On 1/5/11 6:19 PM, Florian Pflug wrote:
Sorry, but It isn't too intuitive. Minimally for me. Why you don't
thinking about simple functions with only positive arguments. There
are only four combinations. I don't think we must have only one super
function.
we need functionality for:
a) get first n items
b) get items without last n items
c) get last n items
d) skip first n items
Now you've moved the goalpost - the OP wanted to access individual
elements, not slices! To support slices, a three-argument version
of array_relative() would be required, with the signature
array_relative(some_array anyarray, first int[], last int[])
Your requirements (a) to (d) are then easily satisfied
a) array_relative(ary, array[0], array[n-1])
b) array_relative(ary, array[0], array[-n-1])
c) array_relative(ary, array[-n], array[-1])
d) array_relative(ary, array[n], array[-1])
The individual function approach might be a tad more readable for
one-dimensional arrays, but they don't scale well to the general
case.
Maybe the OP could comment on whether any of these solutions
would fit his needs?
Hi,
(sorry for the late reply, got lost in my Inbox)
For my main use case I just needed the last element of the array, but I
could see myself needing a slice as well. (i.e. give me the last 5 items
in an array)
So in that sense yes, this would fit the bill.
Hannu Valtonen
Lead Software Architect
Technology Office
F-Secure Corporationhttp://www.F-Secure.com
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