ASCAN seems to only work with one-dimensional array. However, this is not noted in the documentation. Additionally, ASCAN does not produce an error if fed a multi-dimensional array and returns an incorrect '-1' as result.
Proof:
code:
$b[0,0]=1
$b[0,1]=2
$b[1,0]=3
$b[1,1]=4
? $b[1,1]
? ascan($b,1)
If ASCAN does indeed not support n-D arrays, then it should create an error message.
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