fixed inline sign

miscmaths.h

@@ -71,8 +71,7 @@ namespace MISCMATHS {
   int round(double x);
   
   template<class T> 
-    inline int sign(T x){ if(x!=0) return int(x / abs(x));
-    else return 1; }
+  inline int sign(T x){ if (x>0) return 1; else { if (x<0) return -1; else return 0; } }
  
   inline double pow(double x, float y) { return std::pow(x,(double) y); }
   inline double pow(float x, double y) { return std::pow((double) x,y); }