reactos/sdk/lib/crt/mbstring/mbsicmp.c

64 lines
1.3 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* FILE: lib/sdk/crt/mbstring/mbsicmp.c
* PURPOSE: Duplicates a multi byte string
* PROGRAMER: Ariadne
* UPDATE HISTORY:
* 12/04/99: Created
*/
#include <precomp.h>
#include <mbstring.h>
/*
* @implemented
*/
int _mbsicmp(const unsigned char *str1, const unsigned char *str2)
{
unsigned char *s1 = (unsigned char *)str1;
unsigned char *s2 = (unsigned char *)str2;
unsigned short *short_s1, *short_s2;
int l1, l2;
do {
if (*s1 == 0)
break;
l1 = _ismbblead(*s1);
l2 = _ismbblead(*s2);
if ( !l1 && !l2 ) {
if (toupper(*s1) != toupper(*s2))
return toupper(*s1) - toupper(*s2);
else {
s1 += 1;
s2 += 1;
}
}
else if ( l1 && l2 ){
short_s1 = (unsigned short *)s1;
short_s2 = (unsigned short *)s2;
if ( _mbctoupper(*short_s1) != _mbctoupper(*short_s2 ))
return _mbctoupper(*short_s1) - _mbctoupper(*short_s2);
else {
s1 += 2;
s2 += 2;
}
}
else
return *s1 - *s2;
} while (*s1 != 0);
return 0;
while (toupper(*s1) == toupper(*s2))
{
if (*s1 == 0)
return 0;
s1++;
s2++;
}
return toupper(*(unsigned const char *)s1) - toupper(*(unsigned const char *)(s2));
}