Re: [PATCH] procfs: another fix for the process file name in stat/status

[Samuel Thibault]

Pino Toscano, le Mon 10 Sep 2012 18:16:44 +0200, a écrit :
> Alle lunedì 10 settembre 2012, Samuel Thibault ha scritto:
> > Pino Toscano, le Mon 10 Sep 2012 17:31:32 +0200, a écrit :
> > > Alle domenica 9 settembre 2012, Samuel Thibault ha scritto:
> > > > Pino Toscano, le Fri 07 Sep 2012 20:02:56 +0200, a écrit :
> > > > > +static int args_filename_length (const char *name)
> > > > > +{
> > > > > +  const char *p = name;
> > > > > +  while (*p != '\0' && *p != ' ')
> > > > > +    ++p;
> > > > 
> > > > Why not using index(name, ' ') here?
> > > 
> > > If I would use strchr, the code would be something like:
> > >   const char *p = strchr (name, ' ');
> > >   return p != NULL ? p - name : strlen (name);
> > > 
> > > which, for the common case, would mean scanning the string twice.
> > 
> > Ah, right. You can use strchrnul instead.
> 
> Indeed -- I didn't know it, thanks for the hint.

Rather thank Guillem, I didn't know it either before he mentioned in
this thread :)

Samuel