c/5106: Internal compiler error when passing structure

[Joseph S. Myers]

On Sat, 15 Dec 2001, Martin v. Loewis wrote:

> > > I don't think this is a GCC extension. Variable Length Arrays are not
> > > allowed as struct members.
> > 
> > As a GNU extension beyond C99, they are.
> 
> Where is that documented? Are there any restrictions, like "only

In http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00169.html noting that it 
isn't documented.

> available in C", "if used in C++, only allowed in POD structs"?
> 
> What is the rationale for having that extension?

That it has already existed.  Do people want it to die when implementing 
C99 semantics for VLAs?

-- 
Joseph S. Myers
jsm28@cam.ac.uk