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[pushed] Use DEPRECATED_SCANF macro for remaining C99-compliant scanf functions

Message ID 20191122202011.3F8DD2816F@gnutoolchain-gerrit.osci.io
State Committed
Headers show

Commit Message

Simon Marchi (Code Review) Nov. 22, 2019, 8:20 p.m. UTC
Sourceware to Gerrit sync has submitted this change.

Change URL: https://gnutoolchain-gerrit.osci.io/r/c/glibc/+/698

Use DEPRECATED_SCANF macro for remaining C99-compliant scanf functions

When the commit

commit 03992356e6fedc5a5e9d32df96c1a2c79ea28a8f
Author: Zack Weinberg <zackw@panix.com>
Date:   Sat Feb 10 11:58:35 2018 -0500

    Use C99-compliant scanf under _GNU_SOURCE with modern compilers.

added the DEPRECATED_SCANF macro to select when redirections of *scanf
functions to their ISO C99 compliant versions should happen, it
accidentally missed doing it for vfwscanf, vwscanf, and vswscanf.

Tested for powerpc64le and with build-many-glibcs (i686-linux-gnu and
nios2-linux-gnu are failing with current master, and with this patch,
but I didn't see a regression).

Change-Id: I706b344a3fb50be017cdab9251d9da18a3ba8c60
M include/wchar.h
M libio/iovswscanf.c
M wcsmbs/wchar.h
3 files changed, 2 insertions(+), 9 deletions(-)

  Florian Weimer: Looks good to me, approved
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diff --git a/include/wchar.h b/include/wchar.h
index 2cb4495..c792b38 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -114,8 +114,6 @@ 
 libc_hidden_proto (putwc_unlocked)
 libc_hidden_proto (putwc)
-libc_hidden_proto (vswscanf)
 libc_hidden_proto (mbrtowc)
 libc_hidden_proto (wcrtomb)
 extern int __wcscmp (const wchar_t *__s1, const wchar_t *__s2)
@@ -237,11 +235,7 @@ 
 extern int __isoc99_vswscanf (const wchar_t *__restrict __s,
 			      const wchar_t *__restrict __format,
 			      __gnuc_va_list __arg) __THROW;
-extern int __vswscanf (const wchar_t *__restrict __s,
-		       const wchar_t *__restrict __format,
-		       __gnuc_va_list __arg) __THROW;
 libc_hidden_proto (__isoc99_vswscanf)
-libc_hidden_proto (__vswscanf)
 libc_hidden_proto (__isoc99_vfwscanf)
 /* Internal functions.  */
diff --git a/libio/iovswscanf.c b/libio/iovswscanf.c
index b0759ec..3876ce7 100644
--- a/libio/iovswscanf.c
+++ b/libio/iovswscanf.c
@@ -40,6 +40,4 @@ 
   FILE *f = _IO_strfile_readw (&sf, &wd, string);
   return __vfwscanf_internal (f, format, args, 0);
-libc_hidden_def (__vswscanf)
-ldbl_hidden_def (__vswscanf, vswscanf)
 ldbl_weak_alias (__vswscanf, vswscanf)
diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index 4b731eb..fc62fa3 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -685,7 +685,8 @@ 
 		     __gnuc_va_list __arg)
      __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
-# if !defined __USE_GNU \
+/* Same redirection as above for the v*wscanf family.  */
      && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
      && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
 #  ifdef __REDIRECT