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author | obrien <obrien@FreeBSD.org> | 2002-05-28 16:16:03 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 2002-05-28 16:16:03 +0000 |
commit | 0895e1acb698e05d503c26bec5471de2e88b7d93 (patch) | |
tree | 7b14e1142a8f8cf48f311f5246aa3b355f2380b6 /contrib/libstdc++/libsupc++/new | |
parent | efbfe7b228c18b8cc364aabaefd6f8253bc6b5ad (diff) | |
download | FreeBSD-src-0895e1acb698e05d503c26bec5471de2e88b7d93.zip FreeBSD-src-0895e1acb698e05d503c26bec5471de2e88b7d93.tar.gz |
Gcc 3.1.0 pre-release's C++ support bits from the FSF anoncvs repo
on 9-May-2002 15:57:15 EDT.
Diffstat (limited to 'contrib/libstdc++/libsupc++/new')
-rw-r--r-- | contrib/libstdc++/libsupc++/new | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/contrib/libstdc++/libsupc++/new b/contrib/libstdc++/libsupc++/new new file mode 100644 index 0000000..afa603a --- /dev/null +++ b/contrib/libstdc++/libsupc++/new @@ -0,0 +1,94 @@ +// The -*- C++ -*- dynamic memory management header. + +// Copyright (C) 1994, 1996, 1997, 1998, 2000, 2001, 2002 +// Free Software Foundation + +// This file is part of GNU CC. +// +// GNU CC 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. +// +// GNU CC 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 GNU CC; 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. + +/** @file new + * 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__ + +#include <cstddef> +#include <exception> + +extern "C++" { + +namespace std +{ + /** @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(); + }; + + 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); +} // 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; } +//@} +} // extern "C++" + +#endif |