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Re: [doc] $ERRNO broken

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From: Peter Stephenson <p.stephenson@xxxxxxxxxxx>
To: Zsh hackers list <zsh-workers@xxxxxxx>
Subject: Re: [doc] $ERRNO broken
Date: Fri, 14 Oct 2016 18:00:24 +0100
Cms-type: 201P
In-reply-to: <20161014160459.GA17477@chaz.gmail.com>
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References: <20161014155603.GA17198@chaz.gmail.com> <CGME20161014161127eucas1p2d6469defd27f08a8431eb07bceb1be19@eucas1p2.samsung.com> <20161014160459.GA17477@chaz.gmail.com>

On Fri, 14 Oct 2016 17:04:59 +0100
Stephane Chazelas <stephane.chazelas@xxxxxxxxx> wrote:
> Actually, it's fine when you *set* it beforehand, and you would
> generally want to set it beforehand as in:
> 
> zsh -c 'ERRNO=0; /; echo $ERRNO'
> 
> or otherwise you wouldn't know what system call the $ERRNO you'd
> get is from.
> 
> So it's just a documentation issue: the doc should say that
> ERRNO should be set (declaring it is not enough) before use.

This is 32377 / f3e7cfe4, which described itself as a "first go", so
there may be more to come.  It touched various variables.

pws

References:
- $ERRNO broken
  - From: Stephane Chazelas
- Re: [doc] $ERRNO broken
  - From: Stephane Chazelas

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