1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
import virtual_poly
d = virtual_poly.NDouble(3.5)
i = virtual_poly.NInt(2)
#
# the copy methods return the right polymorphic types
#
dc = d.copy()
ic = i.copy()
if d.get() != dc.get():
raise RuntimeError
if i.get() != ic.get():
raise RuntimeError
virtual_poly.incr(ic)
if (i.get() + 1) != ic.get():
raise RuntimeError
dr = d.ref_this()
if d.get() != dr.get():
raise RuntimeError
#
# 'narrowing' also works
#
ddc = virtual_poly.NDouble_narrow(d.nnumber())
if d.get() != ddc.get():
raise RuntimeError
dic = virtual_poly.NInt_narrow(i.nnumber())
if i.get() != dic.get():
raise RuntimeError
|
