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Editing: newround.cpython-37.opt-1.pyc
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B �A�[ � @ sD d Z ddlmZmZmZ ddlmZmZ d dd�Zdd� Z dgZ dS ) zD ``python-future``: pure Python implementation of Python 3 round(). � )�PYPY�PY26� bind_method)�Decimal�ROUND_HALF_EVENNc C s� d}|dkrd}d}t | d�r(| �|�S |dk r8td��td�| }trbdtt| ��krbt| �} ts|t� | �j |t d �}nt | �j |t d �}|r�t |�S t|�S dS ) a� See Python 3 documentation: uses Banker's Rounding. Delegates to the __round__ method if for some reason this exists. If not, rounds a number to a given precision in decimal digits (default 0 digits). This returns an int when called with one argument, otherwise the same type as the number. ndigits may be negative. See the test_round method in future/tests/test_builtins.py for examples. FNTr � __round__z"negative ndigits not supported yetZ10Znumpy)Zrounding)�hasattrr �NotImplementedErrorr r �repr�type�floatr Z from_floatZquantizer � from_float_26�int)ZnumberZndigitsZ return_intZexponent�d� r �I/opt/alt/python37/lib/python3.7/site-packages/future/builtins/newround.py�newround s& r c C s� ddl }ddlm} t| ttf�r*t| �S |�| �s>|�| �rJtt | ��S |� d| �dkr`d}nd}t | �� � \}}dd� }||�d }||t |d| �| �}|S ) a� Converts a float to a decimal number, exactly. Note that Decimal.from_float(0.1) is not the same as Decimal('0.1'). Since 0.1 is not exactly representable in binary floating point, the value is stored as the nearest representable value which is 0x1.999999999999ap-4. The exact equivalent of the value in decimal is 0.1000000000000000055511151231257827021181583404541015625. >>> Decimal.from_float(0.1) Decimal('0.1000000000000000055511151231257827021181583404541015625') >>> Decimal.from_float(float('nan')) Decimal('NaN') >>> Decimal.from_float(float('inf')) Decimal('Infinity') >>> Decimal.from_float(-float('inf')) Decimal('-Infinity') >>> Decimal.from_float(-0.0) Decimal('-0') r N)�_dec_from_tripleg �?� c S s$ | dkr t tt| ���d S dS d S )Nr � )�len�bin�abs)r r r r � bit_lengthY s z!from_float_26.<locals>.bit_length� )�math�decimalr � isinstancer Zlongr �isinf�isnanr �copysignr �as_integer_ratio�str) �fZ_mathr Zsign�nr r �k�resultr r r r 7 s r )N) �__doc__Z future.utilsr r r r r r r r �__all__r r r r �<module> s +,
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