numpy.iinfo

class numpy.iinfo(type)[源代码]

Machine limits for integer types.

Parameters:
int_type : integer type, dtype, or instance

The kind of integer data type to get information about.

参见

finfo
The equivalent for floating point data types.

Examples

With types:

>>> ii16 = np.iinfo(np.int16)
>>> ii16.min
-32768
>>> ii16.max
32767
>>> ii32 = np.iinfo(np.int32)
>>> ii32.min
-2147483648
>>> ii32.max
2147483647

With instances:

>>> ii32 = np.iinfo(np.int32(10))
>>> ii32.min
-2147483648
>>> ii32.max
2147483647
Attributes:
bits : int

The number of bits occupied by the type.

min : int

Minimum value of given dtype.

max : int

Maximum value of given dtype.