Re: add __attribute__((noreturn)) to suppress a waring - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: add __attribute__((noreturn)) to suppress a waring
Date
Msg-id 4D3D1D13.3040509@enterprisedb.com
Whole thread Raw
In response to add __attribute__((noreturn)) to suppress a waring  (Itagaki Takahiro <itagaki.takahiro@gmail.com>)
Responses Re: add __attribute__((noreturn)) to suppress a waring  (Tom Lane <tgl@sss.pgh.pa.us>)
List 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


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