# Example using pointers to member functions

from member_pointer import *

def check(what, expected, actual):
  if expected != actual:
    raise RuntimeError ("Failed: " , what , " Expected: " , expected , " Actual: " , actual)

# Get the pointers

area_pt = areapt()
perim_pt = perimeterpt()

# Create some objects

s = Square(10)

# Do some calculations

check ("Square area ", 100.0, do_op(s,area_pt))
check ("Square perim", 40.0, do_op(s,perim_pt))

memberPtr = cvar.areavar
memberPtr = cvar.perimetervar

# Try the variables
check ("Square area ", 100.0, do_op(s,cvar.areavar))
check ("Square perim", 40.0, do_op(s,cvar.perimetervar))

# Modify one of the variables
cvar.areavar = perim_pt

check ("Square perimeter", 40.0, do_op(s,cvar.areavar))

# Try the constants

memberPtr = AREAPT
memberPtr = PERIMPT
memberPtr = NULLPT

check ("Square area ", 100.0, do_op(s,AREAPT))
check ("Square perim", 40.0, do_op(s,PERIMPT))