0,0 → 1,62 |
// Support routines for the -*- C++ -*- dynamic memory management. |
// Copyright (C) 1997-2013 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/>. |
|
#include <bits/c++config.h> |
#include <bits/exception_defines.h> |
#include "new" |
|
using std::new_handler; |
using std::bad_alloc; |
|
extern "C" void *malloc (std::size_t); |
extern new_handler __new_handler; |
|
_GLIBCXX_WEAK_DEFINITION void * |
operator new (std::size_t sz, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT |
{ |
void *p; |
|
/* malloc (0) is unpredictable; avoid it. */ |
if (sz == 0) |
sz = 1; |
p = (void *) malloc (sz); |
while (p == 0) |
{ |
new_handler handler = __new_handler; |
if (! handler) |
return 0; |
__try |
{ |
handler (); |
} |
__catch(const bad_alloc&) |
{ |
return 0; |
} |
|
p = (void *) malloc (sz); |
} |
|
return p; |
} |