That sentence never executed, because (problem) was executed dyadically and it has no dyadic definition.

Henry Rich

On 4/6/2022 7:41 PM, bill lam wrote:
I don't know. However why did the sentence
1 2+3 4 5
give domain error instead of length error?


On Thu, 7 Apr 2022 at 7:29 AM Henry Rich <henryhr...@gmail.com> wrote:

Raul provides this example:

https://github.com/jsoftware/jsource/issues/131

Run

example2 10

It fails (valence error in problem).  Suppose you want to look around in
the caller's frame.  You try 13!:19'', but it restarts immediately,
calls problem again, and fails.

What does it look like when it works for you?

Henry Rich

On 4/6/2022 7:25 PM, bill lam wrote:
It works for me therefore I'm not sure if I understood what you said. Can
you give a simple example?

On Thu, 7 Apr 2022 at 7:20 AM Henry Rich <henryhr...@gmail.com> wrote:

dbcut (13!:19) seems to go up one stack level and immediately reexecute
the line that failed.  Huh?

Unless you have a stop on that line, you will rerun it and it will fail
again.  If you do have a stop on the line, the reexecution is nugatory.

Can anyone suggest a reason why 'cut back' should not just cut the stack
back and remain in suspension?

[It is possible that I have read the code wrong.]

Henry Rich




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