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my-alloca.h
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C/C++ Source or Header
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1998-07-06
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// $Id: my-alloca.h,v 1.1 1998/07/06 11:27:44 zeller Exp $ -*- C++ -*-
// Declare `alloca()' properly
// Copyright (C) 1998 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD 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 of the License, or (at your option) any later version.
//
// DDD 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 DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
#ifndef _DDD_my_alloca_h
#define _DDD_my_alloca_h
#include "config.h"
// Check for alloca()
// AIX requires this to be the first thing in the file.
#ifdef __GNUC__
#define alloca(size) __builtin_alloca(size)
#elif HAVE_ALLOCA_H
#include <alloca.h> // This should give us a declaration
#elif defined(_AIX)
#pragma alloca
#else /* not AIX */
#include <stdlib.h> // In GNU libc, alloca is declared here
#if !defined(alloca) && !HAVE_ALLOCA_DECL
extern "C" char *alloca(unsigned int size);
#endif /* no alloca decl */
#endif /* not AIX */
#endif // _DDD_my_alloca_h
// DON'T ADD ANYTHING BEHIND THIS #endif