I always wondered why I get a compiler message for the following code snipped:
---------------------------------------------------------------------------- function Match(M,F : UTF8String) : boolean; var i : Cardinal; ... if i+length(M)<length(F) then ... ---------------------------------------------------------------------------- For the last code line I get: unit1.pas(1097,14) Hint: Mixing signed expressions and longwords gives a 64bit result But where are signed expressions involved? i is Cardinal (so it cannot be negative) and the two length-statements can also never be negative. There is no substraction so why this message? Anybody knows?
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