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Postings from September 2000
>>>>> "DC" == Damian Conway <damian@cs.monash.edu.au> writes:
>> Let me ask you:
>>
>> foo('a','b', 'c')
>>
>> Is 'b' the 1st parameter or the 2nd?
DC> This is the classical mistake of confusing indices and ordinals.
DC> The 1st argument is bound to the parameter whose index is [0],
DC> The 2nd argument is bound to the parameter whose index is [1], etc.
But why make it an index? It just reads better as an ordinal.
DC> Assuming they've read L<perlcurry>, they'll know that ^1 is $_[1] is
DC> parameter [1] is the 2nd parameter. They'll know because at the very start
DC> of L<perlcurry> I will write:
DC> ^1 means $_[1], NOT $_[0]
[snip. Last message repeated too many times.]
If you have to do that, that is a good argument to follow the 'natural'
inclination.
Again, why insist on an index when it really is closer to an ordinal when
reading the actual code.
<chaim>
--
Chaim Frenkel Nonlinear Knowledge, Inc.
chaimf@pobox.com +1-718-236-0183
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