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gh-97786: Fix compiler warnings in pytime.c #101826

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Merged
merged 3 commits into from
Feb 20, 2023
Merged

gh-97786: Fix compiler warnings in pytime.c #101826

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622ec0a
Fix compiler warnings in pytime.c
mdickinson Feb 11, 2023
32aee25
Add news
mdickinson Feb 11, 2023
c381e4c
Add note on nans; remove unnecessary asserts
mdickinson Feb 12, 2023
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Add note on nans; remove unnecessary asserts
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@mdickinson
mdickinson committed Feb 12, 2023
commit c381e4c1170fe02efcde3a7d61719e4aecbf741c
6 changes: 3 additions & 3 deletions Python/pytime.c
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Original file line number Diff line number Diff line change
Expand Up @@ -311,8 +311,10 @@ pytime_double_to_denominator(double d, time_t *sec, long *numerator,
assumption that time_t is a two's complement integer type with no trap
representation, and that `PY_TIME_T_MIN` is within the representable
range of a C double.

Note: we want the `if` condition below to be true for NaNs; therefore,
resist any temptation to simplify by applying De Morgan's laws.
*/
assert(fmod(intpart, 1.0) == 0.0);
if (!((double)PY_TIME_T_MIN <= intpart && intpart < -(double)PY_TIME_T_MIN)) {
pytime_time_t_overflow();
return -1;
Expand Down Expand Up @@ -369,7 +371,6 @@ _PyTime_ObjectToTime_t(PyObject *obj, time_t *sec, _PyTime_round_t round)
(void)modf(d, &intpart);

/* See comments in pytime_double_to_denominator */
assert(fmod(intpart, 1.0) == 0.0);
if (!((double)PY_TIME_T_MIN <= intpart && intpart < -(double)PY_TIME_T_MIN)) {
pytime_time_t_overflow();
return -1;
Expand Down Expand Up @@ -537,7 +538,6 @@ pytime_from_double(_PyTime_t *tp, double value, _PyTime_round_t round,
d = pytime_round(d, round);

/* See comments in pytime_double_to_denominator */
assert(fmod(d, 1.0) == 0.0);
if (!((double)_PyTime_MIN <= d && d < -(double)_PyTime_MIN)) {
pytime_time_t_overflow();
return -1;
Expand Down