On 10/12/2017 05:52 AM, Pedro Alves wrote:
On 10/11/2017 03:57 AM, Martin Sebor wrote:
[X] This can be function that takes an argument of an incomplete
type, such as:
struct Incomplete;
typedef void Uncallable (struct Incomplete);
Any function can safely be converted to Uncallable* without
the risk of being called with the wrong arguments. The only
way to use an Uncallable* is to explicitly convert it to
a pointer to a function that can be called.
OOC, did you consider trying to get something like that added
to C proper, to some standard header? I don't imagine that it'd
be much objectionable, and having a standard type may help
tooling give better diagnostics and suggestions.
Yes. In light of this discussion I am thinking it might be
worthwhile to bring up the issue of generic function pointers
with WG14 for C2X.
Martin
