🚀 go-pugleaf

In article <1992Oct28.184633.8363@netcom.com>, rfg@netcom.com (Ronald F. Guilmette) writes:
> I assume that this also implies that the following declarations are invalid
> (according to ANSI C):
> 
> 		typedef int two_d_type[][];
> 		extern int two_d_object[][];
> 
> Now the *real* question is "Are standard conforming implementations required
> to issue diagnostics for these declarations, and for the declaration of
> the type `table' in my original example?"

No.  Conforming implementation are only required to diagnose syntax
errors and constraint violations.  Declaring an array of incomplete
type is neither, so it produces undefined behavior.  An implementation
is free to accept it and do the right thing (like most do with the
previous typedef example), produce an error message and refuse to
generate code (like most do with the above example), or anything else
they like (such as turning into a butterfly and flying away, as one
well-known hypothetical implementation does).
----
Larry Jones, SDRC, 2000 Eastman Dr., Milford, OH  45150-2789  513-576-2070
larry.jones@sdrc.com  or  ...uunet!sdrc!larry.jones
Oh, now don't YOU start on me. -- Calvin