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local variable setting problem/bug
- X-seq: zsh-workers 2433
- From: Robert F Tobler <rft@xxxxxxxxxxxxxxxxxxxxx>
- To: Zsh Workers <zsh-workers@xxxxxxxxxxxxxxx>
- Subject: local variable setting problem/bug
- Date: Tue, 19 Nov 96 22:31:39 +0100
- Original-received: by NeXT.Mailer (1.118.2)
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- Reply-to: rft@xxxxxxxxxxxxxxx
I encountered the following problem when writing a function (this is in zsh
3.00 on Nextstep, confirmed in zsh 3.01 on Nextstep, zsh 3.00 on Irix and zsh
2.6-beta13 on linux:
I wanted to create local variables and set them to empty lists (could
probably done more elegantly, or is maybe unnecessary, but I did it this way):
myfun ()
{
local aopt=() eopt=() dopt=()
...
Since the 'locality' did not work I found out that introducing the empty
lists produced the following effect (using 'functions' to print out what zsh
thinks about 'myfun'):
myfun () {
local aopt= () {
eopt=() dopt=()
}
...
This in itself is highly nonintuitive: I guess the first =() is interpreted
as a start of a new function definition, as opposed to a variable
initialization the way I think it should be (or am I mistaken? - I haven't
programmed zsh all that long).
But even worse than that, try the following function:
bug()
{
local a=()
local b
local c
}
On Nextstep 3.3 running zsh 3.00 or zsh 3.01 (with -f option) I get:
zsh: 24224 segmentation fault zsh -f
On Linux 1.3.52 running zsh 2.6-beta13 I get (after a while):
zsh: fatal error: out of memory
And on Irix 5.2 running zsh 3.00 it also consumes memory and
won't terminate normally.
Nevertheless I am very fond of zsh, and therefore I hope you can fix this problem!
------------------------------------------------------------------------
Robert F. Tobler - tel:+43(1)58801-4585,fax:5874932
Institute of Computer Graphics - mailto:rft@xxxxxxxxxxxxxxx
Vienna University of Technology - http://www.cg.tuwien.ac.at/~rft/
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