def f(x, y):
x = r_uint(x)
y = r_uint(y)
rnd = Random(x)
rnd.init_by_array([x, y])
rnd.jumpahead(intmask(y))
return float(rnd.genrand32()) + rnd.random()
def f(x, y):
x = r_uint(x)
y = r_uint(y)
rnd = Random(x)
rnd.init_by_array([x, y])
rnd.jumpahead(intmask(y))
return float(rnd.genrand32()) + rnd.random()
def test_jumpahead_badstate():
rnd = Random()
s, j = 4043161618, 2674112291824205302
rnd.init_by_array([s])
rnd.jumpahead(j)
for i in range(500):
r = rnd.random()
assert r <= 1.0, (r, i)
def test_jumpahead_badstate():
rnd = Random()
s, j = 4043161618, 2674112291824205302
rnd.init_by_array([s])
rnd.jumpahead(j)
for i in range(500):
r = rnd.random()
assert r <= 1.0, (r, i)
def test_jumpahead():
rnd = Random()
rnd.state = [r_uint(0)] * N
rnd.state[0] = r_uint(1)
cpyrandom = _random.Random()
cpyrandom.setstate(tuple([int(s) for s in rnd.state] + [rnd.index]))
rnd.jumpahead(100)
cpyrandom.jumpahead(100)
assert tuple(rnd.state) + (rnd.index, ) == cpyrandom.getstate()
def test_jumpahead():
rnd = Random()
rnd.state = [r_uint(0)] * N
rnd.state[0] = r_uint(1)
cpyrandom = _random.Random()
cpyrandom.setstate(tuple([int(s) for s in rnd.state] + [rnd.index]))
rnd.jumpahead(100)
cpyrandom.jumpahead(100)
assert tuple(rnd.state) + (rnd.index, ) == cpyrandom.getstate()
def rrandom_example():
rnd1 = Random()
print rnd1.genrand32() # get a 32-bit random number
print rnd1.random() # get a float random number x, 0.0 <= x < 1.0
seed = 1546979228
rnd2 = Random(seed) # set a seed
print rnd2.random()
print rnd1.state # you can access the internal state of the generator
# change the internal state to one different from and likely far away from
# the current state, n is a non-negative integer which is used to scramble
# the current state vector.
n = 10
rnd1.jumpahead(n)
rnd1.random()
