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* [Bug libstdc++/99556] New: time_get<wchar_t>::date_order() returns no_order on en_US - it should return mdy
@ 2021-03-11 16:46 lewis at sophists dot com
2021-03-11 17:12 ` [Bug libstdc++/99556] " redi at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: lewis at sophists dot com @ 2021-03-11 16:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99556
Bug ID: 99556
Summary: time_get<wchar_t>::date_order() returns no_order on
en_US - it should return mdy
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: lewis at sophists dot com
Target Milestone: ---
Created attachment 50367
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50367&action=edit
locale_time_get_date_order_no_order_Buggy.cpp
According to
https://en.cppreference.com/w/cpp/locale/time_get/date_order
the 'date_order' field for the locale en_US should be MDY;
libstdc++ appears to understand this emprirically from how it parses dates.
However, the value returned by time_get<wchar_t>::date_order() is 'no_order'
instead of 'mdy'.
This behavior APPEARS faulty given the above documentation.
I would not this behavior is also DIFFERENT than libc++ (clangs library) and
differnt from visual studios implmenetation which all return the (apparently)
correct mdy value.
Compile with
g++ locale_time_get_date_order_no_order_Buggy.cpp
will happen with any compiler version, but I tested on the latest ubuntu with
g++ (Ubuntu 10.2.0-13ubuntu1) 10.2.0
Reproducing file is attached.
note - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=9635 appears to be a
similar report, but is almost 20 years old.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug libstdc++/99556] time_get<wchar_t>::date_order() returns no_order on en_US - it should return mdy
2021-03-11 16:46 [Bug libstdc++/99556] New: time_get<wchar_t>::date_order() returns no_order on en_US - it should return mdy lewis at sophists dot com
@ 2021-03-11 17:12 ` redi at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: redi at gcc dot gnu.org @ 2021-03-11 17:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99556
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to lewis pringle from comment #0)
> note - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=9635 appears to be a
> similar report, but is almost 20 years old.
But it's still the same bug.
*** This bug has been marked as a duplicate of bug 9635 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-03-11 16:46 [Bug libstdc++/99556] New: time_get<wchar_t>::date_order() returns no_order on en_US - it should return mdy lewis at sophists dot com
2021-03-11 17:12 ` [Bug libstdc++/99556] " redi at gcc dot gnu.org
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