Suppressing specific compiler warnings

[Banibrata Dutta]

Hi Ranjit:

Thanks for pointing it out. I'd seen the -Wno-xxx so many times,
but never thought about the reason for using it. 

BTW, wouldn't it be a good feature if all warnings (and errors)
were numbered, s.t. final warning (or error) displayed is something
like a --
<number>: <warning/error message>

And then have option like -Wno-<number>... Something quite similar 
to the HP compilers!
Also, this would make the process of internationalization of gcc/g++
easy.

Thanks & regards,
Banibrata Dutta

> -----Original Message-----
> From: Ranjit Mathew [ mailto:rmathew@gmail.com ] 
> Sent: Wednesday, May 26, 2004 1:55 PM
> To: Banibrata Dutta
> Cc: gcc@gcc.gnu.org
> Subject: Re: Suppressing specific compiler warnings
> 
> 
> Banibrata Dutta wrote:
> > Hi,
> >  
> > I've wondered for a long time as to why the ability to suppress 
> > specific compiler warnings is missing in GCC. Has this ever been 
> > discussed ? Having this would be very useful in cases where 
> we treat 
> > warnings and errors and cause build to break. At times there are 
> > warnings which we decide to live with, because they reflect a 
> > deliberate decision.
> 
> See:
> 
  http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html

Useful snippet:

  "You can request many specific warnings with options
  beginning -W, for example -Wimplicit to request warnings
  on implicit declarations. Each of these specific warning
  options also has a negative form beginning -Wno- to turn
  off warnings; for example, -Wno-implicit. This manual
  lists only one of the two forms, whichever is not the
  default."

Ranjit.

-- 
Ranjit Mathew          Email: rmathew AT gmail DOT com

Bangalore, INDIA.      Web: http://ranjitmathew.tripod.com/