Re: [Ctool-develop] testing the gcc test suite

[Shaun F. <fli...@so...>]

If this is legal C99 we should just support it directly.  Please remove 
the warning.

Thanks,
Shaun

On Wednesday, September 3, 2003, at 04:26  PM, Stefan Seefeld wrote:

> Shaun Flisakowski wrote:
>
>> Empty arrays are not allowed in Ansi C in general, it does seem like 
>> that should probably be a warning rather than an error though, since 
>> K&R C was lax about that.
>
> I found this in <cdefs.h> on my machine:
>
> /* Support for flexible arrays.  */
> #if __GNUC_PREREQ (2,97)
> /* GCC 2.97 supports C99 flexible array members.  */
> # define __flexarr	[]
> #else
> # ifdef __GNUC__
> #  define __flexarr	[0]
> # else
> #  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
> #   define __flexarr	[]
> #  else
> /* Some other non-C99 compiler.  Approximate with [1].  */
> #   define __flexarr	[1]
> #  endif
> # endif
> #endif
>
> and the line the ctdemo is stumbling over is:
>
> __extension__ struct __gconv_step_data __data __flexarr;
>
> I think the 'right thing to do' would be to provide some
> form of a config file that sets individual parser behaviors
> such as whether or not to accept 'flexible arrays'.
>
> A quick fix would be to just take the error condition
> out of gram.y. This flexible array thing seems to occure
> in almost every file I parse as it's part of some very
> fundamental system headers on my machine.
>
> Regards,
> 		Stefan
>
>
>
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