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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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4
Python/initconfig.c
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@ -1507,9 +1507,11 @@ config_get_xoption_value(const PyConfig *config, wchar_t *name)
static PyStatus
config_init_hash_seed(PyConfig *config)
{
static_assert(sizeof(_Py_HashSecret_t) == sizeof(_Py_HashSecret.uc),
"_Py_HashSecret_t has wrong size");
const char *seed_text = config_get_env(config, "PYTHONHASHSEED");
Py_BUILD_ASSERT(sizeof(_Py_HashSecret_t) == sizeof(_Py_HashSecret.uc));
/* Convert a text seed to a numeric one */
if (seed_text && strcmp(seed_text, "random") != 0) {
const char *endptr = seed_text;