On 19 June 2017 at 09:48, Dr. David Alan Gilbert <dgilb...@redhat.com> wrote: > * Eduardo Habkost (ehabk...@redhat.com) wrote: >> On Thu, Jun 15, 2017 at 01:14:15PM +0100, Dr. David Alan Gilbert wrote: >> > * Eduardo Habkost (ehabk...@redhat.com) wrote: >> > > void visit_start_struct(Visitor *v, const char *name, void **obj, >> > > - size_t size, Error **errp); >> > > + size_t size, Error *errp[static 1]); >> > > >> > >> > Is it possible to typedef that to something that hides the magic syntax? >> > Then we could get that down to QError errp or something like that? >> >> Unfortunately it is not possible to hide it in a typedef: the >> "static" keyword inside the square brackets is a feature of >> function parameter declarations only. Using it on a typedef >> results in: >> >> a.c:3:16: error: static or type qualifiers in non-parameter array declarator >> typedef Error *ErrorPtr[static 1]; > > That's a shame; it's rather odd looking; still I think it's > worth it if it simplifies the error code.
Is gcc's __attribute__((nonnull)) any better? It seems to apply to the whole function prototype rather than an individual argument though so probably not :-( thanks -- PMM
