Very Computer

1. extern void (*signal(int, void (*)(int)))(int);

Subject says it all.  Can anyone explain this
prototype, piece by piece, to me?

        extern void (*signal(int, void (*)(int)))(int);

I can and do use the signal() function frequently,
but I have no idea why the compiler likes me to cast
pointers to functions as so strangely.  A successful
cal looks like:

        signal(SIGCHLD, (void(*)(int))reaper);

Although it only warns me if I don't cast it,
I'd still like to understand what all that mess
in the prototpe means.

Thanks.

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  John Siracusa  | If you only have a hammer, you tend to

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