Re: [Bug-apl] Lambda valence error

[Juergen Sauermann]

Hi, it kind of worked earlier, but not really. I changed the behavior in SVN 622 in order to fix a bug reported earlier. If I remember correctly then: - )LOAD of a workspace with a monadic function called dyadically on the )SI stack  would crash due to a null pointer in a value token, and - IBM APL2 would also raise a valence error when a monadic function is called dyadically /// Jürgen On 06/04/2016 08:58 AM, Daniel H. Leidisch wrote: Hello! On r734: 1 {⍵} 2 VALENCE ERROR 1 λ1 2 ^ ^ Unless I'm mistaken, this used to work. I assumed it to be a regression, but reading the info section about lambdas, it actually seems to be intended behavior. ("If only ⍵ is present then it is monadic, and if neither ⍺ nor ⍵ is present then the lambda is niladic.") I can get around it using something like {⍺ ⊢ ⍵}, but it feels clumsy and isn't needed in Dyalog and NGN. Is it intended behavior, and if yes, what was the rationale behind it? Regards, Daniel