def unmarshal_long(space, u, tc):
from rpython.rlib.rbigint import rbigint
lng = u.get_int()
if lng < 0:
negative = True
lng = -lng
else:
negative = False
digits = [u.get_short() for i in range(lng)]
result = rbigint.from_list_n_bits(digits, 15)
if lng and not result.tobool():
raise oefmt(space.w_ValueError, "bad marshal data")
if negative:
result = result.neg()
return space.newlong_from_rbigint(result)
def unmarshal_long(space, u, tc):
from rpython.rlib.rbigint import rbigint
lng = u.get_int()
if lng < 0:
negative = True
lng = -lng
else:
negative = False
digits = [u.get_short() for i in range(lng)]
result = rbigint.from_list_n_bits(digits, 15)
if lng and not result.tobool():
raise oefmt(space.w_ValueError, "bad marshal data")
if negative:
result = result.neg()
return space.newlong_from_rbigint(result)
def unmarshal_Long(space, u, tc):
from rpython.rlib.rbigint import rbigint
lng = u.get_int()
if lng < 0:
negative = True
lng = -lng
else:
negative = False
digits = [u.get_short() for i in range(lng)]
result = rbigint.from_list_n_bits(digits, 15)
if lng and not result.tobool():
raise_exception(space, 'bad marshal data')
if negative:
result = result.neg()
w_long = newlong(space, result)
return w_long
for mask in masks_list:
res3 = f1.abs_rshift_and_mask(r_ulonglong(y), mask)
assert res3 == (abs(x) >> y) & mask
def test_from_list_n_bits(self):
for x in ([3L ** 30L, 5L ** 20L, 7 ** 300] +
[1L << i for i in range(130)] +
[(1L << i) - 1L for i in range(130)]):
for nbits in range(1, SHIFT+1):
mask = (1 << nbits) - 1
lst = []
got = x
while got > 0:
lst.append(int(got & mask))
got >>= nbits
f1 = rbigint.from_list_n_bits(lst, nbits)
assert f1.tolong() == x
def test_bitwise(self):
for x in gen_signs([0, 1, 5, 11, 42, 43, 3 ** 30]):
for y in gen_signs([0, 1, 5, 11, 42, 43, 3 ** 30, 3 ** 31]):
lx = rbigint.fromlong(x)
ly = rbigint.fromlong(y)
for mod in "xor and_ or_".split():
res1 = getattr(lx, mod)(ly).tolong()
res2 = getattr(operator, mod)(x, y)
assert res1 == res2
def test_int_bitwise(self):
for x in gen_signs([0, 1, 5, 11, 42, 43, 2 ** 30]):
for y in gen_signs([0, 1, 5, 11, 42, 43, 3 ** 30, 2 ** 31]):
