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// Support routines for the -*- C++ -*- dynamic memory management.

// Copyright (C) 1997-2015 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

// .

#include 

#include 

#include "new"

using std::new_handler;

using std::bad_alloc;

extern "C" void *malloc (std::size_t);

_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;

  while (__builtin_expect ((p = malloc (sz)) == 0, false))

    {

      new_handler handler = std::get_new_handler ();

      if (! handler)

	return 0;

      __try

	{

	  handler ();

	}

      __catch(const bad_alloc&)

	{

	  return 0;

	}

    }

  return p;

}