[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Iterating through a list
From: |
Doug Donalson |
Subject: |
Iterating through a list |
Date: |
Tue, 25 Jul 2000 14:33:00 -0700 |
Suppose I have a list, call it aList. aList can have members or be empty.
Suppose that aList is empty and I do the following:
index=[aList create: self];
while( (aListMember=[index next]) )
{
do some stuff
}
This should work for an empty list shouldn't it? (I am assuming it just
terminates the loop before "do some stuff" is attempted. The reason I ask
is that I am doing something like this and when I create the index it has an
id but when I do an "[index next]" it crashes. I just want to make sure of
this aspect before I go any farther with debugging.
Thx,
D4
*********************************************************************
* Dr. Doug Donalson Office: (805) 893-2962
* Ecology, Evolution, Home: (805) 961-4447
* and Marine Biology email address@hidden
* UC Santa Barbara
* Santa Barbara Ca. 93106
*********************************************************************
*
* The most exciting phrase to hear in science, the one that
* heralds new discoveries, is not "EUREKA" (I have found it) but
* "That's funny ...?"
*
* Isaac Asimov
*
*********************************************************************
==================================
Swarm-Support is for discussion of the technical details of the day
to day usage of Swarm. For list administration needs (esp.
[un]subscribing), please send a message to <address@hidden>
with "help" in the body of the message.