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// The -*- C++ -*- dynamic memory management header. |
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// Copyright (C) 1994-2013 Free Software Foundation, Inc. |
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// This file is part of GCC. |
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// |
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// GCC is free software; you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation; either version 3, or (at your option) |
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// any later version. |
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// |
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// GCC is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// Under Section 7 of GPL version 3, you are granted additional |
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// permissions described in the GCC Runtime Library Exception, version |
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// 3.1, as published by the Free Software Foundation. |
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// You should have received a copy of the GNU General Public License and |
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// a copy of the GCC Runtime Library Exception along with this program; |
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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// . |
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/** @file new |
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* This is a Standard C++ Library header. |
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* |
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* The header @c new defines several functions to manage dynamic memory and |
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* handling memory allocation errors; see |
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* http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more. |
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*/ |
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#ifndef _NEW |
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#define _NEW |
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#pragma GCC system_header |
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#include |
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#include |
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#pragma GCC visibility push(default) |
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extern "C++" { |
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namespace std |
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{ |
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/** |
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* @brief Exception possibly thrown by @c new. |
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* @ingroup exceptions |
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* |
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* @c bad_alloc (or classes derived from it) is used to report allocation |
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* errors from the throwing forms of @c new. */ |
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class bad_alloc : public exception |
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{ |
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public: |
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bad_alloc() throw() { } |
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// This declaration is not useless: |
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// http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118 |
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virtual ~bad_alloc() throw(); |
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// See comment in eh_exception.cc. |
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virtual const char* what() const throw(); |
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}; |
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struct nothrow_t { }; |
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extern const nothrow_t nothrow; |
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/** If you write your own error handler to be called by @c new, it must |
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* be of this type. */ |
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typedef void (*new_handler)(); |
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/// Takes a replacement handler as the argument, returns the |
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/// previous handler. |
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new_handler set_new_handler(new_handler) throw(); |
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} // namespace std |
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//@{ |
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/** These are replaceable signatures: |
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* - normal single new and delete (no arguments, throw @c bad_alloc on error) |
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* - normal array new and delete (same) |
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* - @c nothrow single new and delete (take a @c nothrow argument, return |
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* @c NULL on error) |
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* - @c nothrow array new and delete (same) |
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* |
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* Placement new and delete signatures (take a memory address argument, |
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* does nothing) may not be replaced by a user's program. |
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*/ |
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void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc) |
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__attribute__((__externally_visible__)); |
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void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc) |
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__attribute__((__externally_visible__)); |
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void operator delete(void*) _GLIBCXX_USE_NOEXCEPT |
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__attribute__((__externally_visible__)); |
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void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT |
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__attribute__((__externally_visible__)); |
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void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT |
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__attribute__((__externally_visible__)); |
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void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT |
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__attribute__((__externally_visible__)); |
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void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT |
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__attribute__((__externally_visible__)); |
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void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT |
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__attribute__((__externally_visible__)); |
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// Default placement versions of operator new. |
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inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT |
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{ return __p; } |
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inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT |
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{ return __p; } |
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// Default placement versions of operator delete. |
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inline void operator delete (void*, void*) _GLIBCXX_USE_NOEXCEPT { } |
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inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { } |
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//@} |
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} // extern "C++" |
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#pragma GCC visibility pop |
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#endif |