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Diffstat (limited to 'contrib/libstdc++/include/bits/allocator.h')
-rw-r--r-- | contrib/libstdc++/include/bits/allocator.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/contrib/libstdc++/include/bits/allocator.h b/contrib/libstdc++/include/bits/allocator.h new file mode 100644 index 000000000000..c9200ecd9949 --- /dev/null +++ b/contrib/libstdc++/include/bits/allocator.h @@ -0,0 +1,130 @@ +// Allocators -*- C++ -*- + +// Copyright (C) 2001, 2002, 2003, 2004 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// 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. + +/* + * Copyright (c) 1996-1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file allocator.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +#ifndef _ALLOCATOR_H +#define _ALLOCATOR_H 1 + +// Define the base class to std::allocator. +#include <bits/c++allocator.h> + +namespace std +{ + template<typename _Tp> + class allocator; + + template<> + class allocator<void> + { + public: + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef void* pointer; + typedef const void* const_pointer; + typedef void value_type; + + template<typename _Tp1> + struct rebind + { typedef allocator<_Tp1> other; }; + }; + + /** + * @brief The "standard" allocator, as per [20.4]. + * + * (See @link Allocators allocators info @endlink for more.) + */ + template<typename _Tp> + class allocator: public ___glibcxx_base_allocator<_Tp> + { + public: + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Tp* pointer; + typedef const _Tp* const_pointer; + typedef _Tp& reference; + typedef const _Tp& const_reference; + typedef _Tp value_type; + + template<typename _Tp1> + struct rebind + { typedef allocator<_Tp1> other; }; + + allocator() throw() { } + + allocator(const allocator& a) throw() + : ___glibcxx_base_allocator<_Tp>(a) { } + + template<typename _Tp1> + allocator(const allocator<_Tp1>&) throw() { } + + ~allocator() throw() { } + + // Inherit everything else. + }; + + template<typename _T1, typename _T2> + inline bool + operator==(const allocator<_T1>&, const allocator<_T2>&) + { return true; } + + template<typename _T1, typename _T2> + inline bool + operator!=(const allocator<_T1>&, const allocator<_T2>&) + { return false; } + + // Inhibit implicit instantiations for required instantiations, + // which are defined via explicit instantiations elsewhere. + // NB: This syntax is a GNU extension. +#if _GLIBCXX_EXTERN_TEMPLATE + extern template class allocator<char>; + extern template class allocator<wchar_t>; +#endif + + // Undefine. +#undef ___glibcxx_base_allocator +} // namespace std + +#endif |