8000 gh-76961: Fix the PEP3118 format string for ctypes.Structure by eric-wieser · Pull Request #5561 · python/cpython · GitHub
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gh-76961: Fix the PEP3118 format string for ctypes.Structure #5561

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Merged
merged 10 commits into from
Feb 5, 2023
Merged

gh-76961: Fix the PEP3118 format string for ctypes.Structure #5561

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ac4e5bb
bpo-32780: Fix the PEP3118 format string for ctypes.Structure
eric-wieser Feb 6, 2018
e6021e1
Merge branch 'master' into ctypes-padding
eric-wieser Nov 28, 2019
97e9d95
Merge remote-tracking branch 'upstream/main' into ctypes-padding
eric-wieser Jul 7, 2022
6bf5a25
remove unused variable, extend documentation
eric-wieser Jul 8, 2022
3b7f14f
comment
eric-wieser Jul 8, 2022
27b1601
fix incorrect name and documentation
eric-wieser Aug 15, 2022
e300e16
remove the heap allocation as requested
eric-wieser Aug 15, 2022
7e8b4f9
Merge branch 'main' into ctypes-padding
eric-wieser Dec 23, 2022
4de7a8a
Update Misc/NEWS.d/next/Core and Builtins/2018-02-05-21-54-46.bpo-327…
eric-wieser Feb 5, 2023
26311ae
Apply suggestions from code review
eric-wieser Feb 5, 2023
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fix incorrect name and documentation
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@eric-wieser
eric-wieser committed Aug 15, 2022
commit 27b1601038a87f76f32bffbabf1877ff9345a520
6 changes: 3 additions & 3 deletions Modules/_ctypes/stgdict.c
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Original file line number Diff line number Diff line change
Expand Up @@ -341,10 +341,10 @@ MakeAnonFields(PyObject *type)
}

/*
Compute ceil(log10(x)), for the purpose of determining string lengths.
Compute `floor(log10(x)) + 1`, for the purpose of determining string lengths.
*/
static Py_ssize_t
clog10(Py_ssize_t n)
num_digits_of(Py_ssize_t n)
{
Py_ssize_t log_n = 0;
while (n > 0) {
Expand All @@ -371,7 +371,7 @@ _ctypes_alloc_format_padding(const char *prefix, Py_ssize_t padding)
}

/* decimal characters + x + null */
buf = PyMem_Malloc(clog10(padding) + 2);
buf = PyMem_Malloc(num_digits_of(padding) + 2);
if (buf == NULL) {
PyErr_NoMemory();
return NULL;
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