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//----------------------------------------------------------------------------
// MACROS
//----------------------------------------------------------------------------
//
// Z C++ Lib (C) 2001-2002 Andrew Apted
//
// This program 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.
//
// This program 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.
//
//------------------------------------------------------------------------
#ifndef __Z_MACROS_H__
#define __Z_MACROS_H__
#define CHECK_SELF_ASSIGN(param) \
if (this == ¶m) return *this;
#ifndef NULL
#define NULL ((void*) 0)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
#ifndef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
#ifndef MIN
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#endif
#ifndef ABS
#define ABS(a) ((a) < 0 ? -(a) : (a))
#endif
#ifndef SGN
#define SGN(a) ((a) < 0 ? -1 : (a) > 0 ? +1 : 0)
#endif
#ifndef CLAMP
#define CLAMP(x,low,high) \
((x) < (low) ? (low) : (x) > (high) ? (high) : (x))
#endif
#ifndef SWAP2
#define SWAP2(TYPE, a, b) \
do { TYPE _tmp; _tmp = (a); (a) = (b); (b) = _tmp; } while (0)
#endif
#endif /* __Z_MACROS_H__ */
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