why this testcase compile failed for gcc.

[Ian Lance Taylor]

zhang qingshan <steven.zhang54373@gmail.com> writes:

> IMO, function pointer is a pointer which its type descriptor is a
> function type ...
>
> Any difference with the normal pointer?

The C standard does not require that a function pointer use the same
representation as any other type of pointer.  In particular, on
processors with Harvard architectures, function pointers and regular
pointers are inherently different.

Ian