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+/* Counting the multibyte characters in a string.
+ Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2007.
+
+ This program 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 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+/* Specification. */
+#include <string.h>
+
+#include <stdlib.h>
+
+#include "mbiter.h"
+
+/* Return the number of multibyte characters in the character string starting
+ at STRING and ending at STRING + LEN. */
+size_t
+mbsnlen (const char *string, size_t len)
+{
+ if (MB_CUR_MAX > 1)
+ {
+ size_t count;
+ mbi_iterator_t iter;
+
+ count = 0;
+ for (mbi_init (iter, string, len); mbi_avail (iter); mbi_advance (iter))
+ count++;
+
+ return count;
+ }
+ else
+ return len;
+}