c++/7585: Attributes for nested typedef-name ignored

Joseph S. Myers jsm28@cam.ac.uk
Thu Oct 31 11:18:00 GMT 2002


On Thu, 31 Oct 2002, Wolfgang Bangerth wrote:

> > Said differently, what do you envision for the "right" syntax for
> > 
> >    typedef unsigned char type[sizeof(int)] 
> >              __attribute__((__aligned__(__alignof__(int))));

typedef unsigned char
    (__attribute__((__aligned__(__alignof__(int)))) type)[sizeof(int)]

(supposing that the attribute is to be applied to the array type).

> I think it would help to have a formal specification of attribute 
> placement somewhere. Although it would probably be so complicated that 
> nobody would want to read it...

"Attribute Syntax" in the manual.  It does presume you fully understand
the formal definition in the C standard of declarator syntax, before you
can understand how it is extended with attributes.

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



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