real.hh

   1 #ifndef REAL_HH
   2 #define REAL_HH
   3 typedef double Real;
   4 inline Real sqr(Real x){
   5     return x*x;
   6 }
   7 inline Real MIN(Real x, Real y) {
   8     return (x < y)? x : y;
   9 }
  10
  11 inline Real MAX(Real x, Real y) {
  12     return (x > y) ? x : y;
  13 }
  14
  15 inline Real ABS(Real x)
  16 {
  17     return (x>0)? x:-x;
  18 }
  19 inline
  20 int sgn(Real x) {
  21     if (!x)return 0;
  22     return (x > 0) ?1: -1;
  23 }
  24
  25 #endif