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From: Kamil Dudka <kdudka@redhat.com>
To: Peter Stephenson <p.stephenson@samsung.com>
Cc: zsh-workers@zsh.org
Subject: Re: [PATCH] enable number argument for transpose-words
Date: Fri, 12 Aug 2016 15:10:02 +0200	[thread overview]
Message-ID: <1731715.OYnJ1QsI4R@kdudka-nb> (raw)
In-Reply-To: <20160812114142.79587341@pwslap01u.europe.root.pri>

On Friday, August 12, 2016 11:41:42 Peter Stephenson wrote:
> On Fri, 12 Aug 2016 12:25:55 +0200
> 
> Kamil Dudka <kdudka@redhat.com> wrote:
> > Is the body of 'while (n--)' loop guaranteed to be executed at least once?
> > 
> > Otherwise p1 and p2 may be used uninitialized by code following after the
> > loop.
> 
> It's probably reasonable to do the following...
> 
> pws
> 
> diff --git a/Src/Zle/zle_word.c b/Src/Zle/zle_word.c
> index 2a15171..e4a878e 100644
> --- a/Src/Zle/zle_word.c
> +++ b/Src/Zle/zle_word.c
> @@ -722,7 +722,7 @@ transposewords(UNUSED(char **args))
>      if (!p3)
>  	return 1;
> 
> -    pt = p3;
> +    p1 = p2 = pt = p3;
> 
>      while (n--) {
>  	for (p2 = pt; p2; ) {

Appears fixed.  Thanks!

Kamil


  reply	other threads:[~2016-08-12 13:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-01 10:32 Han Pingtian
2016-08-12  2:54 ` Han Pingtian
2016-08-12  9:29   ` Peter Stephenson
2016-08-12 10:25     ` Kamil Dudka
2016-08-12 10:41       ` Peter Stephenson
2016-08-12 13:10         ` Kamil Dudka [this message]
2016-08-15  2:22     ` Han Pingtian
2016-08-15  8:39       ` Peter Stephenson
2016-08-15  9:01         ` Peter Stephenson

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