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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/98725] Review what is disabled in libstdc++ by --disable-wchar_t
Date: Fri, 08 Oct 2021 14:48:09 +0000	[thread overview]
Message-ID: <bug-98725-4-RiorP3kggN@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98725-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98725

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The definitions of the static constants in numeric_limits<wchar_t> are define
conditionally in src/c++11/limits.cc

That seems wrong, because the specialization numeric_limits<wchar_t> is defined
unconditionally in the <limits> header. That means some uses of those constants
will result in linker errors for a --disable-wchar_t build.

However, defining them unconditionally would alter the ABI (and slightly
increase the size of libstdc++.so) for --disable-wchar_t builds, so is less
obviously the right choice than some other cases.

  parent reply	other threads:[~2021-10-08 14:48 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-18 11:08 [Bug libstdc++/98725] New: " redi at gcc dot gnu.org
2021-01-18 14:23 ` [Bug libstdc++/98725] " cvs-commit at gcc dot gnu.org
2021-01-18 14:24 ` redi at gcc dot gnu.org
2021-04-19 10:40 ` redi at gcc dot gnu.org
2021-10-08 12:03 ` redi at gcc dot gnu.org
2021-10-08 14:08 ` redi at gcc dot gnu.org
2021-10-08 14:48 ` redi at gcc dot gnu.org [this message]
2021-10-08 14:51 ` cvs-commit at gcc dot gnu.org
2021-10-08 19:12 ` redi at gcc dot gnu.org
2021-10-08 23:31 ` redi at gcc dot gnu.org
2021-10-09  0:15 ` cvs-commit at gcc dot gnu.org
2021-10-09  0:15 ` cvs-commit at gcc dot gnu.org
2021-10-09  0:15 ` cvs-commit at gcc dot gnu.org
2021-10-09  0:15 ` cvs-commit at gcc dot gnu.org
2021-10-09  0:15 ` cvs-commit at gcc dot gnu.org
2021-10-09  0:15 ` cvs-commit at gcc dot gnu.org
2021-10-09  0:16 ` redi at gcc dot gnu.org
2021-11-24 11:51 ` cvs-commit at gcc dot gnu.org

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