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compare.h
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C/C++ Source or Header
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1998-03-25
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// $Id: compare.h,v 1.9 1998/03/25 12:45:26 zeller Exp $ -*- C++ -*-
// generic compare() function
// Copyright (C) 1995 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_compare_h
#define _DDD_compare_h
#ifdef __GNUG__
#pragma interface
#endif
// compare(t1, t2) returns 1/0/-1 if t1 is greater/equal/less than t2
// Was initially implemented as a template, but won't work correctly with gcc
#define DECLARE_COMPARE(T) \
inline int compare(T t1, T t2) \
{ \
if (t1 > t2) \
return 1; \
else if (t1 < t2) \
return -1; \
else \
return 0; \
}
DECLARE_COMPARE(int)
DECLARE_COMPARE(unsigned int)
DECLARE_COMPARE(long)
DECLARE_COMPARE(unsigned long)
DECLARE_COMPARE(short)
DECLARE_COMPARE(unsigned short)
DECLARE_COMPARE(char)
// DECLARE_COMPARE(signed char)
DECLARE_COMPARE(unsigned char)
DECLARE_COMPARE(float)
DECLARE_COMPARE(double)
inline int compare(void *t1, void *t2)
{
return compare((unsigned long)t1, (unsigned long)t2);
}
#undef DECLARE_COMPARE
#endif // _DDD_compare_h
// DON'T ADD ANYTHING BEHIND THIS #endif