Selective Assignment - first each

[David Tran]

Hi,

Currently study APL2, and found an example that won't work on Gnu APL:

v ← 12(13(14 15))(16 17)

(↑¨v) ← 2 3 6

On the book, above statement will change v into 2 (3 (14 15)) (6 17);  however Gnu APL returns Syntax Error.

Is such "first each assignment" not APL2 standard specification, or it is just Gnu APL is not support yet?

Thanks,

Dave