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Subroutine with arbitrary number of parameters

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That would be the time to show how to define a subroutine that can get arbitrary number of values, but that requires introducing two concepts at a time. So I'll have to find a better set of examples.

Anyway, if we would like to implement a sum() subroutine that can get any number of values we need to define it like this:

That is, we have to say that the expected parameter is a slurpy array. The * means it is slurpy, the @ still means it is an array. It will then accept any value as parameter and put them in the @values array.

So I can call it either with literal scalars or even with a list of arrays and scalars mixed

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Gabor Szabo
Written by Gabor Szabo

Published on 2012-01-01

Prev: Simple definition with required parameters


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