0 if the strings
string1 and
string2 are
identical. Otherwise, it returns the position of the first character that
does not match. The shorter string is padded on the right with
pad if necessary. The default
pad character is a blank.
COMPARE("abc","abc") --> 0
COMPARE("abc","ak") --> 2
COMPARE("ab ","ab") --> 0
COMPARE("ab ","ab"," ") --> 0
COMPARE("ab ","ab","x") --> 3
COMPARE("ab-- ","ab","-") --> 5