[Python-Dev] PyArg_ParseTupe(): parse unsigned integer and check for overflow (original) (raw)
Victor Stinner victor.stinner at gmail.com
Thu Jun 27 00:07:11 CEST 2013
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Hi,
I don't understand why the B, H, I, k formats of PyArg_ParseTupe() do not check for overflow, whereas formats for signed numbers do check for overflow. What is the useful of ignoring overflow? http://docs.python.org/3/c-api/arg.html
I would to parse an integer in [0; UINT_MAX] to fix the zlib module on 64-bit system: http://bugs.python.org/issue18294
How should I implement that? Use "O" format and then use PyLong_Check(), PyLong_AsLong(), and check value <= UINT_MAX?
Victor
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