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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.
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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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6
Modules/_datetimemodule.c
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@ -6637,19 +6637,19 @@ _datetime_exec(PyObject *module)
/* A 4-year cycle has an extra leap day over what we'd get from
* pasting together 4 single years.
*/
Py_BUILD_ASSERT(DI4Y == 4 * 365 + 1);
static_assert(DI4Y == 4 * 365 + 1, "DI4Y");
assert(DI4Y == days_before_year(4+1));
/* Similarly, a 400-year cycle has an extra leap day over what we'd
* get from pasting together 4 100-year cycles.
*/
Py_BUILD_ASSERT(DI400Y == 4 * DI100Y + 1);
static_assert(DI400Y == 4 * DI100Y + 1, "DI400Y");
assert(DI400Y == days_before_year(400+1));
/* OTOH, a 100-year cycle has one fewer leap day than we'd get from
* pasting together 25 4-year cycles.
*/
Py_BUILD_ASSERT(DI100Y == 25 * DI4Y - 1);
static_assert(DI100Y == 25 * DI4Y - 1, "DI100Y");
assert(DI100Y == days_before_year(100+1));
us_per_ms = PyLong_FromLong(1000);