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Diffstat (limited to '9/sources/cxx-stl/gnu-libstdc++/4.9/include/new')
-rw-r--r-- | 9/sources/cxx-stl/gnu-libstdc++/4.9/include/new | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/9/sources/cxx-stl/gnu-libstdc++/4.9/include/new b/9/sources/cxx-stl/gnu-libstdc++/4.9/include/new new file mode 100644 index 0000000..a65a0b8 --- /dev/null +++ b/9/sources/cxx-stl/gnu-libstdc++/4.9/include/new @@ -0,0 +1,159 @@ +// The -*- C++ -*- dynamic memory management header. + +// Copyright (C) 1994-2014 Free Software Foundation, Inc. + +// 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(); + }; + +#if __cplusplus >= 201103L + class bad_array_new_length : public bad_alloc + { + public: + bad_array_new_length() throw() { }; + + // This declaration is not useless: + // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118 + virtual ~bad_array_new_length() throw(); + + // See comment in eh_exception.cc. + virtual const char* what() const throw(); + }; +#endif + + // We throw this exception for GNU VLAs of negative length in all C++ + // dialects, so declare it if we aren't in strict conformance mode. +#if __cplusplus > 201103L || !defined(__STRICT_ANSI__) + class bad_array_length : public bad_alloc + { + public: + bad_array_length() throw() { }; + + // This declaration is not useless: + // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118 + virtual ~bad_array_length() throw(); + + // See comment in eh_exception.cc. + virtual const char* what() const throw(); + }; +#endif + + 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(); + +#if __cplusplus >= 201103L + /// Return the current new handler. + new_handler get_new_handler() noexcept; +#endif +} // 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) _GLIBCXX_THROW (std::bad_alloc) + __attribute__((__externally_visible__)); +void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc) + __attribute__((__externally_visible__)); +void operator delete(void*) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); + +// Default placement versions of operator new. +inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT +{ return __p; } +inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT +{ return __p; } + +// Default placement versions of operator delete. +inline void operator delete (void*, void*) _GLIBCXX_USE_NOEXCEPT { } +inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { } +//@} +} // extern "C++" + +#pragma GCC visibility pop + +#endif |