Intel Extensible Firmware Interface - page 245

Unicode Collation Protocol
Version 1.02 12/12/00 227
13.1.1 UNICODE_COLLATION.StriColl()
Summary
Performs a case-insensitive comparison of two Null-terminated Unicode strings.
Prototype
INTN
(EFIAPI *EFI_UNICODE_COLLATION_STRICOLL) (
IN UNICODE_COLLATION_INTERFACE *This,
IN CHAR16 *s1,
IN CHAR16 *s2
);
Parameters
This A pointer to the UNICODE_COLLATION instance. Type
UNICODE_COLLATION_INTERFACE is defined in
Section 13.1.
s1 A pointer to a Null-terminated Unicode string.
s2 A pointer to a Null-terminated Unicode string.
Description
The StriColl() function performs a case-insensitive comparison of two Null-terminated
Unicode strings.
This function performs a case-insensitive comparison between the Unicode string s1 and the
Unicode string s2 using the rules for the language codes that this protocol instance supports. If s1
is equivalent to s2, then 0 is returned. If s1 is lexically less than s2, then a negative number will
be returned. If s1 is lexically greater than s2, then a positive number will be returned. This
function allows Unicode strings to be compared and sorted.
Status Codes Returned
0 s1 is equivalent to s2.
> 0 s1 is lexically greater than s2.
< 0 s1 is lexically less than s2.