Re: [Valgrind-users] Using valgrind from a test suite

[Olly B. <ol...@su...>]

On Mon, Mar 31, 2003 at 08:49:56AM +0100, Nicholas Nethercote wrote:
> On Mon, 31 Mar 2003, Olly Betts wrote:
> 
> > A third possibility I've just thought of is to use:
> >
> > valgrind --logfile-fd=-1 /dev/null [program and args]
> >
> > (Or redirect to a particular fd and direct that to /dev/null but then
> > that fd might be used by something - -1 is nice as it always works...)
> 
> That seems a good way to do it, since it doesn't require any changes.
> 
> Is -1 the file descriptor for /dev/null, or is it just an invalid file
> descriptor and thus the output goes nowhere?

It's invalid.

> I just tried it, you don't need to write /dev/null in the command line as
> you have above.

Sorry yes.  I originally had "--logfile-fd=3 3> /dev/null" and
apparently failed to edit out the "/dev/null" as well as the "3>"
when I realised -1 would be a better option.  To be clear:

valgrind --logfile-fd=-1 [program and args]

Cheers,
    Olly