Files
QNX/lib/compat/linux/memicmp.c
2025-08-20 19:02:58 +08:00

47 lines
1.3 KiB
C

/*
* $QNXLicenseC:
* Copyright 2007, QNX Software Systems. All Rights Reserved.
*
* You must obtain a written license from and pay applicable license fees to QNX
* Software Systems before you may reproduce, modify or distribute this software,
* or any work that includes all or part of this software. Free development
* licenses are available for evaluation and non-commercial purposes. For more
* information visit http://licensing.qnx.com or email licensing@qnx.com.
*
* This file may contain contributions from others. Please review this entire
* file for other proprietary rights or license notices, as well as the QNX
* Development Suite License Guide at http://licensing.qnx.com/license-guide/
* for other information.
* $
*/
#include <string.h>
int _memicmp( const void *_s1, const void *_s2, size_t len )
{
return( memicmp( _s1, _s2, len ) );
}
int memicmp( const void *_s1, const void *_s2, size_t len )
{
const unsigned char *s1 = _s1;
const unsigned char *s2 = _s2;
unsigned char c1;
unsigned char c2;
for( ;; ) {
if( len == 0 ) return( 0 );
c1 = *s1;
c2 = *s2;
if( c1 >= 'A' && c1 <= 'Z' ) c1 += 'a' - 'A';
if( c2 >= 'A' && c2 <= 'Z' ) c2 += 'a' - 'A';
if( c1 != c2 ) return( *s1 - *s2 );
++s1;
++s2;
--len;
}
}