[issue21419] Use calloc() instead of malloc() for int << int (lshift)

[STINNER Victor]

STINNER Victor added the comment:

The optimization of 2**n looks to be only useful for very large value of n, result larger than 1 MB. This use case is very rare, and you should probably use another library (GMP, numpy, or something else) for such large numbers. I close the issue.

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resolution:  -> rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21419>
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