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#define Power(x, y) (pow(x,y))
#define Sqrt(x) (sqrt(x))
#ifdef KRANC_C
# define Abs(x) (fabs(x))
# define Min(x, y) (fmin(x,y))
# define Max(x, y) (fmax(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 IfThen(x,y,z) ((x)*(y) + (1-(x))*(z))
#endif
#define Exp(x) (exp(x))
#define Log(x) (log(x))
#define Sin(x) (sin(x))
#define Cos(x) (cos(x))
#define Tan(x) (tan(x))
#define ArcSin(x) (asin(x))
#define ArcCos(x) (acos(x))
#define ArcTan(x) (atan(x))
#define Sinh(x) (sinh(x))
#define Cosh(x) (cosh(x))
#define Tanh(x) (tanh(x))
#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
#if 0
/* TODO: use fma(x,y,z) to implement fmadd and friends? Note that fma
may be unsupported, or may be slow. */
/* #define fmadd(x,y,z) ((x)*(y)+(z)) */
/* #define fmsub(x,y,z) ((x)*(y)-(z)) */
/* #define fnmadd(x,y,z) (-(z)-(x)*(y)) */
/* #define fnmsub(x,y,z) (+(z)-(x)*(y)) */
#define fpos(x) (+(x))
#define fneg(x) (-(x))
#define fmul(x,y) ((x)*(y))
#define fdiv(x,y) ((x)/(y))
#define fadd(x,y) ((x)+(y))
#define fsub(x,y) ((x)-(y))
#define fmadd(x,y,z) (fadd(fmul(x,y),z))
#define fmsub(x,y,z) (fsub(fmul(x,y),z))
#define fnmadd(x,y,z) (fsub(fneg(z),fmul(x,y)))
#define fnmsub(x,y,z) (fsub(z,fmul(x,y)))
#define kexp(x) (exp(x))
#define kfabs(x) (fabs(x))
#define kfmax(x,y) (fmax(x,y))
#define kfmin(x,y) (fmin(x,y))
#define klog(x) (log(x))
#define kpow(x,y) (pow(x,y))
#define ksqrt(x) (sqrt(x))
#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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