1 files changed, 30 insertions, 0 deletions
diff --git a/lib/unistr/u8-cmp.c b/lib/unistr/u8-cmp.c
new file mode 100644
index 00000000..77b2402d
--- /dev/null
+++ b/lib/unistr/u8-cmp.c
@@ -0,0 +1,30 @@
+/* Compare pieces of UTF-8 strings.
+   Copyright (C) 2002, 2006 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   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 "unistr.h"
+
+#include <string.h>
+
+int
+u8_cmp (const uint8_t *s1, const uint8_t *s2, size_t n)
+{
+  /* Use the fact that the UTF-8 encoding preserves lexicographic order.  */
+  return memcmp ((const char *) s1, (const char *) s2, n);
+}