ZoneBuilder/Source/Plugins/vpo_dll/sys_macro.h

62 lines
1.5 KiB
C

//------------------------------------------------------------------------
// Macros
//------------------------------------------------------------------------
//
// Eureka DOOM Editor
//
// Copyright (C) 2006-2008 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 __SYS_MACRO_H__
#define __SYS_MACRO_H__
// basic macros
#ifndef NULL
#define NULL ((void*) 0)
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846
#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 I_ROUND
#define I_ROUND(x) ((int) (((x) < 0.0f) ? ((x) - 0.5f) : ((x) + 0.5f)))
#endif
#ifndef CLAMP
#define CLAMP(low,x,high) \
((x) < (low) ? (low) : (x) > (high) ? (high) : (x))
#endif
#endif /* __SYS_MACRO_H__ */
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