Re: exists $foo[7] and delete $foo[7]

[Ted Ashton <ashted@southern.edu>]

Thus it was written in the epistle of Tom Christiansen,
> >>Could you please distinguish
> >>this from "undefined"?
> 
> >You can assign an undefined _value_ to something.  But there's no concept
> >of assigning an uninitialized _value_, because it is an attribute (or
> >state of being).
> 
> >IOW, "uninitialized" is a stronger particular condition than "undefined".
> 
> >>Can only the scalar elements in an array
> >>be uninitialized?
> 
> This is disconcerting.  In Perl lingo, we have always used the terms
> "undefined" and "uninitialized" interchangeably when it came to
> scalar values.

I'd like to second that.  Furthermore, this definition of delete violates 
least surprise (or is that of import any more?).  I would expect 

  delete($array[2]) 

to be equivalent to 

  splice(@array,2,1)

(and, frankly, more natural to read).

Ted
-- 
Ted Ashton (ashted@southern.edu), Info Serv, Southern Adventist University
          ==========================================================           
The mathematician who pursues his studies without clear views of this
matter, must often have the uncomfortable feeling that his paper and pencil
surpass him in intelligence.
                        -- Mach, Ernst (1838 - 19166)

---

References to:

Tom Christiansen <tchrist@chthon.perl.com>

---

[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index][Thread Index][Top&Search][Original]

---