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# Example using pointers to member functions
import example
# Get the pointers
area_pt = example.areapt()
perim_pt = example.perimeterpt()
print "area_pt =", area_pt
print "perim_pt = ", perim_pt
# Create some objects
c = example.Circle(4)
s = example.Square(10)
# Do some calculations
print "Circle area = ", example.do_op(c,area_pt)
print "Circle perim = ", example.do_op(c,perim_pt)
print "Square area = ", example.do_op(s,area_pt)
print "Square perim = ", example.do_op(s,perim_pt)
print "cvar.areavar =", example.cvar.areavar
print "cvar.perimetervar =", example.cvar.perimetervar
# Try the variables
print "Circle area = ", example.do_op(c,example.cvar.areavar)
print "Circle perim = ", example.do_op(c,example.cvar.perimetervar)
print "Square area = ", example.do_op(s,example.cvar.areavar)
print "Square perim = ", example.do_op(s,example.cvar.perimetervar)
# Modify one of the variables
example.cvar.areavar = perim_pt
print "Circle perimeter = ", example.do_op(c,example.cvar.areavar)
# Try the constants
print "example.AREAPT =", example.AREAPT
print "example.PERIMPT=", example.PERIMPT
print "example.NULLPT =", example.NULLPT
print "Circle area = ", example.do_op(c,example.AREAPT)
print "Circle perim = ", example.do_op(c,example.PERIMPT)
print "Square area = ", example.do_op(s,example.AREAPT)
print "Square perim = ", example.do_op(s,example.PERIMPT)
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