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Diffstat (limited to 'contrib/libstdc++/include/ext/debug_allocator.h')
| -rw-r--r-- | contrib/libstdc++/include/ext/debug_allocator.h | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/contrib/libstdc++/include/ext/debug_allocator.h b/contrib/libstdc++/include/ext/debug_allocator.h deleted file mode 100644 index 43a9a8719988d..0000000000000 --- a/contrib/libstdc++/include/ext/debug_allocator.h +++ /dev/null @@ -1,128 +0,0 @@ -// Allocators -*- C++ -*- - -// Copyright (C) 2001, 2002, 2003, 2004, 2005 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. - -/* - * 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 ext/debug_allocator.h - * This file is a GNU extension to the Standard C++ Library. - * You should only include this header if you are using GCC 3 or later. - */ - -#ifndef _DEBUG_ALLOCATOR_H -#define _DEBUG_ALLOCATOR_H 1 - -#include <stdexcept> - -_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) - - using std::size_t; - - /** - * @brief A meta-allocator with debugging bits, as per [20.4]. - * - * This is precisely the allocator defined in the C++ Standard. - * - all allocation calls operator new - * - all deallocation calls operator delete - */ - template<typename _Alloc> - class debug_allocator - { - public: - typedef typename _Alloc::size_type size_type; - typedef typename _Alloc::difference_type difference_type; - typedef typename _Alloc::pointer pointer; - typedef typename _Alloc::const_pointer const_pointer; - typedef typename _Alloc::reference reference; - typedef typename _Alloc::const_reference const_reference; - typedef typename _Alloc::value_type value_type; - - private: - // _M_extra is the number of objects that correspond to the - // extra space where debug information is stored. - size_type _M_extra; - - _Alloc _M_allocator; - - public: - debug_allocator() - { - const size_t __obj_size = sizeof(value_type); - _M_extra = (sizeof(size_type) + __obj_size - 1) / __obj_size; - } - - pointer - allocate(size_type __n) - { - pointer __res = _M_allocator.allocate(__n + _M_extra); - size_type* __ps = reinterpret_cast<size_type*>(__res); - *__ps = __n; - return __res + _M_extra; - } - - pointer - allocate(size_type __n, const void* __hint) - { - pointer __res = _M_allocator.allocate(__n + _M_extra, __hint); - size_type* __ps = reinterpret_cast<size_type*>(__res); - *__ps = __n; - return __res + _M_extra; - } - - void - deallocate(pointer __p, size_type __n) - { - if (__p) - { - pointer __real_p = __p - _M_extra; - if (*reinterpret_cast<size_type*>(__real_p) != __n) - { - throw std::runtime_error("debug_allocator::deallocate" - " wrong size"); - } - _M_allocator.deallocate(__real_p, __n + _M_extra); - } - else - throw std::runtime_error("debug_allocator::deallocate null pointer"); - } - }; - -_GLIBCXX_END_NAMESPACE - -#endif |