linux-kernel - Re: [PATCH 1/2] remove all uses of printf's %n

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Date:	Mon, 16 Sep 2013 12:25:50 -0700
From:	Joe Perches <joe@...ches.com>
To:	George Spelvin <linux@...izon.com>
Cc:	akpm@...ux-foundation.org, dan.carpenter@...cle.com,
	JBeulich@...e.com, keescook@...omium.org,
	kosaki.motohiro@...il.com, linux-kernel@...r.kernel.org,
	penguin-kernel@...ove.sakura.ne.jp, viro@...iv.linux.org.uk
Subject: Re: [PATCH 1/2] remove all uses of printf's %n

On Mon, 2013-09-16 at 15:15 -0400, George Spelvin wrote:
> > It'd be consistent with all the other %p<foo> types.
> >
> > vsnprintf is already weird enough with %p uses,
> > there's absolutely no reason to stretch it further
> > with yet another odd access/format style.
> 
> Well, all the other %p<foo> types actually *use* the void * argument.
> They print the thing pointed to, just in different ways.
> 
> What I'm proposing is fundamentally different, and much more
> "printf internals" specific.
> 
> I hate creating an interface that requires a dummy pointer argument.
[]
> Is "%0-127c" too ugly to live?

Yes.

I suppose you use "%[-]*pV" if you really want funky/fugly.


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