include/types/ishift.h

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  38
  39
  40 /* not really neccesary, right now: */
  41 #ifdef __cplusplus
  42 extern "C" {
  43 #endif
  44
  45
  46 #define D_BOX_Z 1
  47 #define D_BOX_Y 1
  48 #define D_BOX_X 2
  49 #define N_BOX_Z (2*D_BOX_Z+1)
  50 #define N_BOX_Y (2*D_BOX_Y+1)
  51 #define N_BOX_X (2*D_BOX_X+1)
  52 #define N_IVEC  (N_BOX_Z*N_BOX_Y*N_BOX_X)
  53 #define CENTRAL (N_IVEC/2)
  54 #define SHIFTS  N_IVEC
  55
  56 #define XYZ2IS(x, y, z) (N_BOX_X*(N_BOX_Y*((z)+D_BOX_Z)+(y)+D_BOX_Y)+(x)+D_BOX_X)
  57 #define IVEC2IS(iv)   (XYZ2IS((iv)[XX], (iv)[YY], (iv)[ZZ]))
  58 #define IS2X(iv)      (((iv) % N_BOX_X) - D_BOX_X)
  59 #define IS2Y(iv)      ((((iv) / N_BOX_X) % N_BOX_Y) - D_BOX_Y)
  60 #define IS2Z(iv)      ((iv) / (N_BOX_X*N_BOX_Y) - D_BOX_Z)
  61
  62
  63 #ifdef __cplusplus
  64 }
  65 #endif