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Re: Bug in zsh 4.0.7

X-seq: zsh-workers 18905
From: Zefram <zefram@xxxxxxxx>
To: Chris Spiegel <matrix@xxxxxxxxxx>
Subject: Re: Bug in zsh 4.0.7
Date: Fri, 25 Jul 2003 11:00:22 +0100
Cc: zsh-workers@xxxxxxxxxx
In-reply-to: <20030725094831.GA19360@xxxxxxxxxxxxxxxx>
Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm
References: <20030725094831.GA19360@xxxxxxxxxxxxxxxx>

Chris Spiegel wrote:
>yyval.u.l = zstrtol(++ptr, &ptr, lastbase = 16);
>
>The issue is that it's unspecified whether ++ptr or &ptr happens first.

The expression &ptr doesn't use the value of ptr (which ++ptr modifies).
The value of &ptr is unaffected by the increment.  The behaviour is
perfectly well-defined.

-zefram

References:
- Bug in zsh 4.0.7
  - From: Chris Spiegel

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