------- Comment #1 from joseph at codesourcery dot com 2009-07-26 21:43 -------
Subject: Re: New: Designated initializers for multi-dimensional
arrays fail in Objective-C
On Sun, 26 Jul 2009, sergei dot yakovlev at gmail dot com wrote:
> Designated initializers for multi-dimensional arrays work great in C (C99),
> but
> fail in Objective-C (see example below). Given that Objective-C is proclaimed
> a
> strict superset of C, I consider this a bug.
This was a property of the old C parser I carefully replicated when
writing the new one. I do not know if there exists a C99-based
specification of ObjC that clarifies what is intended (and note that this
interacts with the old GNU form of designated initializers as well); I
took it as given by the implementation at that time.
/* ??? Following the old parser, [ objc-receiver
objc-message-args ] is accepted as an initializer,
being distinguished from a designator by what follows
the first assignment expression inside the square
brackets, but after a first array designator a
subsequent square bracket is for Objective-C taken to
start an expression, using the obsolete form of
designated initializer without '=', rather than
possibly being a second level of designation: in LALR
terms, the '[' is shifted rather than reducing
designator to designator-list. */
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40864
