Talk:Anonymous recursion: Difference between revisions

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* Ruby is different from PicoLisp here: the first pass through the 'recur' block really is a function call! For example, <tt>recur { recurse }</tt> would be an infinite loop (until I run out of memory, with a very long stack trace), but <tt>recur { next 5; recurse }</tt> would return 5, because 'next' is the Ruby keyword to return from a block.

* I cannot find the difference between an ''invisible function'' and a ''function-that-is-not-considered-a-function''. If the wrong solutions use the invisible functions, and the correct solutions use the functions that are not considered functions, then I cannot know whether each solution is correct or wrong! --[[User:Kernigh|Kernigh]] 04:04, 11 February 2011 (UTC)

=== completion of the task ===

I am the author of the REXX solution.

There is a note which says in part: " .. The task was not to check for a negative argument..."

The task as stated:

"If possible, ..... which checks for a negative argument before doing the autual recursion."

I did the neg arg check before the actual recursion.

In the anonymous call ranch example for REXX, "doThat" was a recursive call for the solution,

as well as "doMore", which did likewise.

<br>I can break the REXX code to NOT invoke a recursive call for the solution, but merely delay it, which

would seem to defeat the purpose of the example (by adding more unecessary code).

Was it against the rules to have a different version of the recursive call as part of "doThat"?

[[User:Gerard Schildberger|Gerard Schildberger]] 20:39, 18 January 2011 (UTC)

: Surely my REXX skills are near to zero, I just see that the function 'fib' calls the function 'fib' again, which is not "anonymous" (but calls the named function). The task talks about "in-place" recursion, without calling a name. The fibonacci is just thought as a simple example. Anonymous recursion should work stand-alone, completely without the presence of a function. There might in fact be 1000 lines before and 1000 lines after the recursive part. --[[User:Abu|Abu]] 06:52, 19 January 2011 (UTC)