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# Example using pointers to member functions
member_pointer
function check(what,expected,actual)
if (expected != actual)
error ("Failed: %s, Expected: %f, Actual: %f",what,expected,actual);
endif
end
# 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));
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