Hi, thanks, hopefully fixed in SVN 268. Also the debug printouts.
/// Jürgen On 05/14/2014 07:01 PM, David B. Lamkins wrote:
I think Elias is correct. >From the IBM manual, pg. 110 (check the source; I think I've transcribed accurately, but make no guarantee): -- begin Empty Argument: If R is empty, the function LO is not applied. Instead, a related function called the fill function of LO is applied with argument ↑R (the prototype of R). This result is used as a prototype of the empty array of ρR . The identity is: LO¨ ̈R ←→ (ρR)ρ⊂fill fn ↑R where: LO Is any function for which a fill function is defined fill fn Is its related fill function -- end That'd mean: +¨⍬ ←→ ⍬ ,¨'' ←→ '' Also, in the case where a function is a defined function, its fill function is the identity function. Therefore {⍵}¨'' and {⍵}¨⍬ should behave according to these identities: (⍴'')⍴⊂{⍵}↑'' ┌⊖┐ │ │ └─┘ (⍴⍬)⍴⊂{⍵}↑⍬ ┌⊖┐ │0│ └─┘ On Thu, 2014-05-15 at 00:14 +0800, Elias Mårtenson wrote:I tested this, and I'm wondering if the return value should really be 0? Wouldn't it make more sense to return ⍬? Regards, Elias
