mirror of https://github.com/odrling/Aegisub
Change the one use of boost::shared_ptr to std::tr1::shared_ptr and remove the local copy of boost::shared_ptr
Originally committed to SVN as r4754.
This commit is contained in:
Thomas Goyne
parent
574236875c
commit
34c571b81b
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@ -86,8 +86,6 @@
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#include <tr1/memory>
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#include <tr1/memory>
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#endif
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#endif
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#include "boost/shared_ptr.hpp"
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// General headers
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// General headers
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#include <assert.h>
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#include <assert.h>
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#include <ctype.h>
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#include <ctype.h>
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@ -64,7 +64,7 @@ AssAttachment::AssAttachment(wxString _name) {
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// Set data
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// Set data
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filename = name;
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filename = name;
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data = boost::shared_ptr<AttachData> (new AttachData);
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data = std::tr1::shared_ptr<AttachData> (new AttachData);
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}
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}
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@ -38,8 +38,8 @@
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///////////
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///////////
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// Headers
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// Headers
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#ifndef AGI_PRE
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#ifndef AGI_PRE
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#include <tr1/memory>
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#include <vector>
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#include <vector>
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#include "boost/shared_ptr.hpp"
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#endif
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#endif
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#include "ass_entry.h"
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#include "ass_entry.h"
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@ -76,7 +76,7 @@ class AssAttachment : public AssEntry {
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private:
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private:
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/// DOCME
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/// DOCME
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boost::shared_ptr<AttachData> data;
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std::tr1::shared_ptr<AttachData> data;
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/// DOCME
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/// DOCME
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wxString filename;
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wxString filename;
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@ -1,23 +0,0 @@
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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@ -1,37 +0,0 @@
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//
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// boost/assert.hpp - BOOST_ASSERT(expr)
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//
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// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Note: There are no include guards. This is intentional.
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//
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// See http://www.boost.org/libs/utility/assert.html for documentation.
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//
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#undef BOOST_ASSERT
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#if defined(BOOST_DISABLE_ASSERTS)
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# define BOOST_ASSERT(expr) ((void)0)
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#elif defined(BOOST_ENABLE_ASSERT_HANDLER)
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#include "current_function.hpp"
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namespace boost
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{
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void assertion_failed(char const * expr, char const * function, char const * file, long line); // user defined
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} // namespace boost
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#define BOOST_ASSERT(expr) ((expr)? ((void)0): ::boost::assertion_failed(#expr, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
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#else
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# include <assert.h>
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# define BOOST_ASSERT(expr) assert(expr)
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#endif
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@ -1,69 +0,0 @@
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#ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED
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#define BOOST_CHECKED_DELETE_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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//
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// boost/checked_delete.hpp
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//
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// Copyright (c) 2002, 2003 Peter Dimov
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// Copyright (c) 2003 Daniel Frey
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// Copyright (c) 2003 Howard Hinnant
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/utility/checked_delete.html for documentation.
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//
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namespace boost
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{
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// verify that types are complete for increased safety
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template<class T> inline void checked_delete(T * x)
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{
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// intentionally complex - simplification causes regressions
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typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
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(void) sizeof(type_must_be_complete);
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delete x;
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}
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template<class T> inline void checked_array_delete(T * x)
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{
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typedef char type_must_be_complete[ sizeof(T)? 1: -1 ];
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(void) sizeof(type_must_be_complete);
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delete [] x;
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}
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template<class T> struct checked_deleter
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{
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typedef void result_type;
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typedef T * argument_type;
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void operator()(T * x) const
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{
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// boost:: disables ADL
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boost::checked_delete(x);
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}
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};
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template<class T> struct checked_array_deleter
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{
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typedef void result_type;
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typedef T * argument_type;
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void operator()(T * x) const
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{
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boost::checked_array_delete(x);
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}
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};
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} // namespace boost
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#endif // #ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED
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@ -1,545 +0,0 @@
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#ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
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#define BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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//
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// detail/shared_count.hpp
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//
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// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "checked_delete.hpp"
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#include "throw_exception.hpp"
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#include <memory> // std::auto_ptr, std::allocator
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#include <functional> // std::less
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#include <exception> // std::exception
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#include <new> // std::bad_alloc
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#include <typeinfo> // std::type_info in get_deleter
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#include <cstddef> // std::size_t
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#ifdef __BORLANDC__
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# pragma warn -8026 // Functions with excep. spec. are not expanded inline
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# pragma warn -8027 // Functions containing try are not expanded inline
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#endif
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namespace boost
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{
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// Debug hooks
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
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void sp_scalar_constructor_hook(void * px, std::size_t size, void * pn);
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void sp_array_constructor_hook(void * px);
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void sp_scalar_destructor_hook(void * px, std::size_t size, void * pn);
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void sp_array_destructor_hook(void * px);
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#endif
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// The standard library that comes with Borland C++ 5.5.1
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// defines std::exception and its members as having C calling
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// convention (-pc). When the definition of bad_weak_ptr
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// is compiled with -ps, the compiler issues an error.
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// Hence, the temporary #pragma option -pc below. The version
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// check is deliberately conservative.
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#if defined(__BORLANDC__) && __BORLANDC__ == 0x551
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# pragma option push -pc
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#endif
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class bad_weak_ptr: public std::exception
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{
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public:
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virtual char const * what() const throw()
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{
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return "boost::bad_weak_ptr";
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}
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};
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#if defined(__BORLANDC__) && __BORLANDC__ == 0x551
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# pragma option pop
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#endif
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namespace detail
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{
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class sp_counted_base
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{
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private:
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public:
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sp_counted_base(): use_count_(1), weak_count_(1)
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{
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}
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virtual ~sp_counted_base() // nothrow
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{
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}
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// dispose() is called when use_count_ drops to zero, to release
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// the resources managed by *this.
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virtual void dispose() = 0; // nothrow
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// destruct() is called when weak_count_ drops to zero.
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virtual void destruct() // nothrow
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{
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delete this;
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}
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virtual void * get_deleter(std::type_info const & ti) = 0;
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void add_ref_copy()
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{
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#if defined(BOOST_HAS_THREADS)
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mutex_type::scoped_lock lock(mtx_);
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#endif
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++use_count_;
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}
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void add_ref_lock()
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{
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#if defined(BOOST_HAS_THREADS)
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mutex_type::scoped_lock lock(mtx_);
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#endif
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if(use_count_ == 0) boost::throw_exception(boost::bad_weak_ptr());
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++use_count_;
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}
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void release() // nothrow
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{
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{
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#if defined(BOOST_HAS_THREADS)
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mutex_type::scoped_lock lock(mtx_);
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#endif
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long new_use_count = --use_count_;
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if(new_use_count != 0) return;
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}
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dispose();
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weak_release();
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}
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void weak_add_ref() // nothrow
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{
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#if defined(BOOST_HAS_THREADS)
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mutex_type::scoped_lock lock(mtx_);
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#endif
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++weak_count_;
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}
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void weak_release() // nothrow
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{
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long new_weak_count;
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{
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#if defined(BOOST_HAS_THREADS)
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mutex_type::scoped_lock lock(mtx_);
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#endif
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new_weak_count = --weak_count_;
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}
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if(new_weak_count == 0)
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{
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destruct();
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}
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}
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long use_count() const // nothrow
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{
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#if defined(BOOST_HAS_THREADS)
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mutex_type::scoped_lock lock(mtx_);
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#endif
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return use_count_;
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}
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private:
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sp_counted_base(sp_counted_base const &);
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sp_counted_base & operator= (sp_counted_base const &);
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long use_count_; // #shared
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long weak_count_; // #weak + (#shared != 0)
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#if defined(BOOST_HAS_THREADS) || defined(BOOST_LWM_WIN32)
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mutable mutex_type mtx_;
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#endif
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};
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
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template<class T> void cbi_call_constructor_hook(sp_counted_base * pn, T * px, checked_deleter<T> const &, int)
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{
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boost::sp_scalar_constructor_hook(px, sizeof(T), pn);
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}
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template<class T> void cbi_call_constructor_hook(sp_counted_base *, T * px, checked_array_deleter<T> const &, int)
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{
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boost::sp_array_constructor_hook(px);
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}
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template<class P, class D> void cbi_call_constructor_hook(sp_counted_base *, P const &, D const &, long)
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{
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}
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template<class T> void cbi_call_destructor_hook(sp_counted_base * pn, T * px, checked_deleter<T> const &, int)
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{
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boost::sp_scalar_destructor_hook(px, sizeof(T), pn);
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}
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template<class T> void cbi_call_destructor_hook(sp_counted_base *, T * px, checked_array_deleter<T> const &, int)
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{
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boost::sp_array_destructor_hook(px);
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}
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template<class P, class D> void cbi_call_destructor_hook(sp_counted_base *, P const &, D const &, long)
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{
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}
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#endif
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//
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// Borland's Codeguard trips up over the -Vx- option here:
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//
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#ifdef __CODEGUARD__
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# pragma option push -Vx-
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#endif
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template<class P, class D> class sp_counted_base_impl: public sp_counted_base
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{
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private:
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P ptr; // copy constructor must not throw
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D del; // copy constructor must not throw
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sp_counted_base_impl(sp_counted_base_impl const &);
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sp_counted_base_impl & operator= (sp_counted_base_impl const &);
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typedef sp_counted_base_impl<P, D> this_type;
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public:
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|
||||||
// pre: initial_use_count <= initial_weak_count, d(p) must not throw
|
|
||||||
|
|
||||||
sp_counted_base_impl(P p, D d): ptr(p), del(d)
|
|
||||||
{
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
detail::cbi_call_constructor_hook(this, p, d, 0);
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
virtual void dispose() // nothrow
|
|
||||||
{
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
detail::cbi_call_destructor_hook(this, ptr, del, 0);
|
|
||||||
#endif
|
|
||||||
del(ptr);
|
|
||||||
}
|
|
||||||
|
|
||||||
virtual void * get_deleter(std::type_info const & ti)
|
|
||||||
{
|
|
||||||
return ti == typeid(D)? &del: 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
|
||||||
|
|
||||||
void * operator new(std::size_t)
|
|
||||||
{
|
|
||||||
return std::allocator<this_type>().allocate(1, static_cast<this_type *>(0));
|
|
||||||
}
|
|
||||||
|
|
||||||
void operator delete(void * p)
|
|
||||||
{
|
|
||||||
std::allocator<this_type>().deallocate(static_cast<this_type *>(p), 1);
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
|
||||||
|
|
||||||
void * operator new(std::size_t)
|
|
||||||
{
|
|
||||||
return quick_allocator<this_type>::alloc();
|
|
||||||
}
|
|
||||||
|
|
||||||
void operator delete(void * p)
|
|
||||||
{
|
|
||||||
quick_allocator<this_type>::dealloc(p);
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
};
|
|
||||||
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
|
|
||||||
int const shared_count_id = 0x2C35F101;
|
|
||||||
int const weak_count_id = 0x298C38A4;
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
class weak_count;
|
|
||||||
|
|
||||||
class shared_count
|
|
||||||
{
|
|
||||||
private:
|
|
||||||
|
|
||||||
sp_counted_base * pi_;
|
|
||||||
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
int id_;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
friend class weak_count;
|
|
||||||
|
|
||||||
public:
|
|
||||||
|
|
||||||
shared_count(): pi_(0) // nothrow
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class P, class D> shared_count(P p, D d): pi_(0)
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
#ifndef BOOST_NO_EXCEPTIONS
|
|
||||||
|
|
||||||
try
|
|
||||||
{
|
|
||||||
pi_ = new sp_counted_base_impl<P, D>(p, d);
|
|
||||||
}
|
|
||||||
catch(...)
|
|
||||||
{
|
|
||||||
d(p); // delete p
|
|
||||||
throw;
|
|
||||||
}
|
|
||||||
|
|
||||||
#else
|
|
||||||
|
|
||||||
pi_ = new sp_counted_base_impl<P, D>(p, d);
|
|
||||||
|
|
||||||
if(pi_ == 0)
|
|
||||||
{
|
|
||||||
d(p); // delete p
|
|
||||||
boost::throw_exception(std::bad_alloc());
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifndef BOOST_NO_AUTO_PTR
|
|
||||||
|
|
||||||
// auto_ptr<Y> is special cased to provide the strong guarantee
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
explicit shared_count(std::auto_ptr<Y> & r): pi_(new sp_counted_base_impl< Y *, checked_deleter<Y> >(r.get(), checked_deleter<Y>()))
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
r.release();
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
~shared_count() // nothrow
|
|
||||||
{
|
|
||||||
if(pi_ != 0) pi_->release();
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
id_ = 0;
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
shared_count(shared_count const & r): pi_(r.pi_) // nothrow
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
if(pi_ != 0) pi_->add_ref_copy();
|
|
||||||
}
|
|
||||||
|
|
||||||
explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0
|
|
||||||
|
|
||||||
shared_count & operator= (shared_count const & r) // nothrow
|
|
||||||
{
|
|
||||||
sp_counted_base * tmp = r.pi_;
|
|
||||||
|
|
||||||
if(tmp != pi_)
|
|
||||||
{
|
|
||||||
if(tmp != 0) tmp->add_ref_copy();
|
|
||||||
if(pi_ != 0) pi_->release();
|
|
||||||
pi_ = tmp;
|
|
||||||
}
|
|
||||||
|
|
||||||
return *this;
|
|
||||||
}
|
|
||||||
|
|
||||||
void swap(shared_count & r) // nothrow
|
|
||||||
{
|
|
||||||
sp_counted_base * tmp = r.pi_;
|
|
||||||
r.pi_ = pi_;
|
|
||||||
pi_ = tmp;
|
|
||||||
}
|
|
||||||
|
|
||||||
long use_count() const // nothrow
|
|
||||||
{
|
|
||||||
return pi_ != 0? pi_->use_count(): 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool unique() const // nothrow
|
|
||||||
{
|
|
||||||
return use_count() == 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
friend inline bool operator==(shared_count const & a, shared_count const & b)
|
|
||||||
{
|
|
||||||
return a.pi_ == b.pi_;
|
|
||||||
}
|
|
||||||
|
|
||||||
friend inline bool operator<(shared_count const & a, shared_count const & b)
|
|
||||||
{
|
|
||||||
return std::less<sp_counted_base *>()(a.pi_, b.pi_);
|
|
||||||
}
|
|
||||||
|
|
||||||
void * get_deleter(std::type_info const & ti) const
|
|
||||||
{
|
|
||||||
return pi_? pi_->get_deleter(ti): 0;
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
#ifdef __CODEGUARD__
|
|
||||||
# pragma option pop
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
class weak_count
|
|
||||||
{
|
|
||||||
private:
|
|
||||||
|
|
||||||
sp_counted_base * pi_;
|
|
||||||
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
int id_;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
friend class shared_count;
|
|
||||||
|
|
||||||
public:
|
|
||||||
|
|
||||||
weak_count(): pi_(0) // nothrow
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(weak_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
weak_count(shared_count const & r): pi_(r.pi_) // nothrow
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
if(pi_ != 0) pi_->weak_add_ref();
|
|
||||||
}
|
|
||||||
|
|
||||||
weak_count(weak_count const & r): pi_(r.pi_) // nothrow
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
if(pi_ != 0) pi_->weak_add_ref();
|
|
||||||
}
|
|
||||||
|
|
||||||
~weak_count() // nothrow
|
|
||||||
{
|
|
||||||
if(pi_ != 0) pi_->weak_release();
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
id_ = 0;
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
weak_count & operator= (shared_count const & r) // nothrow
|
|
||||||
{
|
|
||||||
sp_counted_base * tmp = r.pi_;
|
|
||||||
if(tmp != 0) tmp->weak_add_ref();
|
|
||||||
if(pi_ != 0) pi_->weak_release();
|
|
||||||
pi_ = tmp;
|
|
||||||
|
|
||||||
return *this;
|
|
||||||
}
|
|
||||||
|
|
||||||
weak_count & operator= (weak_count const & r) // nothrow
|
|
||||||
{
|
|
||||||
sp_counted_base * tmp = r.pi_;
|
|
||||||
if(tmp != 0) tmp->weak_add_ref();
|
|
||||||
if(pi_ != 0) pi_->weak_release();
|
|
||||||
pi_ = tmp;
|
|
||||||
|
|
||||||
return *this;
|
|
||||||
}
|
|
||||||
|
|
||||||
void swap(weak_count & r) // nothrow
|
|
||||||
{
|
|
||||||
sp_counted_base * tmp = r.pi_;
|
|
||||||
r.pi_ = pi_;
|
|
||||||
pi_ = tmp;
|
|
||||||
}
|
|
||||||
|
|
||||||
long use_count() const // nothrow
|
|
||||||
{
|
|
||||||
return pi_ != 0? pi_->use_count(): 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
friend inline bool operator==(weak_count const & a, weak_count const & b)
|
|
||||||
{
|
|
||||||
return a.pi_ == b.pi_;
|
|
||||||
}
|
|
||||||
|
|
||||||
friend inline bool operator<(weak_count const & a, weak_count const & b)
|
|
||||||
{
|
|
||||||
return std::less<sp_counted_base *>()(a.pi_, b.pi_);
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
inline shared_count::shared_count(weak_count const & r): pi_(r.pi_)
|
|
||||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
|
||||||
, id_(shared_count_id)
|
|
||||||
#endif
|
|
||||||
{
|
|
||||||
if(pi_ != 0)
|
|
||||||
{
|
|
||||||
pi_->add_ref_lock();
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
boost::throw_exception(boost::bad_weak_ptr());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
} // namespace detail
|
|
||||||
|
|
||||||
} // namespace boost
|
|
||||||
|
|
||||||
#ifdef __BORLANDC__
|
|
||||||
# pragma warn .8027 // Functions containing try are not expanded inline
|
|
||||||
# pragma warn .8026 // Functions with excep. spec. are not expanded inline
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#endif // #ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
|
||||||
|
|
@ -1,465 +0,0 @@
|
||||||
#ifndef BOOST_SHARED_PTR_HPP_INCLUDED
|
|
||||||
#define BOOST_SHARED_PTR_HPP_INCLUDED
|
|
||||||
|
|
||||||
//
|
|
||||||
// shared_ptr.hpp
|
|
||||||
//
|
|
||||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
|
||||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
|
||||||
//
|
|
||||||
// Distributed under the Boost Software License, Version 1.0. (See
|
|
||||||
// accompanying file LICENSE_1_0.txt or copy at
|
|
||||||
// http://www.boost.org/LICENSE_1_0.txt)
|
|
||||||
//
|
|
||||||
// See http://www.boost.org/libs/smart_ptr/shared_ptr.htm for documentation.
|
|
||||||
//
|
|
||||||
|
|
||||||
#include "assert.hpp"
|
|
||||||
#include "checked_delete.hpp"
|
|
||||||
#include "throw_exception.hpp"
|
|
||||||
#include "shared_count.hpp"
|
|
||||||
#include "workaround.hpp"
|
|
||||||
|
|
||||||
#include <memory> // for std::auto_ptr
|
|
||||||
#include <algorithm> // for std::swap
|
|
||||||
#include <functional> // for std::less
|
|
||||||
#include <typeinfo> // for std::bad_cast
|
|
||||||
#include <iosfwd> // for std::basic_ostream
|
|
||||||
|
|
||||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
|
||||||
# pragma warning(push)
|
|
||||||
# pragma warning(disable:4284) // odd return type for operator->
|
|
||||||
#endif
|
|
||||||
|
|
||||||
namespace boost
|
|
||||||
{
|
|
||||||
|
|
||||||
template<class T> class weak_ptr;
|
|
||||||
template<class T> class enable_shared_from_this;
|
|
||||||
|
|
||||||
namespace detail
|
|
||||||
{
|
|
||||||
|
|
||||||
struct static_cast_tag {};
|
|
||||||
struct const_cast_tag {};
|
|
||||||
struct dynamic_cast_tag {};
|
|
||||||
struct polymorphic_cast_tag {};
|
|
||||||
|
|
||||||
template<class T> struct shared_ptr_traits
|
|
||||||
{
|
|
||||||
typedef T & reference;
|
|
||||||
};
|
|
||||||
|
|
||||||
template<> struct shared_ptr_traits<void>
|
|
||||||
{
|
|
||||||
typedef void reference;
|
|
||||||
};
|
|
||||||
|
|
||||||
#if !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS)
|
|
||||||
|
|
||||||
template<> struct shared_ptr_traits<void const>
|
|
||||||
{
|
|
||||||
typedef void reference;
|
|
||||||
};
|
|
||||||
|
|
||||||
template<> struct shared_ptr_traits<void volatile>
|
|
||||||
{
|
|
||||||
typedef void reference;
|
|
||||||
};
|
|
||||||
|
|
||||||
template<> struct shared_ptr_traits<void const volatile>
|
|
||||||
{
|
|
||||||
typedef void reference;
|
|
||||||
};
|
|
||||||
|
|
||||||
// enable_shared_from_this support
|
|
||||||
|
|
||||||
template<class T, class Y> void sp_enable_shared_from_this( shared_count const & pn, boost::enable_shared_from_this<T> const * pe, Y const * px )
|
|
||||||
{
|
|
||||||
if(pe != 0) pe->_internal_weak_this._internal_assign(const_cast<Y*>(px), pn);
|
|
||||||
}
|
|
||||||
|
|
||||||
inline void sp_enable_shared_from_this( shared_count const & /*pn*/, ... )
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
} // namespace detail
|
|
||||||
|
|
||||||
|
|
||||||
//
|
|
||||||
// shared_ptr
|
|
||||||
//
|
|
||||||
// An enhanced relative of scoped_ptr with reference counted copy semantics.
|
|
||||||
// The object pointed to is deleted when the last shared_ptr pointing to it
|
|
||||||
// is destroyed or reset.
|
|
||||||
//
|
|
||||||
|
|
||||||
template<class T> class shared_ptr
|
|
||||||
{
|
|
||||||
private:
|
|
||||||
|
|
||||||
// Borland 5.5.1 specific workaround
|
|
||||||
typedef shared_ptr<T> this_type;
|
|
||||||
|
|
||||||
public:
|
|
||||||
|
|
||||||
typedef T element_type;
|
|
||||||
typedef T value_type;
|
|
||||||
typedef T * pointer;
|
|
||||||
typedef typename detail::shared_ptr_traits<T>::reference reference;
|
|
||||||
|
|
||||||
shared_ptr(): px(0), pn() // never throws in 1.30+
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
explicit shared_ptr(Y * p): px(p), pn(p, checked_deleter<Y>()) // Y must be complete
|
|
||||||
{
|
|
||||||
detail::sp_enable_shared_from_this( pn, p, p );
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Requirements: D's copy constructor must not throw
|
|
||||||
//
|
|
||||||
// shared_ptr will release p by calling d(p)
|
|
||||||
//
|
|
||||||
|
|
||||||
template<class Y, class D> shared_ptr(Y * p, D d): px(p), pn(p, d)
|
|
||||||
{
|
|
||||||
detail::sp_enable_shared_from_this( pn, p, p );
|
|
||||||
}
|
|
||||||
|
|
||||||
// generated copy constructor, assignment, destructor are fine...
|
|
||||||
|
|
||||||
// except that Borland C++ has a bug, and g++ with -Wsynth warns
|
|
||||||
#if defined(__BORLANDC__) || defined(__GNUC__)
|
|
||||||
|
|
||||||
shared_ptr & operator=(shared_ptr const & r) // never throws
|
|
||||||
{
|
|
||||||
px = r.px;
|
|
||||||
pn = r.pn; // shared_count::op= doesn't throw
|
|
||||||
return *this;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
explicit shared_ptr(weak_ptr<Y> const & r): pn(r.pn) // may throw
|
|
||||||
{
|
|
||||||
// it is now safe to copy r.px, as pn(r.pn) did not throw
|
|
||||||
px = r.px;
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr(shared_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr(shared_ptr<Y> const & r, detail::static_cast_tag): px(static_cast<element_type *>(r.px)), pn(r.pn)
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr(shared_ptr<Y> const & r, detail::const_cast_tag): px(const_cast<element_type *>(r.px)), pn(r.pn)
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr(shared_ptr<Y> const & r, detail::dynamic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn)
|
|
||||||
{
|
|
||||||
if(px == 0) // need to allocate new counter -- the cast failed
|
|
||||||
{
|
|
||||||
pn = detail::shared_count();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr(shared_ptr<Y> const & r, detail::polymorphic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn)
|
|
||||||
{
|
|
||||||
if(px == 0)
|
|
||||||
{
|
|
||||||
boost::throw_exception(std::bad_cast());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifndef BOOST_NO_AUTO_PTR
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
explicit shared_ptr(std::auto_ptr<Y> & r): px(r.get()), pn()
|
|
||||||
{
|
|
||||||
Y * tmp = r.get();
|
|
||||||
pn = detail::shared_count(r);
|
|
||||||
detail::sp_enable_shared_from_this( pn, tmp, tmp );
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC > 1200)
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr & operator=(shared_ptr<Y> const & r) // never throws
|
|
||||||
{
|
|
||||||
px = r.px;
|
|
||||||
pn = r.pn; // shared_count::op= doesn't throw
|
|
||||||
return *this;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifndef BOOST_NO_AUTO_PTR
|
|
||||||
|
|
||||||
template<class Y>
|
|
||||||
shared_ptr & operator=(std::auto_ptr<Y> & r)
|
|
||||||
{
|
|
||||||
this_type(r).swap(*this);
|
|
||||||
return *this;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
void reset() // never throws in 1.30+
|
|
||||||
{
|
|
||||||
this_type().swap(*this);
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y> void reset(Y * p) // Y must be complete
|
|
||||||
{
|
|
||||||
BOOST_ASSERT(p == 0 || p != px); // catch self-reset errors
|
|
||||||
this_type(p).swap(*this);
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y, class D> void reset(Y * p, D d)
|
|
||||||
{
|
|
||||||
this_type(p, d).swap(*this);
|
|
||||||
}
|
|
||||||
|
|
||||||
reference operator* () const // never throws
|
|
||||||
{
|
|
||||||
BOOST_ASSERT(px != 0);
|
|
||||||
return *px;
|
|
||||||
}
|
|
||||||
|
|
||||||
T * operator-> () const // never throws
|
|
||||||
{
|
|
||||||
BOOST_ASSERT(px != 0);
|
|
||||||
return px;
|
|
||||||
}
|
|
||||||
|
|
||||||
T * get() const // never throws
|
|
||||||
{
|
|
||||||
return px;
|
|
||||||
}
|
|
||||||
|
|
||||||
// implicit conversion to "bool"
|
|
||||||
|
|
||||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
|
||||||
|
|
||||||
operator bool () const
|
|
||||||
{
|
|
||||||
return px != 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
|
|
||||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
|
||||||
|
|
||||||
operator unspecified_bool_type() const // never throws
|
|
||||||
{
|
|
||||||
return px == 0? 0: &this_type::get;
|
|
||||||
}
|
|
||||||
|
|
||||||
#else
|
|
||||||
|
|
||||||
typedef T * this_type::*unspecified_bool_type;
|
|
||||||
|
|
||||||
operator unspecified_bool_type() const // never throws
|
|
||||||
{
|
|
||||||
return px == 0? 0: &this_type::px;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
// operator! is redundant, but some compilers need it
|
|
||||||
|
|
||||||
bool operator! () const // never throws
|
|
||||||
{
|
|
||||||
return px == 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool unique() const // never throws
|
|
||||||
{
|
|
||||||
return pn.unique();
|
|
||||||
}
|
|
||||||
|
|
||||||
long use_count() const // never throws
|
|
||||||
{
|
|
||||||
return pn.use_count();
|
|
||||||
}
|
|
||||||
|
|
||||||
void swap(shared_ptr<T> & other) // never throws
|
|
||||||
{
|
|
||||||
std::swap(px, other.px);
|
|
||||||
pn.swap(other.pn);
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class Y> bool _internal_less(shared_ptr<Y> const & rhs) const
|
|
||||||
{
|
|
||||||
return pn < rhs.pn;
|
|
||||||
}
|
|
||||||
|
|
||||||
void * _internal_get_deleter(std::type_info const & ti) const
|
|
||||||
{
|
|
||||||
return pn.get_deleter(ti);
|
|
||||||
}
|
|
||||||
|
|
||||||
// Tasteless as this may seem, making all members public allows member templates
|
|
||||||
// to work in the absence of member template friends. (Matthew Langston)
|
|
||||||
|
|
||||||
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
|
|
||||||
|
|
||||||
private:
|
|
||||||
|
|
||||||
template<class Y> friend class shared_ptr;
|
|
||||||
template<class Y> friend class weak_ptr;
|
|
||||||
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
T * px; // contained pointer
|
|
||||||
detail::shared_count pn; // reference counter
|
|
||||||
|
|
||||||
}; // shared_ptr
|
|
||||||
|
|
||||||
template<class T, class U> inline bool operator==(shared_ptr<T> const & a, shared_ptr<U> const & b)
|
|
||||||
{
|
|
||||||
return a.get() == b.get();
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> inline bool operator!=(shared_ptr<T> const & a, shared_ptr<U> const & b)
|
|
||||||
{
|
|
||||||
return a.get() != b.get();
|
|
||||||
}
|
|
||||||
|
|
||||||
#if __GNUC__ == 2 && __GNUC_MINOR__ <= 96
|
|
||||||
|
|
||||||
// Resolve the ambiguity between our op!= and the one in rel_ops
|
|
||||||
|
|
||||||
template<class T> inline bool operator!=(shared_ptr<T> const & a, shared_ptr<T> const & b)
|
|
||||||
{
|
|
||||||
return a.get() != b.get();
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
template<class T, class U> inline bool operator<(shared_ptr<T> const & a, shared_ptr<U> const & b)
|
|
||||||
{
|
|
||||||
return a._internal_less(b);
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T> inline void swap(shared_ptr<T> & a, shared_ptr<T> & b)
|
|
||||||
{
|
|
||||||
a.swap(b);
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> static_pointer_cast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
return shared_ptr<T>(r, detail::static_cast_tag());
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> const_pointer_cast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
return shared_ptr<T>(r, detail::const_cast_tag());
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
return shared_ptr<T>(r, detail::dynamic_cast_tag());
|
|
||||||
}
|
|
||||||
|
|
||||||
// shared_*_cast names are deprecated. Use *_pointer_cast instead.
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> shared_static_cast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
return shared_ptr<T>(r, detail::static_cast_tag());
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> shared_dynamic_cast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
return shared_ptr<T>(r, detail::dynamic_cast_tag());
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> shared_polymorphic_cast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
return shared_ptr<T>(r, detail::polymorphic_cast_tag());
|
|
||||||
}
|
|
||||||
|
|
||||||
template<class T, class U> shared_ptr<T> shared_polymorphic_downcast(shared_ptr<U> const & r)
|
|
||||||
{
|
|
||||||
BOOST_ASSERT(dynamic_cast<T *>(r.get()) == r.get());
|
|
||||||
return shared_static_cast<T>(r);
|
|
||||||
}
|
|
||||||
|
|
||||||
// get_pointer() enables boost::mem_fn to recognize shared_ptr
|
|
||||||
|
|
||||||
template<class T> inline T * get_pointer(shared_ptr<T> const & p)
|
|
||||||
{
|
|
||||||
return p.get();
|
|
||||||
}
|
|
||||||
|
|
||||||
// operator<<
|
|
||||||
|
|
||||||
#if defined(__GNUC__) && (__GNUC__ < 3)
|
|
||||||
|
|
||||||
template<class Y> std::ostream & operator<< (std::ostream & os, shared_ptr<Y> const & p)
|
|
||||||
{
|
|
||||||
os << p.get();
|
|
||||||
return os;
|
|
||||||
}
|
|
||||||
|
|
||||||
#else
|
|
||||||
|
|
||||||
# if defined(BOOST_MSVC) && BOOST_WORKAROUND(BOOST_MSVC, <= 1200 && __SGI_STL_PORT)
|
|
||||||
// MSVC6 has problems finding std::basic_ostream through the using declaration in namespace _STL
|
|
||||||
using std::basic_ostream;
|
|
||||||
template<class E, class T, class Y> basic_ostream<E, T> & operator<< (basic_ostream<E, T> & os, shared_ptr<Y> const & p)
|
|
||||||
# else
|
|
||||||
template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::basic_ostream<E, T> & os, shared_ptr<Y> const & p)
|
|
||||||
# endif
|
|
||||||
{
|
|
||||||
os << p.get();
|
|
||||||
return os;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
// get_deleter (experimental)
|
|
||||||
|
|
||||||
#if (defined(__GNUC__) && (__GNUC__ < 3)) || (defined(__EDG_VERSION__) && (__EDG_VERSION__ <= 238))
|
|
||||||
|
|
||||||
// g++ 2.9x doesn't allow static_cast<X const *>(void *)
|
|
||||||
// apparently EDG 2.38 also doesn't accept it
|
|
||||||
|
|
||||||
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
|
||||||
{
|
|
||||||
void const * q = p._internal_get_deleter(typeid(D));
|
|
||||||
return const_cast<D *>(static_cast<D const *>(q));
|
|
||||||
}
|
|
||||||
|
|
||||||
#else
|
|
||||||
|
|
||||||
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
|
||||||
{
|
|
||||||
return static_cast<D *>(p._internal_get_deleter(typeid(D)));
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
|
||||||
|
|
||||||
} // namespace boost
|
|
||||||
|
|
||||||
#ifdef BOOST_MSVC
|
|
||||||
# pragma warning(pop)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#endif // #if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
|
||||||
|
|
||||||
#endif // #ifndef BOOST_SHARED_PTR_HPP_INCLUDED
|
|
||||||
|
|
@ -1,34 +0,0 @@
|
||||||
#ifndef BOOST_THROW_EXCEPTION_HPP_INCLUDED
|
|
||||||
#define BOOST_THROW_EXCEPTION_HPP_INCLUDED
|
|
||||||
|
|
||||||
// MS compatible compilers support #pragma once
|
|
||||||
|
|
||||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
|
||||||
# pragma once
|
|
||||||
#endif
|
|
||||||
|
|
||||||
//
|
|
||||||
// boost/throw_exception.hpp
|
|
||||||
//
|
|
||||||
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
|
||||||
//
|
|
||||||
// Distributed under the Boost Software License, Version 1.0. (See
|
|
||||||
// accompanying file LICENSE_1_0.txt or copy at
|
|
||||||
// http://www.boost.org/LICENSE_1_0.txt)
|
|
||||||
//
|
|
||||||
// http://www.boost.org/libs/utility/throw_exception.html
|
|
||||||
//
|
|
||||||
|
|
||||||
|
|
||||||
namespace boost
|
|
||||||
{
|
|
||||||
|
|
||||||
template<class E> inline void throw_exception(E const & e)
|
|
||||||
{
|
|
||||||
throw e;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
} // namespace boost
|
|
||||||
|
|
||||||
#endif // #ifndef BOOST_THROW_EXCEPTION_HPP_INCLUDED
|
|
||||||
|
|
@ -1,73 +0,0 @@
|
||||||
// Copyright David Abrahams 2002.
|
|
||||||
// Distributed under the Boost Software License, Version 1.0. (See
|
|
||||||
// accompanying file LICENSE_1_0.txt or copy at
|
|
||||||
// http://www.boost.org/LICENSE_1_0.txt)
|
|
||||||
#ifndef WORKAROUND_DWA2002126_HPP
|
|
||||||
# define WORKAROUND_DWA2002126_HPP
|
|
||||||
|
|
||||||
// Compiler/library version workaround macro
|
|
||||||
//
|
|
||||||
// Usage:
|
|
||||||
//
|
|
||||||
// #if BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
|
|
||||||
// ... // workaround code here
|
|
||||||
// #endif
|
|
||||||
//
|
|
||||||
// When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the
|
|
||||||
// first argument must be undefined or expand to a numeric
|
|
||||||
// value. The above expands to:
|
|
||||||
//
|
|
||||||
// (BOOST_MSVC) != 0 && (BOOST_MSVC) <= 1200
|
|
||||||
//
|
|
||||||
// When used for workarounds that apply to the latest known version
|
|
||||||
// and all earlier versions of a compiler, the following convention
|
|
||||||
// should be observed:
|
|
||||||
//
|
|
||||||
// #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1301))
|
|
||||||
//
|
|
||||||
// The version number in this case corresponds to the last version in
|
|
||||||
// which the workaround was known to have been required. When
|
|
||||||
// BOOST_DETECT_OUTDATED_WORKAROUNDS is not the defined, the macro
|
|
||||||
// BOOST_TESTED_AT(x) expands to "!= 0", which effectively activates
|
|
||||||
// the workaround for any version of the compiler. When
|
|
||||||
// BOOST_DETECT_OUTDATED_WORKAROUNDS is defined, a compiler warning or
|
|
||||||
// error will be issued if the compiler version exceeds the argument
|
|
||||||
// to BOOST_TESTED_AT(). This can be used to locate workarounds which
|
|
||||||
// may be obsoleted by newer versions.
|
|
||||||
|
|
||||||
# ifndef BOOST_STRICT_CONFIG
|
|
||||||
|
|
||||||
# define BOOST_WORKAROUND(symbol, test) \
|
|
||||||
((symbol != 0) && (1 % (( (symbol test) ) + 1)))
|
|
||||||
// ^ ^ ^ ^
|
|
||||||
// The extra level of parenthesis nesting above, along with the
|
|
||||||
// BOOST_OPEN_PAREN indirection below, is required to satisfy the
|
|
||||||
// broken preprocessor in MWCW 8.3 and earlier.
|
|
||||||
//
|
|
||||||
// The basic mechanism works as follows:
|
|
||||||
// (symbol test) + 1 => if (symbol test) then 2 else 1
|
|
||||||
// 1 % ((symbol test) + 1) => if (symbol test) then 1 else 0
|
|
||||||
//
|
|
||||||
// The complication with % is for cooperation with BOOST_TESTED_AT().
|
|
||||||
// When "test" is BOOST_TESTED_AT(x) and
|
|
||||||
// BOOST_DETECT_OUTDATED_WORKAROUNDS is #defined,
|
|
||||||
//
|
|
||||||
// symbol test => if (symbol <= x) then 1 else -1
|
|
||||||
// (symbol test) + 1 => if (symbol <= x) then 2 else 0
|
|
||||||
// 1 % ((symbol test) + 1) => if (symbol <= x) then 1 else divide-by-zero
|
|
||||||
//
|
|
||||||
|
|
||||||
# ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS
|
|
||||||
# define BOOST_OPEN_PAREN (
|
|
||||||
# define BOOST_TESTED_AT(value) > value) ?(-1): BOOST_OPEN_PAREN 1
|
|
||||||
# else
|
|
||||||
# define BOOST_TESTED_AT(value) != ((value)-(value))
|
|
||||||
# endif
|
|
||||||
|
|
||||||
# else
|
|
||||||
|
|
||||||
# define BOOST_WORKAROUND(symbol, test) 0
|
|
||||||
|
|
||||||
# endif
|
|
||||||
|
|
||||||
#endif // WORKAROUND_DWA2002126_HPP
|
|
||||||
Loading…
Reference in New Issue