math_ops.h

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#ifndef _MATH_OPS_H_
#define _MATH_OPS_H_

#include <math.h>

#define min(a,b) ((a)<(b)?(a):(b))

#define max(a,b) ((a)>(b)?(a):(b))

#define min3(a,b,c) min(min((a),(b)),min((b),(c)))

#define max3(a,b,c) max(max((a),(b)),max((b),(c)))

#define absolute(a) ((a)<0?-(a):(a))

#define raiseto(x,a) (exp((a)*log(x)))

#define raiseto_int(y,x,a) \
  { \
    int arraycounter; \
    y = x; \
    for (arraycounter=1; arraycounter<a; arraycounter++) { \
      y *= x; \
    } \
  }

#define sign(a) ((a)<0?-1.0:1.0)

#endif