Jupiterhost.Net wrote:
>
>
> david wrote:
>
>> Jupiterhost.Net wrote:
>>
>>
>>>Hello list,
>>>
>>>I was looking into the best way (and for what reasons) you'd create an
>>>"alais" function.
>>>
>>>For example:
>>>
>>>If you want foo() and bar() to be able to be used interchangeably would
>>> it be best to do:
>>>
>>> sub foo { return "Howdy $_[0]"; }
>>> sub bar { return foo(@_); }
>>>
>>>or do a typeglob:
>>>
>>> sub foo { return "Howdy $_[0]"; }
>>> *bar = \&foo;
>>>
>>
>>
>> for these simple examples, it doesn't matter much and i would go with the
>> first method. functionality wise, they are pretty much the same but there
>> are differences that you might want to observe when your foo function
>> gets more complicated. for example, the first method has an extra
>> function call which means it's a tiny bit slower and more importantly,
>> the stock frame will be different and caller return different trace for
>> this purpose so you might want to consider 'goto &foo' instead. if none
>> of those matters to
>
> So that woudl be:
> sub foo { return "Howdy $_[0]"; }
> sub bar { goto &foo; }
> ??
>
yes
>
> goto() just kind of uses the current @_ if I remeber right, correct?
>
that's one feature of goto &foo and another has to do with transfering the
current call to another so caller is fooled to believe the function is
actually called directly
>
> I'll have to perldoc -f goto since
> I'm not realy familiar with it and its own issues :)
>
always a good idea
david
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