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63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
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//------------------------------------------------------------------------
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// Macros
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//------------------------------------------------------------------------
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//
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// Eureka DOOM Editor
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//
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// Copyright (C) 2006-2008 Andrew Apted
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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//------------------------------------------------------------------------
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#ifndef __SYS_MACRO_H__
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#define __SYS_MACRO_H__
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// basic macros
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#ifndef NULL
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#define NULL ((void*) 0)
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#endif
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifndef MAX
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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#endif
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#ifndef MIN
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#endif
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#ifndef ABS
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#define ABS(a) ((a) < 0 ? -(a) : (a))
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#endif
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#ifndef SGN
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#define SGN(a) ((a) < 0 ? -1 : (a) > 0 ? +1 : 0)
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#endif
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#ifndef I_ROUND
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#define I_ROUND(x) ((int) (((x) < 0.0f) ? ((x) - 0.5f) : ((x) + 0.5f)))
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#endif
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#ifndef CLAMP
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#define CLAMP(low,x,high) \
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((x) < (low) ? (low) : (x) > (high) ? (high) : (x))
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#endif
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#endif /* __SYS_MACRO_H__ */
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//--- editor settings ---
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// vi:ts=4:sw=4:noexpandtab
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