tvl-depot/users/wpcarro/scratch/data_structures_and_algorithms/bit-manipulation.py
Vincent Ambo 019f8fd211 subtree(users/wpcarro): docking briefcase at '24f5a642'
git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c
git-subtree-split: 24f5a642af
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789
2021-12-14 02:15:47 +03:00

32 lines
529 B
Python

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))