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-rw-r--r--wcsmbs/wcsspn.c45
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+/* Copyright (C) 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <wcstr.h>
+
+
+/* Return the length of the maximum initial segment
+ of WCS which contains only wide-characters in ACCEPT. */
+size_t
+wcsspn (wcs, accept)
+ const wchar_t *wcs;
+ const wchar_t *accept;
+{
+ register const wchar_t *p;
+ register const wchar_t *a;
+ register size_t count = 0;
+
+ for (p = wcs; *p != L'\0'; ++p)
+ {
+ for (a = accept; *a != L'\0'; ++a)
+ if (*p == *a)
+ break;
+ if (*a == L'\0')
+ return count;
+ else
+ ++count;
+ }
+
+ return count;
+}