diff -Ncr src/bin/idraw/idarrowhead.c src/bin/idraw/idarrowhead.c
*** src/bin/idraw/idarrowhead.c	Thu Dec 12 08:49:18 1991
--- src/bin/idraw/idarrowhead.c	Sat Feb  6 19:05:49 1999
***************
*** 51,56 ****
--- 51,75 ----
  
  Graphic* Arrowhead::Copy () { return new Arrowhead(_x, _y, this); }
  Graphic& Arrowhead::operator = (Graphic& g) { return Graphic::operator=(g); }
+ Arrowhead& Arrowhead::operator = (Arrowhead& a) {
+     Graphic::operator=(a);
+ 
+     _count = 0;
+     if (_y)
+ 	delete[] _y;
+     if (_x)
+ 	delete[] _x;
+     _x = _y = nil;
+     if (! a._count)
+ 	return *this;
+ 
+     _count = a._count;
+     _x = new Coord[_count];
+     _y = new Coord[_count];
+     ::memcpy(_x, a._x, sizeof(Coord) * _count);
+     ::memcpy(_y, a._y, sizeof(Coord) * _count);
+     return *this;
+ }
  
  Coord Arrowhead::CorrectedHeight (float t) {
      float w = _x[BOTRIGHT] - _x[BOTCTR];