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/*===========================================================================
* Filename : strcasecmp.c
* About : Fallback replacement for strcasecmp(3)
*
* Copyright (C) 2005-2006 YAMAMOTO Kengo <yamaken AT bp.iij4u.or.jp>
* Copyright (c) 2007-2008 SigScheme Project <uim-en AT googlegroups.com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of authors nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
* IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
===========================================================================*/
#include <config.h>
#include "sigscheme.h"
#include "sigschemeinternal.h"
/*=======================================
File Local Macro Definitions
=======================================*/
/*=======================================
File Local Type Definitions
=======================================*/
/*=======================================
Variable Definitions
=======================================*/
/*=======================================
File Local Function Declarations
=======================================*/
/*=======================================
Function Definitions
=======================================*/
SCM_EXPORT int
scm_strcasecmp(const char *s1, const char *s2)
{
unsigned char c1, c2;
SCM_ASSERT(s1);
SCM_ASSERT(s2);
for (;;) {
c1 = (unsigned char)*s1++;
c2 = (unsigned char)*s2++;
if (!c1 && !c2)
return 0;
c1 = ICHAR_FOLDCASE(c1);
c2 = ICHAR_FOLDCASE(c2);
if (c1 > c2)
return 1;
if (c1 < c2)
return -1;
}
}
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