added towctrans

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27277 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/libroot/posix/glibc/wctype/Jamfile

@@ -12,6 +12,7 @@ SubDirSysHdrs $(HAIKU_TOP) src system libroot posix glibc ;
 
 MergeObject posix_gnu_wctype.o :
 	iswctype.c
+	towctrans.c
 	wcfuncs.c
 	wctrans.c
 	wctype.c

src/system/libroot/posix/glibc/wctype/towctrans.c

@@ -0,0 +1,36 @@
+/* Map wide character using given mapping.
+   Copyright (C) 1996, 1997, 2000, 2004 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 <wctype.h>
+
+/* Define the lookup function.  */
+#include "wchar-lookup.h"
+
+wint_t
+__towctrans (wint_t wc, wctrans_t desc)
+{
+  /* If the user passes in an invalid DESC valid (the one returned from
+     `wctrans' in case of an error) simply return the value.  */
+  if (desc == (wctrans_t) 0)
+    return wc;
+
+  return wctrans_table_lookup ((const char *) desc, wc);
+}
+libc_hidden_def (__towctrans)
+weak_alias (__towctrans, towctrans)