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28 lines
567 B
Python
Executable File
28 lines
567 B
Python
Executable File
#!/usr/bin/env python
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__author__ = "bt3"
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''' Get a bit in a binary number:
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1) Shifts 1 over by i bits
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2) make an AND with the number
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3) all the other than the bit at i are clean, now compare to 0
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4) if the new value is not 0, bit i is 1
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'''
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def get_bit(num, i):
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mask = 1 << i
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return num & mask != 0
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if __name__ == '__main__':
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num = int('0100100', 2)
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get_bit(num, 0) # 0
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get_bit(num, 1) # 0
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get_bit(num, 2) # 1
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get_bit(num, 3) # 0
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get_bit(num, 4) # 0
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get_bit(num, 5) # 1
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get_bit(num, 6) # 0
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