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Re: Function/alias recursion
From: |
Eric Blake |
Subject: |
Re: Function/alias recursion |
Date: |
Tue, 16 Jan 2007 06:34:08 -0700 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.9) Gecko/20061207 Thunderbird/1.5.0.9 Mnenhy/0.7.4.666 |
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According to Tim Waugh on 1/16/2007 5:45 AM:
> What is the intended behaviour for this sort of thing?:
Infinite recursion, within the limits of your stack.
>
> $ cat <<"EOF" >trouble
> hello ()
> {
> pwd
> }
> alias pwd="hello"
> EOF
> The behaviour I've observed with bash-3.2 and several earlier releases
> is that bash consumes all available memory and then crashes.
And why not? It's the same as doing this in C:
int foo()
{
return foo();
}
Bash can't protect you from yourself (or put differently, the halting
problem is undecidable).
- --
Don't work too hard, make some time for fun as well!
Eric Blake ebb9@byu.net
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