Performs an insensitive-case comparison between n characters from string1 and string2 to determine the alphabetic order.
int strnicmp( constchar *string1, const char *string2, size_t num);
||The first string that is compared.
||The second string that is compared.
||The number of characters to compare.
Returns a value indicating the lexicographical relation between the strings:
||string1 is less than string2
||string1 is the same as string2
||string1 is greater than string2