| // The -*- C++ -*- dynamic memory management header. |
| |
| // Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
| // 2003, 2004, 2005, 2006, 2007, 2009, 2010 |
| // Free Software Foundation |
| |
| // This file is part of GCC. |
| // |
| // GCC 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. |
| // |
| // GCC 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/>. |
| |
| /** @file new |
| * This is a Standard C++ Library header. |
| * |
| * The header @c new defines several functions to manage dynamic memory and |
| * handling memory allocation errors; see |
| * http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more. |
| */ |
| |
| #ifndef _NEW |
| #define _NEW |
| |
| #pragma GCC system_header |
| |
| #include <bits/c++config.h> |
| #include <exception> |
| |
| #pragma GCC visibility push(default) |
| |
| extern "C++" { |
| |
| namespace std |
| { |
| /** |
| * @brief Exception possibly thrown by @c new. |
| * @ingroup exceptions |
| * |
| * @c bad_alloc (or classes derived from it) is used to report allocation |
| * errors from the throwing forms of @c new. */ |
| class bad_alloc : public exception |
| { |
| public: |
| bad_alloc() throw() { } |
| |
| // This declaration is not useless: |
| // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118 |
| virtual ~bad_alloc() throw(); |
| |
| // See comment in eh_exception.cc. |
| virtual const char* what() const throw(); |
| }; |
| |
| struct nothrow_t { }; |
| |
| extern const nothrow_t nothrow; |
| |
| /** If you write your own error handler to be called by @c new, it must |
| * be of this type. */ |
| typedef void (*new_handler)(); |
| |
| /// Takes a replacement handler as the argument, returns the |
| /// previous handler. |
| new_handler set_new_handler(new_handler) throw(); |
| } // namespace std |
| |
| //@{ |
| /** These are replaceable signatures: |
| * - normal single new and delete (no arguments, throw @c bad_alloc on error) |
| * - normal array new and delete (same) |
| * - @c nothrow single new and delete (take a @c nothrow argument, return |
| * @c NULL on error) |
| * - @c nothrow array new and delete (same) |
| * |
| * Placement new and delete signatures (take a memory address argument, |
| * does nothing) may not be replaced by a user's program. |
| */ |
| void* operator new(std::size_t) throw (std::bad_alloc); |
| void* operator new[](std::size_t) throw (std::bad_alloc); |
| void operator delete(void*) throw(); |
| void operator delete[](void*) throw(); |
| void* operator new(std::size_t, const std::nothrow_t&) throw(); |
| void* operator new[](std::size_t, const std::nothrow_t&) throw(); |
| void operator delete(void*, const std::nothrow_t&) throw(); |
| void operator delete[](void*, const std::nothrow_t&) throw(); |
| |
| // Default placement versions of operator new. |
| inline void* operator new(std::size_t, void* __p) throw() { return __p; } |
| inline void* operator new[](std::size_t, void* __p) throw() { return __p; } |
| |
| // Default placement versions of operator delete. |
| inline void operator delete (void*, void*) throw() { } |
| inline void operator delete[](void*, void*) throw() { } |
| //@} |
| } // extern "C++" |
| |
| #pragma GCC visibility pop |
| |
| #endif |