try
(,a) -: d=:dec e=:enc a=: ": 44{a.
I guess d will be a list while a is a single atom
(compare $a with $d for verification)
Am 13.12.20 um 17:27 schrieb Richard Donovan:
> Hi
>
> I have written a text encryption / decryption system in J.
>
> The input has to be a literal.
>
> I test it using the following system:-
>
>
> NB. Encrypt, Decrypt, Compare identical
> a -: d=: dec e=:enc a=:1000000#'abcdefghij'
> 1
> a -: d=: dec e=:enc a=: ": 1000000?@$?256
> 1
>
> NB. BUT
> a -: d=:dec e=:enc a=: ": 44{a.
> 0
> $d
> 1
> $a
>
> Could someone tell me WHY and how to overcome this?
>
> Thanks
>
>
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>
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