Re: [Bug-apl] indexing of the array

Sat, 05 Mar 2016 03:12:47 -0800

Hi Alexey,

the IBM APL2 binding rules say that [] binds stronger than vector notation (IBM APL2
language reference page 34). That is,

100 200[1]  is  100 (200[1])

IBM APL2 behaves in the same way as GNU APL.

/// Jürgen
On 03/04/2016 08:37 PM, Alexey Veretennikov wrote:
Hi,

When trying to get element by index from the array specified to the left
side, there is a difference in behavior:

100 200[1]
RANK ERROR
      100 200[1]
          ^  ^

However:
(100 200)[1]
┌───┐
│100│
└───┘


In Dyalog APL both _expression_ gives the same result.
Is it a bug or different understanding of the standard?

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