr<_Tp1>& __r)
+ { return shared_ptr<_Tp>(__r, static_cast<_Tp*>(__r.get())); }
+
+ template<typename _Tp, typename _Tp1>
+ inline shared_ptr<_Tp>
+ const_pointer_cast(const shared_ptr<_Tp1>& __r)
+ { return shared_ptr<_Tp>(__r, const_cast<_Tp*>(__r.get())); }
+
+ template<typename _Tp, typename _Tp1>
+ inline shared_ptr<_Tp>
+ dynamic_pointer_cast(const shared_ptr<_Tp1>& __r)
+ {
+ if (_Tp* __p = dynamic_cast<_Tp*>(__r.get()))
+ return shared_ptr<_Tp>(__r, __p);
+ return shared_ptr<_Tp>();
+ }
+
+
+ /// weak_ptr
+ // The actual weak_ptr, with forwarding constructors and
+ // assignment operators.
+ template<typename _Tp>
+ class weak_ptr
+ : public __weak_ptr<_Tp>
+ {
+ public:
+ weak_ptr()
+ : __weak_ptr<_Tp>() { }
+
+ template<typename _Tp1>
+ weak_ptr(const weak_ptr<_Tp1>& __r)
+ : __weak_ptr<_Tp>(__r) { }
+
+ template<typename _Tp1>
+ weak_ptr(const shared_ptr<_Tp1>& __r)
+ : __weak_ptr<_Tp>(__r) { }
+
+ template<typename _Tp1>
+ weak_ptr&
+ operator=(const weak_ptr<_Tp1>& __r) // never throws
+ {
+ this->__weak_ptr<_Tp>::operator=(__r);
+ return *this;
+ }
+
+ template<typename _Tp1>
+ weak_ptr&
+ operator=(const shared_ptr<_Tp1>& __r) // never throws
+ {
+ this->__weak_ptr<_Tp>::operator=(__r);
+ return *this;
+ }
+
+ shared_ptr<_Tp>
+ lock() const // never throws
+ {
+#ifdef __GTHREADS
+ if (this->expired())
+ return shared_ptr<_Tp>();
+
+ try
+ {
+ return shared_ptr<_Tp>(*this);
+ }
+ catch(const bad_weak_ptr&)
+ {
+ return shared_ptr<_Tp>();
+ }
+#else
+ return this->expired() ? shared_ptr<_Tp>()
+ : shared_ptr<_Tp>(*this);
+#endif
+ }
+ };
+
+ /// enable_shared_from_this
+ template<typename _Tp>
+ class enable_shared_from_this
+ {
+ protected:
+ enable_shared_from_this() { }
+
+ enable_shared_from_this(const enable_shared_from_this&) { }
+
+ enable_shared_from_this&
+ operator=(const enable_shared_from_this&)
+ { return *this; }
+
+ ~enable_shared_from_this() { }
+
+ public:
+ shared_ptr<_Tp>
+ shared_from_this()
+ { return shared_ptr<_Tp>(this->_M_weak_this); }
+
+ shared_ptr<const _Tp>
+ shared_from_this() const
+ { return shared_ptr<const _Tp>(this->_M_weak_this); }
+
+ private:
+ template<typename _Tp1>
+ void
+ _M_weak_assign(_Tp1* __p, const __shared_count<>& __n) const
+ { _M_weak_this._M_assign(__p, __n); }
+
+ template<typename _Tp1>
+ friend void
+ __enable_shared_from_this_helper(const __shared_count<>& __pn,
+ const enable_shared_from_this* __pe,
+ const _Tp1* __px)
+ {
+ if (__pe != 0)
+ __pe->_M_weak_assign(const_cast<_Tp1*>(__px), __pn);
+ }
+
+ mutable weak_ptr<_Tp> _M_weak_this;
+ };
+
+ template<typename _Tp, _Lock_policy _Lp, typename _Alloc, typename... _Args>
+ inline __shared_ptr<_Tp, _Lp>
+ __allocate_shared(_Alloc __a, _Args&&... __args)
+ {
+ return __shared_ptr<_Tp, _Lp>(_Sp_make_shared_tag(),
+ std::forward<_Alloc>(__a), std::forward<_Args>(__args)...);
+ }
+
+ template<typename _Tp, _Lock_policy _Lp, typename... _Args>
+ inline __shared_ptr<_Tp, _Lp>
+ __make_shared(_Args&&... __args)
+ {
+ typedef typename std::remove_const<_Tp>::type _Tp_nc;
+ return __allocate_shared<_Tp, _Lp>(std::allocator<_Tp_nc>(),
+ std::forward<_Args>(__args)...);
+ }
+
+ /** @brief Create an object that is owned by a shared_ptr.
+ * @param __a An allocator.
+ * @param __args Arguments for the @a _Tp object's constructor.
+ * @return A shared_ptr that owns the newly created object.
+ * @throw An exception thrown from @a _Alloc::allocate or from the
+ * constructor of @a _Tp.
+ *
+ * A copy of @a __a will be used to allocate memory for the shared_ptr
+ * and the new object.
+ */
+ template<typename _Tp, typename _Alloc, typename... _Args>
+ inline shared_ptr<_Tp>
+ allocate_shared(_Alloc __a, _Args&&... __args)
+ {
+ return shared_ptr<_Tp>(_Sp_make_shared_tag(), std::forward<_Alloc>(__a),
+ std::forward<_Args>(__args)...);
+ }
+
+ /** @brief Create an object that is owned by a shared_ptr.
+ * @param __args Arguments for the @a _Tp object's constructor.
+ * @return A shared_ptr that owns the newly created object.
+ * @throw std::bad_alloc, or an exception thrown from the
+ * constructor of @a _Tp.
+ */
+ template<typename _Tp, typename... _Args>
+ inline shared_ptr<_Tp>
+ make_shared(_Args&&... __args)
+ {
+ typedef typename std::remove_const<_Tp>::type _Tp_nc;
+ return allocate_shared<_Tp>(std::allocator<_Tp_nc>(),
+ std::forward<_Args>(__args)...);
+ }
+
+}
# include <bits/unique_ptr.h>
# include <debug/debug.h>
# include <type_traits>
+# include <functional>
# if _GLIBCXX_DEPRECATED
# include <backward/auto_ptr.h>
# endif
# if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
# include <tr1_impl/boost_sp_counted_base.h>
-# include <bits/boost_sp_shared_count.h>
-# include <tr1_impl/boost_shared_ptr.h>
+# include <bits/shared_ptr.h>
# else
# define _GLIBCXX_INCLUDE_AS_CXX0X
# define _GLIBCXX_BEGIN_NAMESPACE_TR1
# define _GLIBCXX_END_NAMESPACE_TR1
# define _GLIBCXX_TR1
# include <tr1_impl/boost_sp_counted_base.h>
-# include <bits/boost_sp_shared_count.h>
-# include <tr1_impl/boost_shared_ptr.h>
+# include <bits/shared_ptr.h>
# undef _GLIBCXX_TR1
# undef _GLIBCXX_END_NAMESPACE_TR1
# undef _GLIBCXX_BEGIN_NAMESPACE_TR1
+++ /dev/null
-// <tr1/boost_sp_shared_count.h> -*- C++ -*-
-
-// Copyright (C) 2007 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library. This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-// shared_count.hpp
-// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
-
-// shared_ptr.hpp
-// Copyright (C) 1998, 1999 Greg Colvin and Beman Dawes.
-// Copyright (C) 2001, 2002, 2003 Peter Dimov
-
-// weak_ptr.hpp
-// Copyright (C) 2001, 2002, 2003 Peter Dimov
-
-// 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)
-
-// GCC Note: based on version 1.32.0 of the Boost library.
-
-/** @file tr1/boost_sp_shared_count.h
- * This is an internal header file, included by other library headers.
- * You should not attempt to use it directly.
- */
-
-#if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
-# error TR1 header cannot be included from C++0x header
-#endif
-
-namespace std
-{
-namespace tr1
-{
-
- template<typename _Ptr, typename _Deleter, _Lock_policy _Lp>
- class _Sp_counted_base_impl
- : public _Sp_counted_base<_Lp>
- {
- public:
- /**
- * @brief
- * @pre __d(__p) must not throw.
- */
- _Sp_counted_base_impl(_Ptr __p, _Deleter __d)
- : _M_ptr(__p), _M_del(__d) { }
-
- virtual void
- _M_dispose() // nothrow
- { _M_del(_M_ptr); }
-
- virtual void*
- _M_get_deleter(const std::type_info& __ti)
- { return __ti == typeid(_Deleter) ? &_M_del : 0; }
-
- private:
- _Sp_counted_base_impl(const _Sp_counted_base_impl&);
- _Sp_counted_base_impl& operator=(const _Sp_counted_base_impl&);
-
- _Ptr _M_ptr; // copy constructor must not throw
- _Deleter _M_del; // copy constructor must not throw
- };
-
- template<_Lock_policy _Lp = __default_lock_policy>
- class __weak_count;
-
- template<typename _Tp>
- struct _Sp_deleter
- {
- typedef void result_type;
- typedef _Tp* argument_type;
- void operator()(_Tp* __p) const { delete __p; }
- };
-
- template<_Lock_policy _Lp = __default_lock_policy>
- class __shared_count
- {
- public:
- __shared_count()
- : _M_pi(0) // nothrow
- { }
-
- template<typename _Ptr>
- __shared_count(_Ptr __p) : _M_pi(0)
- {
- try
- {
- typedef typename std::tr1::remove_pointer<_Ptr>::type _Tp;
- _M_pi = new _Sp_counted_base_impl<_Ptr, _Sp_deleter<_Tp>, _Lp>(
- __p, _Sp_deleter<_Tp>());
- }
- catch(...)
- {
- delete __p;
- __throw_exception_again;
- }
- }
-
- template<typename _Ptr, typename _Deleter>
- __shared_count(_Ptr __p, _Deleter __d) : _M_pi(0)
- {
- try
- {
- _M_pi = new _Sp_counted_base_impl<_Ptr, _Deleter, _Lp>(__p, __d);
- }
- catch(...)
- {
- __d(__p); // Call _Deleter on __p.
- __throw_exception_again;
- }
- }
-
- // Special case for auto_ptr<_Tp> to provide the strong guarantee.
- template<typename _Tp>
- explicit
- __shared_count(std::auto_ptr<_Tp>& __r)
- : _M_pi(new _Sp_counted_base_impl<_Tp*,
- _Sp_deleter<_Tp>, _Lp >(__r.get(), _Sp_deleter<_Tp>()))
- { __r.release(); }
-
- // Throw bad_weak_ptr when __r._M_get_use_count() == 0.
- explicit
- __shared_count(const __weak_count<_Lp>& __r);
-
- ~__shared_count() // nothrow
- {
- if (_M_pi != 0)
- _M_pi->_M_release();
- }
-
- __shared_count(const __shared_count& __r)
- : _M_pi(__r._M_pi) // nothrow
- {
- if (_M_pi != 0)
- _M_pi->_M_add_ref_copy();
- }
-
- __shared_count&
- operator=(const __shared_count& __r) // nothrow
- {
- _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
- if (__tmp != _M_pi)
- {
- if (__tmp != 0)
- __tmp->_M_add_ref_copy();
- if (_M_pi != 0)
- _M_pi->_M_release();
- _M_pi = __tmp;
- }
- return *this;
- }
-
- void
- _M_swap(__shared_count& __r) // nothrow
- {
- _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
- __r._M_pi = _M_pi;
- _M_pi = __tmp;
- }
-
- long
- _M_get_use_count() const // nothrow
- { return _M_pi != 0 ? _M_pi->_M_get_use_count() : 0; }
-
- bool
- _M_unique() const // nothrow
- { return this->_M_get_use_count() == 1; }
-
- friend inline bool
- operator==(const __shared_count& __a, const __shared_count& __b)
- { return __a._M_pi == __b._M_pi; }
-
- friend inline bool
- operator<(const __shared_count& __a, const __shared_count& __b)
- { return std::less<_Sp_counted_base<_Lp>*>()(__a._M_pi, __b._M_pi); }
-
- void*
- _M_get_deleter(const std::type_info& __ti) const
- { return _M_pi ? _M_pi->_M_get_deleter(__ti) : 0; }
-
- private:
- friend class __weak_count<_Lp>;
-
- _Sp_counted_base<_Lp>* _M_pi;
- };
-}
-}
#if defined(_GLIBCXX_INCLUDE_AS_TR1)
# include <tr1_impl/boost_sp_counted_base.h>
-# include <tr1/boost_sp_shared_count.h>
-# include <tr1_impl/boost_shared_ptr.h>
+# include <tr1/shared_ptr.h>
#else
# define _GLIBCXX_INCLUDE_AS_TR1
# define _GLIBCXX_BEGIN_NAMESPACE_TR1 namespace tr1 {
# define _GLIBCXX_END_NAMESPACE_TR1 }
# define _GLIBCXX_TR1 tr1::
# include <tr1_impl/boost_sp_counted_base.h>
-# include <tr1/boost_sp_shared_count.h>
-# include <tr1_impl/boost_shared_ptr.h>
+# include <tr1/shared_ptr.h>
# undef _GLIBCXX_TR1
# undef _GLIBCXX_END_NAMESPACE_TR1
# undef _GLIBCXX_BEGIN_NAMESPACE_TR1
-// <tr1_impl/boost_shared_ptr.h> -*- C++ -*-
+// <tr1/shared_ptr.h> -*- C++ -*-
// Copyright (C) 2007, 2008 Free Software Foundation, Inc.
//
// GCC Note: based on version 1.32.0 of the Boost library.
-/** @file tr1_impl/boost_shared_ptr.h
+/** @file tr1/shared_ptr.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
+#if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
+# error TR1 header cannot be included from C++0x header
+#endif
namespace std
{
-_GLIBCXX_BEGIN_NAMESPACE_TR1
+namespace tr1
+{
+
+ template<typename _Ptr, typename _Deleter, _Lock_policy _Lp>
+ class _Sp_counted_base_impl
+ : public _Sp_counted_base<_Lp>
+ {
+ public:
+ /**
+ * @brief
+ * @pre __d(__p) must not throw.
+ */
+ _Sp_counted_base_impl(_Ptr __p, _Deleter __d)
+ : _M_ptr(__p), _M_del(__d) { }
+
+ virtual void
+ _M_dispose() // nothrow
+ { _M_del(_M_ptr); }
+
+ virtual void*
+ _M_get_deleter(const std::type_info& __ti)
+ { return __ti == typeid(_Deleter) ? &_M_del : 0; }
+
+ private:
+ _Sp_counted_base_impl(const _Sp_counted_base_impl&);
+ _Sp_counted_base_impl& operator=(const _Sp_counted_base_impl&);
+
+ _Ptr _M_ptr; // copy constructor must not throw
+ _Deleter _M_del; // copy constructor must not throw
+ };
+
+ template<_Lock_policy _Lp = __default_lock_policy>
+ class __weak_count;
+
+ template<typename _Tp>
+ struct _Sp_deleter
+ {
+ typedef void result_type;
+ typedef _Tp* argument_type;
+ void operator()(_Tp* __p) const { delete __p; }
+ };
+
+ template<_Lock_policy _Lp = __default_lock_policy>
+ class __shared_count
+ {
+ public:
+ __shared_count()
+ : _M_pi(0) // nothrow
+ { }
+
+ template<typename _Ptr>
+ __shared_count(_Ptr __p) : _M_pi(0)
+ {
+ try
+ {
+ typedef typename std::tr1::remove_pointer<_Ptr>::type _Tp;
+ _M_pi = new _Sp_counted_base_impl<_Ptr, _Sp_deleter<_Tp>, _Lp>(
+ __p, _Sp_deleter<_Tp>());
+ }
+ catch(...)
+ {
+ delete __p;
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _Ptr, typename _Deleter>
+ __shared_count(_Ptr __p, _Deleter __d) : _M_pi(0)
+ {
+ try
+ {
+ _M_pi = new _Sp_counted_base_impl<_Ptr, _Deleter, _Lp>(__p, __d);
+ }
+ catch(...)
+ {
+ __d(__p); // Call _Deleter on __p.
+ __throw_exception_again;
+ }
+ }
+
+ // Special case for auto_ptr<_Tp> to provide the strong guarantee.
+ template<typename _Tp>
+ explicit
+ __shared_count(std::auto_ptr<_Tp>& __r)
+ : _M_pi(new _Sp_counted_base_impl<_Tp*,
+ _Sp_deleter<_Tp>, _Lp >(__r.get(), _Sp_deleter<_Tp>()))
+ { __r.release(); }
+
+ // Throw bad_weak_ptr when __r._M_get_use_count() == 0.
+ explicit
+ __shared_count(const __weak_count<_Lp>& __r);
+
+ ~__shared_count() // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_release();
+ }
+
+ __shared_count(const __shared_count& __r)
+ : _M_pi(__r._M_pi) // nothrow
+ {
+ if (_M_pi != 0)
+ _M_pi->_M_add_ref_copy();
+ }
+
+ __shared_count&
+ operator=(const __shared_count& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ if (__tmp != _M_pi)
+ {
+ if (__tmp != 0)
+ __tmp->_M_add_ref_copy();
+ if (_M_pi != 0)
+ _M_pi->_M_release();
+ _M_pi = __tmp;
+ }
+ return *this;
+ }
+
+ void
+ _M_swap(__shared_count& __r) // nothrow
+ {
+ _Sp_counted_base<_Lp>* __tmp = __r._M_pi;
+ __r._M_pi = _M_pi;
+ _M_pi = __tmp;
+ }
+
+ long
+ _M_get_use_count() const // nothrow
+ { return _M_pi != 0 ? _M_pi->_M_get_use_count() : 0; }
+
+ bool
+ _M_unique() const // nothrow
+ { return this->_M_get_use_count() == 1; }
+
+ friend inline bool
+ operator==(const __shared_count& __a, const __shared_count& __b)
+ { return __a._M_pi == __b._M_pi; }
+
+ friend inline bool
+ operator<(const __shared_count& __a, const __shared_count& __b)
+ { return std::less<_Sp_counted_base<_Lp>*>()(__a._M_pi, __b._M_pi); }
+
+ void*
+ _M_get_deleter(const std::type_info& __ti) const
+ { return _M_pi ? _M_pi->_M_get_deleter(__ti) : 0; }
+
+ private:
+ friend class __weak_count<_Lp>;
+
+ _Sp_counted_base<_Lp>* _M_pi;
+ };
+
template<_Lock_policy _Lp>
class __weak_count
{ }
-#ifdef _GLIBCXX_INCLUDE_AS_TR1
struct __static_cast_tag { };
struct __const_cast_tag { };
struct __dynamic_cast_tag { };
-#endif
/**
* @class __shared_ptr
__enable_shared_from_this_helper(_M_refcount, __p, __p);
}
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- //
- // Requirements: _Deleter's copy constructor and destructor must
- // not throw _Alloc's copy constructor and destructor must not
- // throw.
- //
- // __shared_ptr will release __p by calling __d(__p)
- //
- /** @brief Construct a %__shared_ptr that owns the pointer @a __p
- * and the deleter @a __d.
- * @param __p A pointer.
- * @param __d A deleter.
- * @param __a An allocator.
- * @post use_count() == 1 && get() == __p
- * @throw std::bad_alloc, in which case @a __d(__p) is called.
- */
- template<typename _Tp1, typename _Deleter, typename _Alloc>
- __shared_ptr(_Tp1* __p, _Deleter __d, const _Alloc& __a)
- : _M_ptr(__p), _M_refcount(__p, __d, __a)
- {
- __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
- // TODO requires _Deleter CopyConstructible and __d(__p) well-formed
- __enable_shared_from_this_helper(_M_refcount, __p, __p);
- }
-
- /** @brief Constructs a %__shared_ptr instance that stores @a __p
- * and shares ownership with @a __r.
- * @param __r A %__shared_ptr.
- * @param __p A pointer that will remain valid while @a *__r is valid.
- * @post get() == __p && use_count() == __r.use_count()
- *
- * This can be used to construct a @c shared_ptr to a sub-object
- * of an object managed by an existing @c shared_ptr.
- *
- * @code
- * shared_ptr< pair<int,int> > pii(new pair<int,int>());
- * shared_ptr<int> pi(pii, &pii->first);
- * assert(pii.use_count() == 2);
- * @endcode
- */
- template<typename _Tp1>
- __shared_ptr(const __shared_ptr<_Tp1, _Lp>& __r, _Tp* __p)
- : _M_ptr(__p), _M_refcount(__r._M_refcount) // never throws
- { }
-#endif
-
// generated copy constructor, assignment, destructor are fine.
/** @brief If @a __r is empty, constructs an empty %__shared_ptr;
: _M_ptr(__r._M_ptr), _M_refcount(__r._M_refcount) // never throws
{ __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>) }
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- /** @brief Move-constructs a %__shared_ptr instance from @a __r.
- * @param __r A %__shared_ptr rvalue.
- * @post *this contains the old value of @a __r, @a __r is empty.
- */
- __shared_ptr(__shared_ptr&& __r)
- : _M_ptr(__r._M_ptr), _M_refcount() // never throws
- {
- _M_refcount._M_swap(__r._M_refcount);
- __r._M_ptr = 0;
- }
-
- /** @brief Move-constructs a %__shared_ptr instance from @a __r.
- * @param __r A %__shared_ptr rvalue.
- * @post *this contains the old value of @a __r, @a __r is empty.
- */
- template<typename _Tp1>
- __shared_ptr(__shared_ptr<_Tp1, _Lp>&& __r)
- : _M_ptr(__r._M_ptr), _M_refcount() // never throws
- {
- __glibcxx_function_requires(_ConvertibleConcept<_Tp1*, _Tp*>)
- _M_refcount._M_swap(__r._M_refcount);
- __r._M_ptr = 0;
- }
-#endif
-
/** @brief Constructs a %__shared_ptr that shares ownership with @a __r
* and stores a copy of the pointer stored in @a __r.
* @param __r A weak_ptr.
_M_ptr = __r._M_ptr;
}
+#if !defined(__GXX_EXPERIMENTAL_CXX0X__) || _GLIBCXX_DEPRECATED
/**
* @post use_count() == 1 and __r.get() == 0
*/
-#if !defined(__GXX_EXPERIMENTAL_CXX0X__) || _GLIBCXX_DEPRECATED
template<typename _Tp1>
explicit
__shared_ptr(std::auto_ptr<_Tp1>& __r)
_M_refcount = __shared_count<_Lp>(__r);
__enable_shared_from_this_helper(_M_refcount, __tmp, __tmp);
}
+
#endif
-#ifdef _GLIBCXX_INCLUDE_AS_TR1
template<typename _Tp1>
__shared_ptr(const __shared_ptr<_Tp1, _Lp>& __r, __static_cast_tag)
: _M_ptr(static_cast<element_type*>(__r._M_ptr)),
if (_M_ptr == 0) // need to allocate new counter -- the cast failed
_M_refcount = __shared_count<_Lp>();
}
-#endif
-
+
template<typename _Tp1>
__shared_ptr&
operator=(const __shared_ptr<_Tp1, _Lp>& __r) // never throws
}
#endif
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- __shared_ptr&
- operator=(__shared_ptr&& __r)
- {
- __shared_ptr(std::move(__r)).swap(*this);
- return *this;
- }
-
- template<class _Tp1>
- __shared_ptr&
- operator=(__shared_ptr<_Tp1, _Lp>&& __r)
- {
- __shared_ptr(std::move(__r)).swap(*this);
- return *this;
- }
-#endif
-
void
reset() // never throws
{ __shared_ptr().swap(*this); }
reset(_Tp1* __p, _Deleter __d)
{ __shared_ptr(__p, __d).swap(*this); }
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- template<typename _Tp1, typename _Deleter, typename _Alloc>
- void
- reset(_Tp1* __p, _Deleter __d, const _Alloc& __a)
- { __shared_ptr(__p, __d, __a).swap(*this); }
-
- // Allow class instantiation when _Tp is [cv-qual] void.
- typename std::add_lvalue_reference<_Tp>::type
-#else
// Allow class instantiation when _Tp is [cv-qual] void.
typename std::tr1::add_reference<_Tp>::type
-#endif
operator*() const // never throws
{
_GLIBCXX_DEBUG_ASSERT(_M_ptr != 0);
_M_refcount._M_swap(__other._M_refcount);
}
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- protected:
- // This constructor is non-standard, it is used by allocate_shared.
- template<typename _Alloc, typename... _Args>
- __shared_ptr(_Sp_make_shared_tag __tag, _Alloc __a, _Args&&... __args)
- : _M_ptr(), _M_refcount(__tag, (_Tp*)0, __a,
- std::forward<_Args>(__args)...)
- {
- // _M_ptr needs to point to the newly constructed object.
- // This relies on _Sp_counted_ptr_inplace::_M_get_deleter.
- void* __p = _M_refcount._M_get_deleter(typeid(__tag));
- _M_ptr = static_cast<_Tp*>(__p);
- __enable_shared_from_this_helper(_M_refcount, _M_ptr, _M_ptr);
- }
-
- template<typename _Tp1, _Lock_policy _Lp1, typename _Alloc,
- typename... _Args>
- friend __shared_ptr<_Tp1, _Lp1>
- __allocate_shared(_Alloc __a, _Args&&... __args);
-#endif
-
private:
void*
_M_get_deleter(const std::type_info& __ti) const
template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
inline __shared_ptr<_Tp, _Lp>
static_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r)
- {
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- return __shared_ptr<_Tp, _Lp>(__r, static_cast<_Tp*>(__r.get()));
-#else
- return __shared_ptr<_Tp, _Lp>(__r, __static_cast_tag());
-#endif
- }
+ { return __shared_ptr<_Tp, _Lp>(__r, __static_cast_tag()); }
/** @warning The seemingly equivalent
* <code>shared_ptr<_Tp, _Lp>(const_cast<_Tp*>(__r.get()))</code>
template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
inline __shared_ptr<_Tp, _Lp>
const_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r)
- {
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- return __shared_ptr<_Tp, _Lp>(__r, const_cast<_Tp*>(__r.get()));
-#else
- return __shared_ptr<_Tp, _Lp>(__r, __const_cast_tag());
-#endif
- }
+ { return __shared_ptr<_Tp, _Lp>(__r, __const_cast_tag()); }
/** @warning The seemingly equivalent
* <code>shared_ptr<_Tp, _Lp>(dynamic_cast<_Tp*>(__r.get()))</code>
template<typename _Tp, typename _Tp1, _Lock_policy _Lp>
inline __shared_ptr<_Tp, _Lp>
dynamic_pointer_cast(const __shared_ptr<_Tp1, _Lp>& __r)
- {
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- if (_Tp* __p = dynamic_cast<_Tp*>(__r.get()))
- return __shared_ptr<_Tp, _Lp>(__r, __p);
- return __shared_ptr<_Tp, _Lp>();
-#else
- return __shared_ptr<_Tp, _Lp>(__r, __dynamic_cast_tag());
-#endif
- }
+ { return __shared_ptr<_Tp, _Lp>(__r, __dynamic_cast_tag()); }
// 2.2.3.7 shared_ptr I/O
template<typename _Ch, typename _Tr, typename _Tp, _Lock_policy _Lp>
shared_ptr(_Tp1* __p, _Deleter __d)
: __shared_ptr<_Tp>(__p, __d) { }
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- template<typename _Tp1, typename _Deleter, typename _Alloc>
- shared_ptr(_Tp1* __p, _Deleter __d, const _Alloc& __a)
- : __shared_ptr<_Tp>(__p, __d, __a) { }
-
- // Aliasing constructor
- template<typename _Tp1>
- shared_ptr(const shared_ptr<_Tp1>& __r, _Tp* __p)
- : __shared_ptr<_Tp>(__r, __p) { }
-#endif
-
template<typename _Tp1>
shared_ptr(const shared_ptr<_Tp1>& __r)
: __shared_ptr<_Tp>(__r) { }
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- shared_ptr(shared_ptr&& __r)
- : __shared_ptr<_Tp>(std::move(__r)) { }
-
- template<typename _Tp1>
- shared_ptr(shared_ptr<_Tp1>&& __r)
- : __shared_ptr<_Tp>(std::move(__r)) { }
-#endif
-
template<typename _Tp1>
explicit
shared_ptr(const weak_ptr<_Tp1>& __r)
: __shared_ptr<_Tp>(__r) { }
#endif
-#ifdef _GLIBCXX_INCLUDE_AS_TR1
template<typename _Tp1>
shared_ptr(const shared_ptr<_Tp1>& __r, __static_cast_tag)
: __shared_ptr<_Tp>(__r, __static_cast_tag()) { }
template<typename _Tp1>
shared_ptr(const shared_ptr<_Tp1>& __r, __dynamic_cast_tag)
: __shared_ptr<_Tp>(__r, __dynamic_cast_tag()) { }
-#endif
template<typename _Tp1>
shared_ptr&
return *this;
}
#endif
-
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- shared_ptr&
- operator=(shared_ptr&& __r)
- {
- this->__shared_ptr<_Tp>::operator=(std::move(__r));
- return *this;
- }
-
- template<class _Tp1>
- shared_ptr&
- operator=(shared_ptr<_Tp1>&& __r)
- {
- this->__shared_ptr<_Tp>::operator=(std::move(__r));
- return *this;
- }
-#endif
-
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- private:
- // This constructor is non-standard, it is used by allocate_shared.
- template<typename _Alloc, typename... _Args>
- shared_ptr(_Sp_make_shared_tag __tag, _Alloc __a, _Args&&... __args)
- : __shared_ptr<_Tp>(__tag, __a, std::forward<_Args>(__args)...)
- { }
-
- template<typename _Tp1, typename _Alloc, typename... _Args>
- friend shared_ptr<_Tp1>
- allocate_shared(_Alloc __a, _Args&&... __args);
-#endif
};
+ // 2.2.3.8 shared_ptr specialized algorithms.
+ template<typename _Tp>
+ inline void
+ swap(__shared_ptr<_Tp>& __a, __shared_ptr<_Tp>& __b)
+ { __a.swap(__b); }
+
template<typename _Tp, typename _Tp1>
inline shared_ptr<_Tp>
static_pointer_cast(const shared_ptr<_Tp1>& __r)
- {
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- return shared_ptr<_Tp>(__r, static_cast<_Tp*>(__r.get()));
-#else
- return shared_ptr<_Tp>(__r, __static_cast_tag());
-#endif
- }
+ { return shared_ptr<_Tp>(__r, __static_cast_tag()); }
template<typename _Tp, typename _Tp1>
inline shared_ptr<_Tp>
const_pointer_cast(const shared_ptr<_Tp1>& __r)
- {
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- return shared_ptr<_Tp>(__r, const_cast<_Tp*>(__r.get()));
-#else
- return shared_ptr<_Tp>(__r, __const_cast_tag());
-#endif
- }
+ { return shared_ptr<_Tp>(__r, __const_cast_tag()); }
template<typename _Tp, typename _Tp1>
inline shared_ptr<_Tp>
dynamic_pointer_cast(const shared_ptr<_Tp1>& __r)
- {
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- if (_Tp* __p = dynamic_cast<_Tp*>(__r.get()))
- return shared_ptr<_Tp>(__r, __p);
- return shared_ptr<_Tp>();
-#else
- return shared_ptr<_Tp>(__r, __dynamic_cast_tag());
-#endif
- }
+ { return shared_ptr<_Tp>(__r, __dynamic_cast_tag()); }
/// weak_ptr
mutable weak_ptr<_Tp> _M_weak_this;
};
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X
- template<typename _Tp, _Lock_policy _Lp, typename _Alloc, typename... _Args>
- inline __shared_ptr<_Tp, _Lp>
- __allocate_shared(_Alloc __a, _Args&&... __args)
- {
- return __shared_ptr<_Tp, _Lp>(_Sp_make_shared_tag(),
- std::forward<_Alloc>(__a), std::forward<_Args>(__args)...);
- }
-
- template<typename _Tp, _Lock_policy _Lp, typename... _Args>
- inline __shared_ptr<_Tp, _Lp>
- __make_shared(_Args&&... __args)
- {
- typedef typename std::remove_const<_Tp>::type _Tp_nc;
- return __allocate_shared<_Tp, _Lp>(std::allocator<_Tp_nc>(),
- std::forward<_Args>(__args)...);
- }
-
- /** @brief Create an object that is owned by a shared_ptr.
- * @param __a An allocator.
- * @param __args Arguments for the @a _Tp object's constructor.
- * @return A shared_ptr that owns the newly created object.
- * @throw An exception thrown from @a _Alloc::allocate or from the
- * constructor of @a _Tp.
- *
- * A copy of @a __a will be used to allocate memory for the shared_ptr
- * and the new object.
- */
- template<typename _Tp, typename _Alloc, typename... _Args>
- inline shared_ptr<_Tp>
- allocate_shared(_Alloc __a, _Args&&... __args)
- {
- return shared_ptr<_Tp>(_Sp_make_shared_tag(), std::forward<_Alloc>(__a),
- std::forward<_Args>(__args)...);
- }
-
- /** @brief Create an object that is owned by a shared_ptr.
- * @param __args Arguments for the @a _Tp object's constructor.
- * @return A shared_ptr that owns the newly created object.
- * @throw std::bad_alloc, or an exception thrown from the
- * constructor of @a _Tp.
- */
- template<typename _Tp, typename... _Args>
- inline shared_ptr<_Tp>
- make_shared(_Args&&... __args)
- {
- typedef typename std::remove_const<_Tp>::type _Tp_nc;
- return allocate_shared<_Tp>(std::allocator<_Tp_nc>(),
- std::forward<_Args>(__args)...);
- }
-#endif
-
-_GLIBCXX_END_NAMESPACE_TR1
+}
}
--- /dev/null
+// { dg-options "-std=gnu++0x -Wno-deprecated" }
+// { dg-do compile }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+std::auto_ptr<A> source() { return std::auto_ptr<A>(); }
+
+// 20.7.12.2.3 shared_ptr assignment [util.smartptr.shared.assign]
+
+// Assignment from rvalue auto_ptr
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::shared_ptr<A> a;
+ a = source();
+
+ return 0;
+}
+
+int
+test02()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::shared_ptr<A> a;
+ std::auto_ptr<A> au;
+ a = std::move(au);
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ return 0;
+}
// { dg-options "-std=gnu++0x" }
// { dg-do compile }
-// Copyright (C) 2005, 2006, 2007 Free Software Foundation
+// Copyright (C) 2008 Free Software Foundation
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
-// 20.6.6.2 Template class shared_ptr [util.smartptr.shared]
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
#include <memory>
#include <testsuite_hooks.h>
struct A { };
-std::auto_ptr<A> source() { return std::auto_ptr<A>(); }
-// 20.6.6.2.3 shared_ptr assignment [util.smartptr.shared.assign]
+// 20.7.12.2.3 shared_ptr assignment [util.smartptr.shared.assign]
-// Assignment from rvalue auto_ptr
+// Assignment from lvalue unique_ptr
int
test01()
{
bool test __attribute__((unused)) = true;
std::shared_ptr<A> a;
- a = source(); // { dg-error "no match" }
+ std::unique_ptr<A> u;
+ a = u; // { dg-error "used here" }
return 0;
}
test01();
return 0;
}
-// { dg-excess-errors "candidates are" }
+// { dg-excess-errors "deleted function" }
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+std::unique_ptr<A> source() { return std::unique_ptr<A>(); }
+
+// 20.7.12.2.3 shared_ptr assignment [util.smartptr.shared.assign]
+
+// Assignment from rvalue unique_ptr
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::shared_ptr<A> a;
+ a = source();
+
+ return 0;
+}
+
+int
+test02()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::shared_ptr<A> a;
+ std::unique_ptr<A> u;
+ a = std::move(u);
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ return 0;
+}
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+
+// 20.7.12.2.1 shared_ptr constructors [util.smartptr.shared.const]
+
+// Construction from unique_ptr
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::unique_ptr<A> up(new A);
+ std::shared_ptr<A> sp(std::move(up));
+ VERIFY( up.get() == 0 );
+ VERIFY( sp.get() != 0 );
+ VERIFY( sp.use_count() == 1 );
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+
+struct D {
+ void operator()(A* p) const { delete p; ++count; }
+ static int count;
+};
+
+int D::count = 0;
+
+// 20.7.12.2.1 shared_ptr constructors [util.smartptr.shared.const]
+
+// Construction from unique_ptr
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::unique_ptr<A, D> up(new A, D());
+ {
+ std::shared_ptr<A> sp(std::move(up));
+ VERIFY( up.get() == 0 );
+ VERIFY( sp.get() != 0 );
+ VERIFY( sp.use_count() == 1 );
+ }
+ VERIFY( D::count == 1 );
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+
+struct D {
+ typedef void result_type;
+ void operator()(A* p) { delete p; ++count; }
+ int count;
+};
+
+
+// 20.7.12.2.1 shared_ptr constructors [util.smartptr.shared.const]
+
+// Construction from unique_ptr
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ D d = D();
+ std::unique_ptr<A, D&> up(new A, d);
+ {
+ std::shared_ptr<A> sp(std::move(up));
+ VERIFY( up.get() == 0 );
+ VERIFY( sp.get() != 0 );
+ VERIFY( sp.use_count() == 1 );
+ }
+ VERIFY( d.count == 1 );
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+
+// 20.7.12.2.1 shared_ptr constructors [util.smartptr.shared.const]
+
+// Construction from lvalue unique_ptr
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::unique_ptr<A> a;
+ std::shared_ptr<A> p(a); // { dg-error "used here" }
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
+// { dg-excess-errors "deleted function" }
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2008 Free Software Foundation
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
+
+#include <memory>
+#include <testsuite_hooks.h>
+
+struct A { };
+
+// 20.7.12.2.4 shared_ptr modifiers [util.smartptr.shared.mod]
+
+// swap
+int
+test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::shared_ptr<A> p(new A);
+ p.swap(std::shared_ptr<A>(new A));
+
+ return 0;
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
projects / platform / upstream / linaro-gcc.git / commitdiff