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gh-91731: Replace Py_BUILD_ASSERT() with static_assert() (#91730)

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Python 3.11 now uses C11 standard which adds static_assert()
to <assert.h>.

* In pytime.c, replace Py_BUILD_ASSERT() with preprocessor checks on
  SIZEOF_TIME_T with #error.
* On macOS, py_mach_timebase_info() now accepts timebase members with
  the same size than _PyTime_t.
* py_get_monotonic_clock() now saturates GetTickCount64() to
  _PyTime_MAX: GetTickCount64() is unsigned, whereas _PyTime_t is
  signed.
This commit is contained in:
Victor Stinner 2022-04-20 19:26:40 +02:00 • committed by GitHub
parent ad3ca17ff5
commit 7cdaf87ec5
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10 changed files with 68 additions and 38 deletions
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12
Modules/posixmodule.c
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@ -2381,7 +2381,8 @@ _pystat_fromstructstat(PyObject *module, STRUCT_STAT *st)
return NULL;
PyStructSequence_SET_ITEM(v, 0, PyLong_FromLong((long)st->st_mode));
Py_BUILD_ASSERT(sizeof(unsigned long long) >= sizeof(st->st_ino));
static_assert(sizeof(unsigned long long) >= sizeof(st->st_ino),
"stat.st_ino is larger than unsigned long long");
PyStructSequence_SET_ITEM(v, 1, PyLong_FromUnsignedLongLong(st->st_ino));
#ifdef MS_WINDOWS
PyStructSequence_SET_ITEM(v, 2, PyLong_FromUnsignedLong(st->st_dev));
@ -2396,7 +2397,8 @@ _pystat_fromstructstat(PyObject *module, STRUCT_STAT *st)
PyStructSequence_SET_ITEM(v, 4, _PyLong_FromUid(st->st_uid));
PyStructSequence_SET_ITEM(v, 5, _PyLong_FromGid(st->st_gid));
#endif
Py_BUILD_ASSERT(sizeof(long long) >= sizeof(st->st_size));
static_assert(sizeof(long long) >= sizeof(st->st_size),
"stat.st_size is larger than long long");
PyStructSequence_SET_ITEM(v, 6, PyLong_FromLongLong(st->st_size));
#if defined(HAVE_STAT_TV_NSEC)
@ -13761,10 +13763,12 @@ _Py_COMP_DIAG_POP
self->win32_file_index = stat.st_ino;
self->got_file_index = 1;
}
Py_BUILD_ASSERT(sizeof(unsigned long long) >= sizeof(self->win32_file_index));
static_assert(sizeof(unsigned long long) >= sizeof(self->win32_file_index),
"DirEntry.win32_file_index is larger than unsigned long long");
return PyLong_FromUnsignedLongLong(self->win32_file_index);
#else /* POSIX */
Py_BUILD_ASSERT(sizeof(unsigned long long) >= sizeof(self->d_ino));
static_assert(sizeof(unsigned long long) >= sizeof(self->d_ino),
"DirEntry.d_ino is larger than unsigned long long");
return PyLong_FromUnsignedLongLong(self->d_ino);
#endif
}