def iter_ones(self):
n = q = 0
while n < self.cardinality:
byte = self.data[q]
if byte & 0x55:
r = 0
while r < 8 and n < self.cardinality:
output = (byte >> r) & self.MASK
if output & 1:
yield boolfunc.num2point(n, self.inputs)
r += self.WIDTH
n += 1
else:
n += 8
q += 1
def satisfy_one(self):
n = q = 0
while n < self.cardinality:
byte = self.data[q]
if byte & 0x55:
r = 0
while r < 8 and n < self.cardinality:
output = (byte >> r) & self.MASK
if output & 1:
return boolfunc.num2point(n, self.inputs)
r += self.WIDTH
n += 1
else:
n += 8
q += 1
return None
def _iter_restrict(self, point):
inputs = list(self.inputs)
unmapped = dict()
for i, v in enumerate(self.inputs):
if v in point:
inputs[i] = point[v]
else:
unmapped[v] = i
vs = sorted(unmapped.keys())
for n in range(1 << len(vs)):
for v, val in boolfunc.num2point(n, vs).items():
inputs[unmapped[v]] = val
index = sum((val << i) for i, val in enumerate(inputs))
q, r = divmod(index * self.WIDTH, 8)
yield (self.data[q] >> r) & self.MASK
