globalfunc.h

   1 #ifndef GLOBALFUNC_H
   2 #define GLOBALFUNC_H
   3
   4 namespace botor
   5 {
   6         template<typename T>  inline int sign( T a )
   7         {
   8                 return (a == 0) ? 0 : ( (a<0) ? -1 : 1 );
   9         }
  10
  11         double dst( float x1, float y1, float x2, float y2 );
  12
  13         bool isBitSet( unsigned int mask, unsigned int bit );
  14
  15         template<unsigned int N>
  16         struct Bitmask
  17         {
  18                 static const unsigned int v = 1 << N;
  19         };
  20 }
  21
  22 #endif