2014-12-31 19:35:01 +00:00
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# test [0,-0,1,-1] edge cases of bignum
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long_zero = (2**64) >> 65
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long_neg_zero = -long_zero
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long_one = long_zero + 1
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long_neg_one = -long_one
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cases = [long_zero, long_neg_zero, long_one, long_neg_one]
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print(cases)
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print([-c for c in cases])
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print([~c for c in cases])
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print([c >> 1 for c in cases])
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print([c << 1 for c in cases])
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2015-01-27 17:47:38 +00:00
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# comparison of 0/-0/+0
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print(long_zero == 0)
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print(long_neg_zero == 0)
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print(long_one - 1 == 0)
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print(long_neg_one + 1 == 0)
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print(long_zero < 1)
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print(long_zero < -1)
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print(long_zero > 1)
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print(long_zero > -1)
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print(long_neg_zero < 1)
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print(long_neg_zero < -1)
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print(long_neg_zero > 1)
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print(long_neg_zero > -1)
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