[issue18294] zlib module is not completly 64-bit safe

[STINNER Victor]

STINNER Victor added the comment:

@Serhiy: Oh, thanks for your review. My patch was far from being perfect, a review was necessary! (I hesitated to commit it directly.)

Here is a new patch using unsigned int is most places, parsing arguments with "I" format, and explicit cast to (size_t) to not compare unsigned with signed.

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Added file: http://bugs.python.org/file30699/zlib_64bit-2.patch

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<http://bugs.python.org/issue18294>
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