diff -r 9c8e464ed940 -r 5b46af577b23 src/lemon/xy.h
--- a/src/lemon/xy.h	Mon Apr 25 16:22:04 2005 +0000
+++ b/src/lemon/xy.h	Tue Apr 26 15:50:30 2005 +0000
@@ -67,81 +67,81 @@
       ///Gives back the square of the norm of the vector
       T normSquare() const {
 	return x*x+y*y;
-      };
+      }
   
       ///Increments the left hand side by u
       xy<T>& operator +=(const xy<T>& u) {
 	x += u.x;
 	y += u.y;
 	return *this;
-      };
+      }
   
       ///Decrements the left hand side by u
       xy<T>& operator -=(const xy<T>& u) {
 	x -= u.x;
 	y -= u.y;
 	return *this;
-      };
+      }
 
       ///Multiplying the left hand side with a scalar
       xy<T>& operator *=(const T &u) {
 	x *= u;
 	y *= u;
 	return *this;
-      };
+      }
 
       ///Dividing the left hand side by a scalar
       xy<T>& operator /=(const T &u) {
 	x /= u;
 	y /= u;
 	return *this;
-      };
+      }
   
       ///Returns the scalar product of two vectors
       T operator *(const xy<T>& u) const {
 	return x*u.x+y*u.y;
-      };
+      }
   
       ///Returns the sum of two vectors
       xy<T> operator+(const xy<T> &u) const {
 	xy<T> b=*this;
 	return b+=u;
-      };
+      }
 
       ///Returns the neg of the vectors
       xy<T> operator-() const {
 	xy<T> b=*this;
 	b.x=-b.x; b.y=-b.y;
 	return b;
-      };
+      }
 
       ///Returns the difference of two vectors
       xy<T> operator-(const xy<T> &u) const {
 	xy<T> b=*this;
 	return b-=u;
-      };
+      }
 
       ///Returns a vector multiplied by a scalar
       xy<T> operator*(const T &u) const {
 	xy<T> b=*this;
 	return b*=u;
-      };
+      }
 
       ///Returns a vector divided by a scalar
       xy<T> operator/(const T &u) const {
 	xy<T> b=*this;
 	return b/=u;
-      };
+      }
 
       ///Testing equality
       bool operator==(const xy<T> &u) const {
 	return (x==u.x) && (y==u.y);
-      };
+      }
 
       ///Testing inequality
       bool operator!=(xy u) const {
 	return  (x!=u.x) || (y!=u.y);
-      };
+      }
 
     };
 
@@ -151,7 +151,7 @@
   ///\relates xy
   template<typename T> xy<T> operator*(const T &u,const xy<T> &x) {
     return x*u;
-  };
+  }
 
   ///Read a plainvector from a stream
 
@@ -226,55 +226,60 @@
 	return _empty;
       }
 
+      ///Makes the BoundingBox empty
+      void clear() {
+	_empty=1;
+      }
+
       ///Gives back the bottom left corner (if the bounding box is empty, then the return value is not defined) 
       xy<T> bottomLeft() const {
 	return bottom_left;
-      };
+      }
 
       ///Gives back the top right corner (if the bounding box is empty, then the return value is not defined) 
       xy<T> topRight() const {
 	return top_right;
-      };
+      }
 
       ///Gives back the bottom right corner (if the bounding box is empty, then the return value is not defined) 
       xy<T> bottomRight() const {
 	return xy<T>(top_right.x,bottom_left.y);
-      };
+      }
 
       ///Gives back the top left corner (if the bounding box is empty, then the return value is not defined) 
       xy<T> topLeft() const {
 	return xy<T>(bottom_left.x,top_right.y);
-      };
+      }
 
       ///Gives back the bottom of the box (if the bounding box is empty, then the return value is not defined) 
       T bottom() const {
 	return bottom_left.y;
-      };
+      }
 
       ///Gives back the top of the box (if the bounding box is empty, then the return value is not defined) 
       T top() const {
 	return top_right.y;
-      };
+      }
 
       ///Gives back the left side of the box (if the bounding box is empty, then the return value is not defined) 
       T left() const {
 	return bottom_left.x;
-      };
+      }
 
       ///Gives back the right side of the box (if the bounding box is empty, then the return value is not defined) 
       T right() const {
 	return top_right.x;
-      };
+      }
 
       ///Gives back the height of the box (if the bounding box is empty, then the return value is not defined) 
       T height() const {
 	return top_right.y-bottom_left.y;
-      };
+      }
 
       ///Gives back the width of the box (if the bounding box is empty, then the return value is not defined) 
       T width() const {
 	return top_right.x-bottom_left.x;
-      };
+      }
 
       ///Checks whether a point is inside a bounding box
       bool inside(const xy<T>& u){
@@ -299,13 +304,13 @@
 	  if (top_right.y < u.y) top_right.y = u.y;
 	}
 	return *this;
-      };
+      }
   
       ///Sums a bounding box and a point
       BoundingBox operator +(const xy<T>& u){
 	BoundingBox b = *this;
 	return b += u;
-      };
+      }
 
       ///Increments a bounding box with an other bounding box
       BoundingBox& operator +=(const BoundingBox &u){
@@ -314,13 +319,13 @@
 	  *this += u.topRight();
 	}
 	return *this;
-      };
+      }
   
       ///Sums two bounding boxes
       BoundingBox operator +(const BoundingBox& u){
 	BoundingBox b = *this;
 	return b += u;
-      };
+      }
 
     };//class Boundingbox