1 files changed, 66 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/RTUtf16NCmp.cpp b/src/VBox/Runtime/common/string/RTUtf16NCmp.cpp
new file mode 100644
index 00000000..9aec6c82
--- /dev/null
+++ b/src/VBox/Runtime/common/string/RTUtf16NCmp.cpp
@@ -0,0 +1,66 @@
+/* $Id: RTUtf16NCmp.cpp $ */
+/** @file
+ * IPRT - RTUtf16NCmp.
+ */
+
+/*
+ * Copyright (C) 2010-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/utf16.h>
+#include "internal/iprt.h"
+
+
+RTDECL(int) RTUtf16NCmp(PCRTUTF16 pwsz1, PCRTUTF16 pwsz2, size_t cwcMax)
+{
+    if (pwsz1 == pwsz2)
+        return 0;
+    if (!pwsz1)
+        return -1;
+    if (!pwsz2 || !cwcMax)
+        return 1;
+
+    while (cwcMax-- > 0)
+    {
+        RTUTF16 wcs = *pwsz1;
+        int     iDiff = wcs - *pwsz2;
+        if (iDiff || !wcs)
+            return iDiff;
+        pwsz1++;
+        pwsz2++;
+    }
+    return 0;
+}
+RT_EXPORT_SYMBOL(RTUtf16NCmp);
+