Re: Function pointer prototype interpretation


Alfonso Morra wrote:
> Hi all,
>
> I came accross this FP signature and it has me baffled.
>
> Can anyone explain this signature to me - i.e what are the input and
> output types ?
>
> void(*(*foo)(int))(int,void(*)(int))
>
> Thanks

foo -- foo
*foo -- is a pointer
(*foo)() -- to a function
(*foo)(int) -- taking one int parameter
*(*foo)(int) -- returning a pointer
(*(*foo)(int))() -- to a function
(*(*foo)(int))(int, void(*)(int)) -- taking two parameters,
one int and the other
a pointer to a function
taking one int parameter
and returning void
void (*(*foo)(int))(int, void(*)(int)) -- returning void

To summarize, foo is a pointer to a function that returns a pointer to
a function that returns void.

.

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