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Title: Use "ll" for PY_FORMAT_SIZE_T on Win64
Type: behavior Stage:
Components: Interpreter Core Versions: Python 3.3, Python 3.4, Python 2.7
process
Status: closed Resolution: not a bug
Dependencies: Superseder:
Assigned To: Nosy List: scoder
Priority: normal Keywords:

Created on 2012年08月31日 05:01 by scoder, last changed 2022年04月11日 14:57 by admin. This issue is now closed.

Messages (2)
msg169500 - (view) Author: Stefan Behnel (scoder) * (Python committer) Date: 2012年08月31日 05:01
Formatting support for "lld"/"llu" was added (I think) in issue 7228, but the definition of PY_FORMAT_SIZE_T wasn't adapted. We are getting test output failures in Cython on Win64 when formatting error messages using the "Id" format, as defined by pyport.h:
"""
#ifndef PY_FORMAT_SIZE_T
# if SIZEOF_SIZE_T == SIZEOF_INT && !defined(__APPLE__)
# define PY_FORMAT_SIZE_T ""
# elif SIZEOF_SIZE_T == SIZEOF_LONG
# define PY_FORMAT_SIZE_T "l"
# elif defined(MS_WINDOWS)
# define PY_FORMAT_SIZE_T "I"
# else
# error "This platform's pyconfig.h needs to define PY_FORMAT_SIZE_T"
# endif
#endif
"""
The "%Id" format is not being resolved in the error messages and shows up in the output instead.
NumPy uses "lld" when available, starting with Py2.7:
https://github.com/numpy/numpy/blob/master/numpy/core/include/numpy/npy_common.h#L66
Shouldn't PY_FORMAT_SIZE_T become "ll" on Win64 directly?
msg169501 - (view) Author: Stefan Behnel (scoder) * (Python committer) Date: 2012年08月31日 05:49
I just saw that we were misusing PY_FORMAT_SIZE_T according to the documentation (reading that sometimes helps...). It is not supposed to be used with the Python formatting functions, only with low-level functions.
Closing, sorry for the noise.
History
Date User Action Args
2022年04月11日 14:57:35adminsetgithub: 60031
2012年08月31日 05:49:57scodersetstatus: open -> closed
resolution: not a bug
messages: + msg169501
2012年08月31日 05:01:20scodercreate

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