[Bug stdio/18542] New: swscanf vswscanf

[Bug stdio/18542] New: swscanf vswscanf

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18542

            Bug ID: 18542
           Summary: swscanf vswscanf
           Product: glibc
           Version: 2.21
            Status: NEW
          Severity: normal
          Priority: P2
         Component: stdio
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
  Target Milestone: ---

swscanf (added in C90 Amendment 1, present in UNIX98) calls vswscanf (added in
C99, not in C90 Amendment 1 or UNIX98).

[initial] swscanf -> [libc.a(swscanf.o)] vswscanf

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[Bug stdio/18542] swscanf vswscanf namespace

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18542

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|swscanf vswscanf            |swscanf vswscanf namespace

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[Bug stdio/18542] swscanf vswscanf namespace

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18542

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
       via  45dcd79f6eb37ad4e9e6967f1d459ffc3629eb1f (commit)
      from  eb1fae6a450b3cce5a75c1ed1a734520c56a6457 (commit)

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=45dcd79f6eb37ad4e9e6967f1d459ffc3629eb1f

commit 45dcd79f6eb37ad4e9e6967f1d459ffc3629eb1f
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Jun 17 20:15:22 2015 +0000

    Fix swscanf vswscanf namespace (bug 18542).

    swscanf (added in C90 Amendment 1, present in UNIX98) calls vswscanf
    (added in C99, not in C90 Amendment 1 or UNIX98).  This patch fixes
    this by using __vswscanf instead and making vswscanf into a weak
    alias.

    (I intend to add conform/ test support for C90 Amendment 1 - and
    various other standard versions supported by glibc but not yet by
    conform/ tests - at some point, once the results for currently tested
    standards are cleaner.)

    Tested for x86_64 and x86 (testsuite, and that installed stripped
    shared libraries are unchanged by the patch).

        [BZ #18542]
        * libio/iovswscanf.c (__vswscanf): Use libc_hidden_def.
        (vswscanf): Use ldbl_weak_alias instead of ldbl_strong_alias
        * include/wchar.h (__vswscanf): Declare.  Use libc_hidden_proto.
        * libio/swscanf.c (__swscanf): Call __vswscanf instead of
        vswscanf.
        * conform/Makefile (test-xfail-UNIX98/wchar.h/linknamespace):
        Remove variable.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog          |    9 +++++++++
 NEWS               |    2 +-
 conform/Makefile   |    1 -
 include/wchar.h    |    4 ++++
 libio/iovswscanf.c |    3 ++-
 libio/swscanf.c    |    2 +-
 6 files changed, 17 insertions(+), 4 deletions(-)

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[Bug stdio/18542] swscanf vswscanf namespace

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18542

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
Fixed for 2.22.

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