blob: 5eb16e79cfd2a0a856f975a1c2c7171140106e84 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
# test parsing of floats
inf = float('inf')
# it shouldn't matter where the decimal point is if the exponent balances the value
print(float('1234') - float('0.1234e4'))
print(float('1.015625') - float('1015625e-6'))
# very large integer part with a very negative exponent should cancel out
print('%.4e' % float('9' * 60 + 'e-60'))
print('%.4e' % float('9' * 60 + 'e-40'))
# many fractional digits
print(float('.' + '9' * 70))
print(float('.' + '9' * 70 + 'e20'))
print(float('.' + '9' * 70 + 'e-50') == float('1e-50'))
# tiny fraction with large exponent
print(float('.' + '0' * 60 + '1e10') == float('1e-51'))
print(float('.' + '0' * 60 + '9e25'))
print(float('.' + '0' * 60 + '9e40'))
# ensure that accuracy is retained when value is close to a subnormal
print(float('1.00000000000000000000e-37'))
print(float('10.0000000000000000000e-38'))
print(float('100.000000000000000000e-39'))
|
