Oh, I&#x27;ve just closed a Haskell window, saw the title and thought &quot;how would I concatenate strings?&quot;, but I&#x27;m digressing...<p>But no, not only for for(;;). There&#x27;s also the too common array traversal:<p>while(something) a[x] = b[x++];<p>And lots and lots of ugly but useful uses in pointer arithmetics where they make things clear. They have no place in any other language, but I&#x27;d really miss both operators in C.