# test parsing of floats, requiring double-precision # very large integer part with a very negative exponent should cancel out print(float('9' * 400 + 'e-100')) print(float('9' * 400 + 'e-200')) print(float('9' * 400 + 'e-400')) # many fractional digits print(float('.' + '9' * 400)) print(float('.' + '9' * 400 + 'e100')) print(float('.' + '9' * 400 + 'e-100')) # tiny fraction with large exponent print('%.14e' % float('.' + '0' * 400 + '9e100')) print('%.14e' % float('.' + '0' * 400 + '9e200')) print('%.14e' % float('.' + '0' * 400 + '9e400')) # ensure that accuracy is retained when value is close to a subnormal print(float('1.00000000000000000000e-307')) print(float('10.0000000000000000000e-308')) print(float('100.000000000000000000e-309'))