How to turn off a warning in a file

How to turn off a warning in a file

[robbie.doggie]

Hi,

I'm compiling with compiler option -Wall, which is fine for all my files. But I'm also including third party headers which return billions of " `class xy' has virtual functions but non-virtual destructor" warnings.
Is it possible to turn off this warning for these files?

Kind regards,
Hans-Heiri


-- 


"Feel free" – 10 GB Mailbox, 100 FreeSMS/Monat ...
Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail

Re: How to turn off a warning in a file

[Gabriel Dos Reis]

robbie.doggie@gmx.net writes:

| Hi,
| 
| I'm compiling with compiler option -Wall, which is fine for all my
| files. But I'm also including third party headers which return
| billions of " `class xy' has virtual functions but non-virtual
| destructor" warnings. 

very annoying warning, isn't it?

| Is it possible to turn off this warning for these files?

Append -Wno-virtual-dtor.

-- Gaby

Re: How to turn off a warning in a file

[Paulo J. Matos]

On 13 Jun 2006 06:33:50 -0500, Gabriel Dos Reis <gdr@cs.tamu.edu> wrote:
> robbie.doggie@gmx.net writes:
>
> | Hi,
> |
> | I'm compiling with compiler option -Wall, which is fine for all my
> | files. But I'm also including third party headers which return
> | billions of " `class xy' has virtual functions but non-virtual
> | destructor" warnings.
>
> very annoying warning, isn't it?
>
> | Is it possible to turn off this warning for these files?
>
> Append -Wno-virtual-dtor.
>

Not available in g++ 4.1.1:
cc1plus: error: unrecognized command line option "-Wno-virtual-dtor"

> -- Gaby
>


-- 
Paulo Jorge Matos - pocm at sat inesc-id pt
Web: http://sat.inesc-id.pt/~pocm
Computer and Software Engineering
INESC-ID - SAT Group

Re: How to turn off a warning in a file

[Gabriel Dos Reis]

"Paulo J. Matos" <pocmatos@gmail.com> writes:

| On 13 Jun 2006 06:33:50 -0500, Gabriel Dos Reis <gdr@cs.tamu.edu> wrote:
| > robbie.doggie@gmx.net writes:
| >
| > | Hi,
| > |
| > | I'm compiling with compiler option -Wall, which is fine for all my
| > | files. But I'm also including third party headers which return
| > | billions of " `class xy' has virtual functions but non-virtual
| > | destructor" warnings.
| >
| > very annoying warning, isn't it?
| >
| > | Is it possible to turn off this warning for these files?
| >
| > Append -Wno-virtual-dtor.
| >
| 
| Not available

It is since ages.  There was a missing "-non" from my part.  Try

    -Wno-non-virtual-dtor

-- Gaby

Re: How to turn off a warning in a file

[Christoph Bartoschek]

Am Dienstag, 13. Juni 2006 13:23 schrieb robbie.doggie@gmx.net:
> Hi,
>
> I'm compiling with compiler option -Wall, which is fine for all my files.
> But I'm also including third party headers which return billions of "
> `class xy' has virtual functions but non-virtual destructor" warnings. Is
> it possible to turn off this warning for these files?

If your third party headers are in a separate directory you can use -isystem 
<dir> instead of -I<dir>. This disables most of the warnings for headers 
from <dir>.

Christoph

Fwd: Re: Re: How to turn off a warning in a file

[robbie.doggie]

> very annoying warning, isn't it?

Oh yes, it is...

> | Is it possible to turn off this warning for these files?
> 
> Append -Wno-virtual-dtor.

Ok, but actually I'd like to keep it turned on for other files. In other compilers there's a possibility with #pragma. But I haven't found out whether that's possible with gcc, too.

-- 


Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen!
Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

Re: How to turn off a warning in a file

[Perry Smith]

On Jun 13, 2006, at 8:01 AM, robbie.doggie@gmx.net wrote:
>>
>> Append -Wno-virtual-dtor.
>
> Ok, but actually I'd like to keep it turned on for other files. In  
> other compilers there's a possibility with #pragma. But I haven't  
> found out whether that's possible with gcc, too.

As an alternative, GNU make has target specific variables so you can  
have that flag set for particular object files and not for others.   
They are pretty easy to use.

HTH,
pedz