https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114279
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |13.3
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Ever confirmed|0 |1
Last reconfirmed| |2024-03-08
Status|UNCONFIRMED |ASSIGNED
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fix:
--- a/libstdc++-v3/include/bits/chrono_io.h
+++ b/libstdc++-v3/include/bits/chrono_io.h
@@ -2854,9 +2854,19 @@ namespace __detail
basic_string<_CharT, _Traits, _Alloc>* __abbrev = nullptr,
minutes* __offset = nullptr)
{
- sys_time<_Duration> __st;
- if (chrono::from_stream(__is, __fmt, __st, __abbrev, __offset))
- __tp = chrono::time_point_cast<_Duration>(utc_clock::from_sys(__st));
+ minutes __off{};
+ if (!__offset)
+ __offset = &__off;
+ using __format::_ChronoParts;
+ auto __need = _ChronoParts::_Year | _ChronoParts::_Month
+ | _ChronoParts::_Day | _ChronoParts::_TimeOfDay;
+ __detail::_Parser_t<_Duration> __p(__need);
+ if (__p(__is, __fmt, __abbrev, __offset))
+ {
+ auto __ut = utc_clock::from_sys(__p._M_sys_days) + __p._M_time
+ - *__offset;
+ __tp = chrono::time_point_cast<_Duration>(__ut);
+ }
return __is;
}
But we also need a change to the other from_stream overloads that are defined
in terms of utc_time, so that they don't allow 60s.
