[Bioperl-l] How to get rid of warnings
cjfields at uiuc.edu
Sun Aug 20 09:26:42 EDT 2006
On Aug 20, 2006, at 2:10 AM, Sendu Bala wrote:
> Hilmar Lapp wrote:
>> On Aug 19, 2006, at 2:07 PM, Sendu Bala wrote:
>>> Like I say, you have to have a default of undef and set the value to
>>> undef to turn the feature off, which doesn't seem very nice to me.
>> Why? Typically a value of undef for a property (class or instance-
>> means it hasn't been set.
>> This is used all over the place, and I'm sure not just in bioperl.
> Yes, but very very rarely are you ever required to deliberately pass
> 'undef' as a value to a method in order to do something. Because
> quite a horrible thing to do.
Why is that? What dictum of developer ethics dictates that we should
never pass undef? I believe this is a perfectly valid (and widely
used) way to unset a get/set.
This is your opinion, Sendu. It is not a fact. Please remember that.
Lab of Dr. Robert Switzer
Dept of Biochemistry
University of Illinois Urbana-Champaign
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