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Date: Wed, 8 Aug 2018 16:37:06 +0100
From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: negative bases in arithmetic expressions
Message-ID: <20180808153706.GB16265@chaz.gmail.com>
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$ zsh -c 'echo $((-8#10))'
zsh:1: invalid base (must be 2 to 36 inclusive): -8
$ zsh -c 'echo $((- 8#10))'
-8

I'd rather zsh interpreted $((-8#10)) the same as $((- 8#10))
like other shells do as it's a bit pointless to consider the
sign as being part of the base and then reject anything negative
afterwise.

-- 
Stephane