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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/77760] get_time needs to set tm_wday amd tm_yday
Date: Wed, 15 Dec 2021 19:43:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D77760

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Can we have any state passed around?
_M_extract_via_format can have some extra reference argument to some state =
like
glibc has passed through it, but wouldn't that work only for the recursive
calls?
E.g. if one uses get with "%r" format or some other one that recurses and
contains everything to recompute the fields, we could recompute them.
But if get itself contains a format string, then each format specifier in it
seems to be required to be processed separately by
https://eel.is/c++draft/locale.time.get#members-8.4
- a virtual method which has standard mandated arguments is called for each
format specifier, so it is unclear how to carry some state around the parsi=
ng
of the whole format string.=