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* [bug] Math evaluation done twice in subscript in specific conditions
@ 2019-07-23 23:50 Sebastian Gniazdowski
  2019-07-24  5:12 ` Stephane Chazelas
  0 siblings, 1 reply; 3+ messages in thread
From: Sebastian Gniazdowski @ 2019-07-23 23:50 UTC (permalink / raw)
  To: Zsh hackers list

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

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-07-24  5:34 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-23 23:50 [bug] Math evaluation done twice in subscript in specific conditions Sebastian Gniazdowski
2019-07-24  5:12 ` Stephane Chazelas
2019-07-24  5:33   ` Sebastian Gniazdowski

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