Re: TCP checksum unrolling

Wed, 21 Oct 87 00:31:43 edt

> ... Some C compilers won't accept the wierd syntax below; or maybe I
> should point out, as you wretch on the floor, that there is at least ONE
> c compiler that DOES accept this syntax.

This particular piece of ugliness (switch labels inside a loop, for loop
unrolling) is known as Duff's Device, and is legitimate C that any correct
C compiler is supposed to accept.

                                Henry Spencer @ U of Toronto Zoology

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