Why creating StaticArray with size from a variable throws an error?

Question

error when creating StaticArray with size from variable

I get this error (see image) but I don't know how to resolve this ?

code :

t = 3
seps = StaticArray(Int32, t).new{
      2
}
seps.each{|i| p i}

error :

Syntax error in eval:2: expecting token ')', not 't'

It works when I initialize the StaticArray like this :

seps = StaticArray(Int32, 3).new{
      2
}
seps.each{|i| p i}

But I need to init the array like the first sample of code !

Put your code here and not in an image. – Roeland Van Heddegem Jan 22 '18 at 12:59 — Roeland Van Heddegem, Jan 22 '18 at 12:59

score 4 · Accepted Answer · answered Jan 23 '18 at 00:21

4

A StaticArray has a fixed size that can't be modified at runtime. The syntax doesn't even allow to use a variable as a generic argument because it wouldn't make sense.

If you need variable size at runtime, you should use Array instead.

answered Jan 23 '18 at 00:21

Johannes Müller

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Why creating StaticArray with size from a variable throws an error?

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