[Cython] Fix integer width constant names in stdint.pxd
mansourmoufid at gmail.com
Tue Jan 3 02:37:34 CET 2012
Now my issue is as follows.
(I CCed the cython-users list if this question is more appropriate there.)
I have a simple file, int.pyx:
from libc.stdint cimport *
with the usual setup.py stuff. Compiling and running:
$ python setup.py build_ext --inplace
int.c:566:3: warning: overflow in implicit constant conversion [-Woverflow]
$ python -c 'import int'
So obviously there are overflows here. Checking int.c, I see:
* from libc.stdint cimport *
* print long(UINT8_MAX) # <<<<<<<<<<<<<<
* print long(UINT16_MAX)
* print long(UINT32_MAX)
__pyx_t_1 = PyInt_FromLong(UINT8_MAX);
and so on...
PyInt_FromLong is used for all these constants, regardless of
signedness or width, so any argument larger than LONG_MAX overflows,
*before* being converted to the arbitrary-size Python integer type.
I don't know if this is a bug, or if I'm overlooking something. Is
there a way for me to use these constants with Python's arbitrary-size
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