Re: add __attribute__((noreturn)) to suppress a waring

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Itagaki Takahiro <itagaki.takahiro@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2011-01-24T06:32:51Z
Lists: pgsql-hackers
On 24.01.2011 03:42, Itagaki Takahiro wrote:
> I found the following warning with Fedora 14 / gcc 4.5.1.
> ----
> pg_backup_archiver.c: In function ‘_discoverArchiveFormat’:
> pg_backup_archiver.c:1736:11: warning: ‘fh’ may be used uninitialized
> in this function
> ----
> To suppress it, I'm thinking to add noreturn to die_horribly().
> Any objections?  Another solution might be adding a dummy assignment
> after calls of die_horribly().

I added a dummy assignment, that's how we've handled this before in 
pg_dump. I guess we could use noreturn, we already use it in pg_re_throw 
function. But we also have a dummy exit(1) call in the PG_RE_THROW macro 
for non-gcc compilers, so we might need to do that here too.

Thanks!

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com