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From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: [bug] Math evaluation done twice in subscript in specific conditions
Date: Wed, 24 Jul 2019 01:50:23 +0200	[thread overview]
Message-ID: <CAKc7PVBZa=G0D1v4u9=257O20N85r26HWmjtpxVrNvfoUp-PSQ@mail.gmail.com> (raw)

Hello
This is interesting:

idx=0
a=()
: ${a[++idx]::=$idx}
print -rl $a
-> 1
: ${a[++idx]::=$idx}
print -rl $a
-> 1
-> 3
idx=1
: ${a[++idx]::=$idx}
print -rl $a
-> 1
-> 2
-> 3

So apparently the assignment to idx does change something for the
following ::= "call" and makes it work correctly. The second and
following ::= calls cause $idx to increment twice.

-- 
Sebastian Gniazdowski
News: https://twitter.com/ZdharmaI
IRC: https://kiwiirc.com/client/chat.freenode.net:+6697/#zplugin
Blog: http://zdharma.org

             reply	other threads:[~2019-07-23 23:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-23 23:50 Sebastian Gniazdowski [this message]
2019-07-24  5:12 ` Stephane Chazelas
2019-07-24  5:33   ` Sebastian Gniazdowski

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