+ _PDCLIB_ctype_t * ctype = _PDCLIB_threadlocale()->_CType;
+
+ while ( ( *s1 ) && ( ctype[(unsigned char)*s1].collation == ctype[(unsigned char)*s2].collation ) )
+ {
+ ++s1;
+ ++s2;
+ }
+ return ( ctype[(unsigned char)*s1].collation == ctype[(unsigned char)*s2].collation );