include/macros.h

   1 /*
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  38
  39 #ifndef _macros_h
  40 #define _macros_h
  41
  42 #include "typedefs.h" /* for real definition only */
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48 /*
  49  * With the macros below you don't
  50  * have to use an index if you don't wan't to. You can eg. use
  51  * angle.C0[23] instead if angle.c[0][23].
  52  * In a similar fashion, you can use angle.AI[3] instead of
  53  * angle.a[0][3]
  54  */
  55 #define AI      a[0]
  56 #define AJ      a[1]
  57 #define AK      a[2]
  58 #define AL      a[3]
  59 #define AM      a[4]
  60 #define C0      c[0]
  61 #define C1      c[1]
  62 #define C2      c[2]
  63 #define C3      c[3]
  64 #define C4      c[4]
  65 #define C5      c[5]
  66
  67 #ifndef min
  68 #define min(a,b) (((a) < (b)) ? (a) : (b) )
  69 #endif
  70 #ifndef max
  71 #define max(a,b) (((a) > (b)) ? (a) : (b) )
  72 #endif
  73 #ifndef even
  74 #define even(a) ( ( (a+1) / 2) == (a / 2) )
  75 #endif
  76
  77 /* This macro calculates the size of a array */
  78 #define asize(a) (sizeof(a)/sizeof((a)[0]))
  79
  80 extern const real ZERO;
  81 extern const real THIRD;
  82 extern const real HALF;
  83 extern const real ONE;
  84 extern const real TWO;
  85 extern const real THREE;
  86 extern const real SIX;
  87 extern const real TEN;
  88 extern const real TWELVE;
  89
  90 #ifdef __cplusplus
  91 }
  92 #endif
  93
  94
  95 #endif  /* _macros_h */
  96