non-aggregate type question

["Jim M." <msg124 at hotmail dot com>]

does anyone knows why i am getting these errors?.
linux.
J

g++ -c circuit.cc
.
.
circuit.cc: In method `void Circuit::Checkboard ()':
circuit.cc:916: request for member `Findstart' in `this', which is of
non-aggregate type `Circuit *'
circuit.cc:921: request for member `Open' in `this', which is of
non-aggregate type `Circuit *'
.
.
void Circuit::Findstart()
{
  int x=0;
  int y=1;
  char tag ='n';

  while (tag=='n' || tag =='N')
    {
      x=x+1;
      if (x> (Breadboard.columns()-2) )
	{
	  x=1;
	  y=y+1;
	}
      tag=Breadboard(x,y).Returntype();
    }
  Start.moveTo (x,y);
}
.
.
/*returns 0 is the current componet is a void */
int Circuit::Open()
{
  int x,y;
  x= (int)Current.x();
  y= (int)Current.y();
  char tag;

  tag=Breadboard(x,y).Returntype();
  if (tag=='n' || tag=='N')
    {
      return 0;
    }
  else
    {
      return 1;
    }
}
.
.


Makefile:
prog3:prog3.o circuit.o deeqn.o point.o
	g++ -o prog3 prog3.o circuit.o deeqn.o point.o

prog3.o:prog3.cc circuit.h deeqn.h
	g++ -c prog3.cc

circuit.o: circuit.cc circuit.h array2.h component.h point.h
	g++ -c circuit.cc

point.o: point.cc point.h
	g++ -c point.cc

deeqn.o: deeqn.h deeqn.cc
	g++ -c deeqn.cc


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