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| author | Victor Stinner <victor.stinner@gmail.com> | 2015-03-30 10:22:16 +0200 |
|---|---|---|
| committer | Victor Stinner <victor.stinner@gmail.com> | 2015-03-30 10:22:16 +0200 |
| commit | 3a56f42aa63b0d72187825320cc5ad0bd4d22b9d (patch) | |
| tree | 7337953e7b15858815383a349a4a03f2fec0eaeb /Python/pytime.c | |
| parent | 0600ebc4d9a0fbb0f16689fb2c1d6a09482594cc (diff) | |
| download | cpython-3a56f42aa63b0d72187825320cc5ad0bd4d22b9d.tar.gz | |
Issue #22117: Try to fix rounding in conversion from Python double to _PyTime_t
using the C volatile keyword.
Diffstat (limited to 'Python/pytime.c')
| -rw-r--r-- | Python/pytime.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Python/pytime.c b/Python/pytime.c index 98f29acc38..5bf8c568e7 100644 --- a/Python/pytime.c +++ b/Python/pytime.c @@ -207,7 +207,8 @@ int _PyTime_FromSecondsObject(_PyTime_t *t, PyObject *obj, _PyTime_round_t round) { if (PyFloat_Check(obj)) { - double d, err; + /* volatile avoids unsafe optimization on float enabled by gcc -O3 */ + volatile double d, err; /* convert to a number of nanoseconds */ d = PyFloat_AsDouble(obj); |