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diff --git a/gnulib b/gnulib
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diff --git a/gnulib/lib/wcsrchr-impl.h b/gnulib/lib/wcsrchr-impl.h
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+/* Search wide string for a wide character.
+ Copyright (C) 1999, 2011 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 1999.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+wchar_t *
+wcsrchr (const wchar_t *wcs, wchar_t wc)
+{
+ /* Calling wcslen and then searching from the other end would cause more
+ memory accesses. Avoid that, at the cost of a few more comparisons. */
+ wchar_t *result = NULL;
+
+ for (;; wcs++)
+ {
+ if (*wcs == wc)
+ result = (wchar_t *) wcs;
+ if (*wcs == (wchar_t)'\0')
+ break;
+ }
+ return result;
+}