| 1 | /* $Id: strncmp.cpp 93135 2022-01-06 22:02:15Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - CRT Strings, strncmp().
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #include <iprt/string.h>
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| 28 |
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| 29 | #ifdef _MSC_VER
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| 30 | _CRTIMP int __cdecl strncmp
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| 31 | #elif defined(__WATCOMC__) && !defined(IPRT_NO_CRT)
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| 32 | _WCRTLINK int std::strncmp
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| 33 | #else
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| 34 | int strncmp
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| 35 | #endif
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| 36 | (const char *pszStr1, const char *pszStr2, size_t cb)
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| 37 | #if defined(__THROW) && !defined(RT_OS_WINDOWS) && !defined(RT_OS_OS2)
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| 38 | __THROW
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| 39 | #endif
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| 40 | {
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| 41 | while (cb-- > 0)
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| 42 | {
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| 43 | char const ch1 = *pszStr1++;
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| 44 | int const iDiff = ch1 - *pszStr2++;
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| 45 | if (iDiff)
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| 46 | return iDiff;
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| 47 | if (!ch1)
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| 48 | break;
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| 49 | }
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| 50 | return 0;
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| 51 | }
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