Thread: hstore compiler warnings

hstore compiler warnings

From
Kevin Grittner
Date:
Is anyone looking at these?:

hstore_io.c: In function ‘hstore_to_json_loose’:
hstore_io.c:1312:5: warning: ignoring return value of ‘strtol’, declared with attribute warn_unused_result
[-Wunused-result]
hstore_io.c:1324:6: warning: ignoring return value of ‘strtod’, declared with attribute warn_unused_result
[-Wunused-result]

gcc (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2

These warnings seem to have started with:

http://git.postgresql.org/gitweb/?p=postgresql.git;h=38fb4d978c5bfc377ef979e2595e3472744a3b05


--
Kevin Grittner
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company




Re: hstore compiler warnings

From
Andrew Dunstan
Date:
On 03/21/2013 10:46 AM, Kevin Grittner wrote:
> Is anyone looking at these?:
>
> hstore_io.c: In function ‘hstore_to_json_loose’:
> hstore_io.c:1312:5: warning: ignoring return value of ‘strtol’, declared with attribute warn_unused_result
[-Wunused-result]
> hstore_io.c:1324:6: warning: ignoring return value of ‘strtod’, declared with attribute warn_unused_result
[-Wunused-result]
>
> gcc (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2
>
> These warnings seem to have started with:
>
> http://git.postgresql.org/gitweb/?p=postgresql.git;h=38fb4d978c5bfc377ef979e2595e3472744a3b05


I thought we'd got rid of those. And they don't pop up on my F16 dev box
(gcc 4.6.2)

I'll check it out.

cheers

andrew



Re: hstore compiler warnings

From
Andrew Dunstan
Date:
On 03/21/2013 11:18 AM, Andrew Dunstan wrote:
>
> On 03/21/2013 10:46 AM, Kevin Grittner wrote:
>> Is anyone looking at these?:
>>
>> hstore_io.c: In function ‘hstore_to_json_loose’:
>> hstore_io.c:1312:5: warning: ignoring return value of ‘strtol’,
>> declared with attribute warn_unused_result [-Wunused-result]
>> hstore_io.c:1324:6: warning: ignoring return value of ‘strtod’,
>> declared with attribute warn_unused_result [-Wunused-result]
>>
>> gcc (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2
>>
>> These warnings seem to have started with:
>>
>> http://git.postgresql.org/gitweb/?p=postgresql.git;h=38fb4d978c5bfc377ef979e2595e3472744a3b05
>>
>
>
> I thought we'd got rid of those. And they don't pop up on my F16 dev
> box (gcc 4.6.2)
>
> I'll check it out.


This is the only thing that I have found to work with very recent gcc.
Seems ugly. Anyone got a better idea?

cheers

andrew


Attachment

Re: hstore compiler warnings

From
Kevin Grittner
Date:
Andrew Dunstan <andrew@dunslane.net> wrote:

> [assign to local variable and then `(void) varname;` to avoid "unused" warning]

> This is the only thing that I have found to work with very recent gcc. Seems 

> ugly. Anyone got a better idea?

That seems to be what we've used elsewhere.


http://www.postgresql.org/message-id/24446.1318973105@sss.pgh.pa.us


-- 
Kevin Grittner
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company