Calling functions through a C function pointer questoin

Jonathan Wakely jwakely.gcc@gmail.com
Thu Oct 12 21:07:00 GMT 2017


On 12 October 2017 at 18:18, Toshi Morita via gcc-help
<gcc-help@gcc.gnu.org> wrote:
> This isn't a GCC question specifically - it's more of a C language question.
>
> I'm involved in a discussion involving C language function pointers.
> The other party claims calling functions through a function pointer is "undefined behavior" because it's not specifically mentioned in the C language spec.
> This seems silly, because this is a common language feature used by bytecode interpreters, JITs, etc.
>
> Can someone clarify that calling functions through a function pointer is not "undefined behavior"?
>
> Please CC me on replies as I'm not subscribed to the list. Thanks in advance.
>
> Toshi

Answered at https://gcc.gnu.org/ml/gcc/2017-10/msg00101.html where
it's even more off-topic than here.



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