mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-20 11:30:18 +00:00
34 lines
1.2 KiB
Markdown
34 lines
1.2 KiB
Markdown
---
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icon: dot
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title: Arbitrary Sized Integers
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---
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Unlike cpython, pkpy's `int` is of limited precision.
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In 32 bit platforms, it is 30 bit;
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in 64 bit platforms, it is 62 bit.
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For arbitrary sized integers, we provide a builtin `long` type, just like python2's `long`.
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`long` is implemented via pure python in [_long.py](https://github.com/blueloveTH/pocketpy/blob/main/python/_long.py).
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### Create a long object
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You can use `L` suffix to create a `long` literal from a decimal literal.
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Also, you can use `long()` function to create a `long` object from a `int` object or a `str` object.
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```python
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a = 1000L
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b = long(1000)
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c = long('1000')
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assert a == b == c
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```
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```python
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a = 2L # use `L` suffix to create a `long` object
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print(a ** 1000)
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# 10715086071862673209484250490600018105614048117055336074437503883703510511249361224931983788156958581275946729175531468251871452856923140435984577574698574803934567774824230985421074605062371141877954182153046474983581941267398767559165543946077062914571196477686542167660429831652624386837205668069376L
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```
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!!!
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This feature is still under development.
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Some operations are missing, and some operations are not optimized.
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!!! |