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-rw-r--r--locale/uselocale.c52
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diff --git a/locale/uselocale.c b/locale/uselocale.c
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+/* uselocale -- fetch and set the current per-thread locale
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <locale.h>
+#include "localeinfo.h"
+
+#ifdef SHARED
+
+/* Switch the current thread's locale to DATASET.
+ If DATASET is null, instead just return the current setting.
+ The special value LC_GLOBAL_LOCALE is the initial setting
+ for all threads, and means the thread uses the global
+ setting controlled by `setlocale'. */
+locale_t
+__uselocale (locale_t newloc)
+{
+ if (newloc == NULL)
+ {
+ locale_t loc = __libc_tsd_get (LOCALE);
+ return loc == &_nl_global_locale ? LC_GLOBAL_LOCALE : loc;
+ }
+ if (newloc == LC_GLOBAL_LOCALE)
+ {
+ __libc_tsd_set (LOCALE, &_nl_global_locale);
+ return LC_GLOBAL_LOCALE;
+ }
+ __libc_tsd_set (LOCALE, newloc);
+ return newloc;
+}
+weak_alias (__uselocale, uselocale)
+
+#else
+
+# warning uselocale not implemented for static linking yet
+
+#endif