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#ifdef KRANC_C
# define pown(x,y) pow(x,y)
# define IfThen(x,y,z) ((x) ? (y) : (z))
#else
# define Abs(x) (abs(x))
# define Min(x, y) (min(x,y))
# define Max(x, y) (max(x,y))
# define Sqrt(x) (sqrt(x))
# define IfThen(x,y,z) ((x)*(y) + (1-(x))*(z))
#endif
#ifdef KRANC_C
# define Sign(x) (copysign(1.0,(x)))
# define ToReal(x) ((CCTK_REAL)(x))
#else
# define Sign(x) (sgn(x))
# define ToReal(x) (real((x),kind(khalf)))
#endif
#ifdef KRANC_C
# define E M_E
# define Pi M_PI
#else
# define E 2.71828182845904523536029d0
# define Pi 3.14159265358979323846264d0
#endif
#define UnitStep(x) ((x)>0)
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