1 files changed, 63 insertions, 0 deletions
diff --git a/wcsmbs/mbscmp.c b/wcsmbs/mbscmp.c
new file mode 100644
index 0000000000..04f6f473b9
--- /dev/null
+++ b/wcsmbs/mbscmp.c
@@ -0,0 +1,63 @@
+/* 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 <mbstr.h>
+#include <stdlib.h>
+
+#define __need_wchar_t
+/* FIXME: should be defined in stddef.h.
+!!! #define __need_uwchar_t  */
+typedef unsigned int uwchar_t;
+#include <stddef.h>
+
+
+/* Compare MBS1 and MBS2.  */
+int
+mbscmp (mbs1, mbs2)
+    const char *mbs1;
+    const char *mbs2;
+{
+  int len1 = 0;
+  int len2 = 0;
+  uwchar_t c1;
+  uwchar_t c2;
+
+  /* Reset multibyte characters to their initial state.	 */
+  (void) mblen ((char *) NULL, 0);
+
+  do
+    {
+      len1 = mbtowc ((wchar_t *) &c1, mbs1, MB_CUR_MAX);
+      len2 = mbtowc ((wchar_t *) &c2, mbs2, MB_CUR_MAX);
+
+      if (len1 == 0)
+	return len2 == 0 ? 0 : -1;
+      if (len2 == 0)
+	return 1;
+      if (len1 < 0 || len2 < 0)
+	/* FIXME: an illegal character appears.	 What to do?  */
+	return c1 - c2;
+
+      mbs1 += len1;
+      mbs2 += len2;
+    }
+  while (c1 == c2);
+
+  return c1 - c2;
+}
+