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/* $Id: RTStrNCmp.cpp $ */
/** @file
* IPRT - RTStrNCmp.
*/
/*
* Copyright (C) 2006-2023 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/string.h>
#include "internal/iprt.h"
RTDECL(int) RTStrNCmp(const char *psz1, const char *psz2, size_t cchMax)
{
if (psz1 == psz2)
return 0;
if (!psz1)
return -1;
if (!psz2)
return 1;
#ifdef RT_OS_SOLARIS
/* Solaris: tstUtf8 found to fail for some RTSTR_MAX on testboxsh1:
solaris.amd64 v5.10 (Generic_142901-12 (Assembled 30 March 2009)). */
while (cchMax-- > 0)
{
char ch1 = *psz1++;
char ch2 = *psz2++;
if (ch1 != ch2)
return ch1 > ch2 ? 1 : -1;
else if (ch1 == 0)
break;
}
return 0;
#else
return strncmp(psz1, psz2, cchMax);
#endif
}
RT_EXPORT_SYMBOL(RTStrNCmp);
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