本文整理汇总了Python中pypy.rlib.rbigint.rbigint.fromint函数的典型用法代码示例。如果您正苦于以下问题：Python fromint函数的具体用法？Python fromint怎么用？Python fromint使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了fromint函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_parse_digit_string
def test_parse_digit_string(self):
from pypy.rlib.rbigint import parse_digit_string
class Parser:
def __init__(self, base, sign, digits):
self.base = base
self.sign = sign
self.next_digit = iter(digits + [-1]).next
x = parse_digit_string(Parser(10, 1, [6]))
assert x.eq(rbigint.fromint(6))
x = parse_digit_string(Parser(10, 1, [6, 2, 3]))
assert x.eq(rbigint.fromint(623))
x = parse_digit_string(Parser(10, -1, [6, 2, 3]))
assert x.eq(rbigint.fromint(-623))
x = parse_digit_string(Parser(16, 1, [0xA, 0x4, 0xF]))
assert x.eq(rbigint.fromint(0xA4F))
num = 0
for i in range(36):
x = parse_digit_string(Parser(36, 1, range(i)))
assert x.eq(rbigint.fromlong(num))
num = num * 36 + i
x = parse_digit_string(Parser(16, -1, range(15,-1,-1)*99))
assert x.eq(rbigint.fromlong(long('-0x' + 'FEDCBA9876543210'*99, 16)))
assert x.tobool() is True
x = parse_digit_string(Parser(7, 1, [0, 0, 0]))
assert x.tobool() is False
x = parse_digit_string(Parser(7, -1, [0, 0, 0]))
assert x.tobool() is False示例2: test_order
def test_order(self):
f6 = rbigint.fromint(6)
f7 = rbigint.fromint(7)
assert (f6.lt(f6), f6.lt(f7), f7.lt(f6)) == (0,1,0)
assert (f6.le(f6), f6.le(f7), f7.le(f6)) == (1,1,0)
assert (f6.gt(f6), f6.gt(f7), f7.gt(f6)) == (0,0,1)
assert (f6.ge(f6), f6.ge(f7), f7.ge(f6)) == (1,0,1)示例3: test_uintmask
def test_uintmask(self):
assert rbigint.fromint(-1).uintmask() == r_uint(-1)
assert rbigint.fromint(0).uintmask() == r_uint(0)
assert (rbigint.fromint(sys.maxint).uintmask() ==
r_uint(sys.maxint))
assert (rbigint.fromlong(sys.maxint+1).uintmask() ==
r_uint(-sys.maxint-1))示例4: test_floordiv
def test_floordiv(self):
for op1 in [-12, -2, -1, 1, 2, 50]:
for op2 in [-4, -2, -1, 1, 2, 8]:
rl_op1 = rbigint.fromint(op1)
rl_op2 = rbigint.fromint(op2)
r1 = rl_op1.floordiv(rl_op2)
r2 = op1 // op2
assert r1.tolong() == r2示例5: test_truediv
def test_truediv(self):
for op1 in [-12, -2, -1, 1, 2, 50]:
for op2 in [-4, -2, -1, 1, 2, 8]:
rl_op1 = rbigint.fromint(op1)
rl_op2 = rbigint.fromint(op2)
r1 = rl_op1.truediv(rl_op2)
r2 = op1 / op2
assert r1 == r2示例6: test_pow
def test_pow(self):
for op1 in [-50, -12, -2, -1, 1, 2, 50, 52]:
for op2 in [0, 1, 2, 8, 9, 10, 11]:
rl_op1 = rbigint.fromint(op1)
rl_op2 = rbigint.fromint(op2)
r1 = rl_op1.pow(rl_op2)
r2 = op1 ** op2
assert r1.tolong() == r2示例7: test_mod
def test_mod(self):
for op1 in [-50, -12, -2, -1, 1, 2, 50, 52]:
for op2 in [-4, -2, -1, 1, 2, 8]:
rl_op1 = rbigint.fromint(op1)
rl_op2 = rbigint.fromint(op2)
r1 = rl_op1.mod(rl_op2)
r2 = op1 % op2
assert r1.tolong() == r2示例8: test_simple
def test_simple(self):
for op1 in [-2, -1, 0, 1, 2, 50]:
for op2 in [-2, -1, 0, 1, 2, 50]:
rl_op1 = rbigint.fromint(op1)
rl_op2 = rbigint.fromint(op2)
for op in "add sub mul".split():
r1 = getattr(rl_op1, op)(rl_op2)
r2 = getattr(operator, op)(op1, op2)
assert r1.tolong() == r2示例9: test_add
def test_add(self):
x = rbigint.fromint(-2147483647)
y = rbigint.fromint(-1)
z = rbigint.fromint(-2147483648)
def test():
return x.add(y).eq(z)
assert test()
res = interpret(test, [])
assert res示例10: test_bigint_w
def test_bigint_w(self):
space = self.space
fromlong = lobj.W_LongObject.fromlong
assert isinstance(space.bigint_w(fromlong(42)), rbigint)
assert space.bigint_w(fromlong(42)).eq(rbigint.fromint(42))
assert space.bigint_w(fromlong(-1)).eq(rbigint.fromint(-1))
w_obj = space.wrap("hello world")
space.raises_w(space.w_TypeError, space.bigint_w, w_obj)
w_obj = space.wrap(123.456)
space.raises_w(space.w_TypeError, space.bigint_w, w_obj)示例11: test_bigint_w
def test_bigint_w():
space = CPyObjSpace()
r1 = space.bigint_w(space.newlong(42))
assert isinstance(r1, rbigint)
assert r1.eq(rbigint.fromint(42))
# cpython digit size
assert space.bigint_w(space.newlong(2**8)).eq(rbigint.fromint(2**8))
# rpython digit size
assert space.bigint_w(space.newlong(2**15)).eq(rbigint.fromint(2**15))
# and negative numbers
assert space.bigint_w(space.newlong(-1)).eq(rbigint.fromint(-1))
assert space.bigint_w(space.newlong(-2**8)).eq(rbigint.fromint(-2**8))
assert space.bigint_w(space.newlong(-2**15)).eq(rbigint.fromlong(-2**15))示例12: _PyLong_FromByteArray
def _PyLong_FromByteArray(space, bytes, n, little_endian, signed):
little_endian = rffi.cast(lltype.Signed, little_endian)
signed = rffi.cast(lltype.Signed, signed)
result = rbigint()
negative = False
for i in range(0, n):
if little_endian:
c = intmask(bytes[i])
else:
c = intmask(bytes[n - i - 1])
if i == 0 and signed and c & 0x80:
negative = True
if negative:
c = c ^ 0xFF
digit = rbigint.fromint(c)
result = result.lshift(8)
result = result.add(digit)
if negative:
result = result.neg()
return space.newlong_from_rbigint(result)示例13: immutable_unique_id
def immutable_unique_id(self, space):
if self.user_overridden_class:
return None
from pypy.objspace.std.model import IDTAG_LONG as tag
b = space.bigint_w(self)
b = b.lshift(3).or_(rbigint.fromint(tag))
return space.newlong_from_rbigint(b)示例14: pow__Long_Long_None
def pow__Long_Long_None(space, w_long1, w_long2, w_long3):
# XXX need to replicate some of the logic, to get the errors right
if w_long2.num.lt(rbigint.fromint(0)):
raise FailedToImplementArgs(
space.w_ValueError,
space.wrap("long pow() too negative"))
return W_LongObject(w_long1.num.pow(w_long2.num, None))示例15: imod
def imod( self, other ):
if self.bvalue:
if other.bvalue:
return HybridCell( 0, self.bvalue.mod( other.bvalue ) )
else:
o = rbigint.fromint(other.ivalue)
v = self.bvalue.mod( o )
return HybridCell( 0, v )
else:
if other.bvalue:
s = rbigint.fromint(self.ivalue)
v = s.mod( other.bvalue )
return HybridCell( 0, v )
else:
v = self.ivalue % other.ivalue
return HybridCell( v )