32 lines
685 B
Python
32 lines
685 B
Python
# test [0,-0,1,-1] edge cases of bignum
|
|
|
|
import skip_if
|
|
skip_if.no_bigint()
|
|
|
|
long_zero = (2**64) >> 65
|
|
long_neg_zero = -long_zero
|
|
long_one = long_zero + 1
|
|
long_neg_one = -long_one
|
|
|
|
cases = [long_zero, long_neg_zero, long_one, long_neg_one]
|
|
|
|
print(cases)
|
|
print([-c for c in cases])
|
|
print([~c for c in cases])
|
|
print([c >> 1 for c in cases])
|
|
print([c << 1 for c in cases])
|
|
|
|
# comparison of 0/-0/+0
|
|
print(long_zero == 0)
|
|
print(long_neg_zero == 0)
|
|
print(long_one - 1 == 0)
|
|
print(long_neg_one + 1 == 0)
|
|
print(long_zero < 1)
|
|
print(long_zero < -1)
|
|
print(long_zero > 1)
|
|
print(long_zero > -1)
|
|
print(long_neg_zero < 1)
|
|
print(long_neg_zero < -1)
|
|
print(long_neg_zero > 1)
|
|
print(long_neg_zero > -1)
|