c++/9367: [3.3/3.4 regression] error: nonnull argument with extern "C" snprintf prototype

[Joseph S. Myers]

On Mon, 24 Feb 2003, Janis Johnson wrote:

> The regression showed up with this patch:
> 
> 2002-05-23  Jason Thorpe  <thorpej@wasabisystems.com>
> 
>       * builtin-attrs.def: Update copyright years.
>       (ATTR_NONNULL): New attribute identifier.
>       (ATTR_NONNULL_1, ATTR_NONNULL_2, ATTR_NONNULL_3): New
>       attribute tree lists.
>       (DEF_FORMAT_ATTRIBUTE): Chain a nonnull attribute for the
>       format operand.
>       (ATTR_FORMAT_ARG_1, ATTR_FORMAT_ARG_2): Use...
>       (DEF_FORMAT_ARG_ATTRIBUTE): ...this to generate format_arg
>       attribute lists.  Chain the appropriate nonnull attribute.
>       * c-format.c (check_format_arg): Remove null format string
>       warning.

And note my comment when this problem was mentioned on the gcc list about 
where to look for a fix.

http://gcc.gnu.org/ml/gcc/2003-01/msg00882.html

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