return(-10);
return(len);
PUBLIC int UPPER8 ARGS2(int,ch1, int,ch2){    /* case-insensitive match for us-ascii */    if ((unsigned char)TOASCII(ch1) < 128 && (unsigned char)TOASCII(ch2) < 128)	return(TOUPPER(ch1) - TOUPPER(ch2));    /* case-insensitive match for upper half */    if ((unsigned char)TOASCII(ch1) > 127 &&  /* S/390 -- gil -- 2066 */	(unsigned char)TOASCII(ch2) > 127)    {	if (DisplayCharsetMatchLocale)	   return(TOUPPER(ch1) - TOUPPER(ch2)); /* old-style */	else	{	long uni_ch1 = UCTransToUni(ch1, current_char_set);	long uni_ch2 = UCTransToUni(ch2, current_char_set);	return(UniToLowerCase(uni_ch1) - UniToLowerCase(uni_ch2));	}    }    return(-10);  /* mismatch, if we come to here */}