VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/string/RTUtf16NICmpAscii.cpp@ 81106

Last change on this file since 81106 was 76553, checked in by vboxsync, 6 years ago

scm --update-copyright-year

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.1 KB
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1/* $Id: RTUtf16NICmpAscii.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
2/** @file
3 * IPRT - RTUtf16ICmpAscii.
4 */
5
6/*
7 * Copyright (C) 2010-2019 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include <iprt/utf16.h>
32#include "internal/iprt.h"
33
34#include <iprt/assert.h>
35#include <iprt/ctype.h>
36
37
38RTDECL(int) RTUtf16NICmpAscii(PCRTUTF16 pwsz1, const char *psz2, size_t cwcMax)
39{
40 for (;;)
41 {
42 if (cwcMax == 0)
43 return 0;
44
45 RTUTF16 wc1 = *pwsz1++;
46 unsigned char uch2 = *psz2++; Assert(uch2 < 0x80);
47 if (wc1 != uch2)
48 {
49 if (wc1 >= 0x80)
50 return 1;
51 if (RT_C_TO_LOWER(wc1) != RT_C_TO_LOWER(uch2))
52 return wc1 < uch2 ? -1 : 1;
53 }
54
55 if (!uch2)
56 return 0;
57 cwcMax--;
58 }
59}
60RT_EXPORT_SYMBOL(RTUtf16NICmpAscii);
61
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