https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
--- Comment #7 from chris.ol...@iti-global.com ---
I'm not arguing that arrays declarations should be allowed to derive from
incomplete types, nor all pointers-to-array of incomplete type be allowed; I'm
specifically arguing that a struct should b
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
--- Comment #6 from joseph at codesourcery dot com ---
On Wed, 2 Aug 2017, chris.ol...@iti-global.com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
>
> --- Comment #4 from chris.ol...@iti-global.com ---
> (In reply to jos...@codes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
Andrew Pinski changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
--- Comment #4 from chris.ol...@iti-global.com ---
(In reply to jos...@codesourcery.com from comment #3)
> Because the type doesn't exist,
I don't know what you mean by a type that "doesn't exist". A declared but
undefined struct is incomplete bu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
--- Comment #3 from joseph at codesourcery dot com ---
There is no such thing as an array type whose element is incomplete - you
can't construct, or describe, such a type in C at all, and attempts to do
so have undefined behavior in C90, are co
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
--- Comment #2 from chris.ol...@iti-global.com ---
This isn't an array of incomplete type, but a pointer-to-array of incomplete
type; not just any incomplete type, but struct that is guaranteed to be
complete when the outermost } is encountered. A
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81677
--- Comment #1 from joseph at codesourcery dot com ---
In C90, arrays of incomplete types are forbidden because incomplete types
are not (before C11) object types. See footnote 17 in subclause 6.1.2.5.
In C99 this becomes a constraint in 6.7.
