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def test(x, i):
return x & (1 << i) != 0
def set(x, i):
return x | (1 << i)
def clear(x, i):
return x & ~(1 << i)
def toggle(x, i):
if test(x, i):
return clear(x, i)
else:
return set(x, i)
def test_single(x):
if x == 0:
return False
else:
return x & (x - 1) == 0
print(test(0b1010, 3))
print('{0:b}'.format(set(0b1010, 1)))
print('{0:b}'.format(clear(0b1010, 1)))
print('{0:b}'.format(toggle(0b1010, 2)))
print(test_single(0b1010))
print(test_single(0b1000))
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