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Diffstat (limited to '8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/cond_dealtor.hpp')
| -rw-r--r-- | 8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/cond_dealtor.hpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/cond_dealtor.hpp b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/cond_dealtor.hpp new file mode 100644 index 0000000..eb87bea --- /dev/null +++ b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/cond_dealtor.hpp @@ -0,0 +1,84 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2011 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 3, 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. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. + +// Permission to use, copy, modify, sell, and distribute this software +// is hereby granted without fee, provided that the above copyright +// notice appears in all copies, and that both that copyright notice +// and this permission notice appear in supporting documentation. None +// of the above authors, nor IBM Haifa Research Laboratories, make any +// representation about the suitability of this software for any +// purpose. It is provided "as is" without express or implied +// warranty. + +/** + * @file detail/cond_dealtor.hpp + * Contains a conditional deallocator. + */ + +#ifndef PB_DS_COND_DEALTOR_HPP +#define PB_DS_COND_DEALTOR_HPP + +namespace __gnu_pbds +{ + namespace detail + { + /// Conditional deallocate constructor argument. + template<typename Entry, typename _Alloc> + class cond_dealtor + { + typedef typename _Alloc::template rebind<Entry> __rebind_e; + + public: + typedef typename __rebind_e::other entry_allocator; + typedef typename entry_allocator::pointer entry_pointer; + + cond_dealtor(entry_pointer p_e) + : m_p_e(p_e), m_no_action_destructor(false) { } + + ~cond_dealtor() + { + if (m_no_action_destructor) + return; + s_alloc.deallocate(m_p_e, 1); + } + + void + set_no_action() + { m_no_action_destructor = true; } + + private: + entry_pointer m_p_e; + bool m_no_action_destructor; + static entry_allocator s_alloc; + }; + + template<typename Entry, class _Alloc> + typename cond_dealtor<Entry, _Alloc>::entry_allocator + cond_dealtor<Entry, _Alloc>::s_alloc; + } // namespace detail +} // namespace __gnu_pbds + +#endif // #ifndef PB_DS_COND_DEALTOR_HPP |