49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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/*----------------------------------------------------------------------
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* spwmacro.h -- cpp macros we ALWAYS use.
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*
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<<<<<<< spwmacro.h
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* $Id: spwmacro.h,v 1.3 2001/01/16 01:18:40 HJin Exp $
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=======
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* $Id: spwmacro.h,v 1.3 2001/01/16 01:18:40 HJin Exp $
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>>>>>>> 1.1.1.1.4.1
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*
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* We always seem to use the same macros.
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* This is the place we define them.
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*
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*----------------------------------------------------------------------
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*/
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#ifndef SPWMACRO_H
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#define SPWMACRO_H
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#define SPW_FALSE (0)
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#define SPW_TRUE (!SPW_FALSE)
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#define SPW_MAX(a,b) (((a)>(b))?(a):(b))
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#define SPW_MIN(a,b) (((a)<(b))?(a):(b))
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#define SPW_ABS(a) (((a)<0)?(-(a)):(a))
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#define SPW_SIGN(a) ((a)>=0?1:-1)
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#define SPW_BIND(min,n,max) (SPW_MIN((max),SPW_MAX((min),(n))))
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#define SPW_NUM_ELEMENTS_IN(a) (sizeof(a)/sizeof((a)[0]))
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#define SPW_PI 3.14159265358979324f
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#define SPW_DEG_TO_RAD(d) ((d)*SPW_PI/180.0f)
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#define SPW_RAD_TO_DEG(r) ((r)*180.0f/SPW_PI)
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#define SPW_LENGTH_OF(a) (sizeof(a)/sizeof((a)[0]))
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#define SPW_END_OF(a) (&(a)[SPW_LENGTH_OF(a)-1])
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#define SPW_SQ(a) ((a)*(a))
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#define SPW_ABSDIFF(a, b) (fabs((double) (a) - (b)))
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#endif
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