Recursion in Tclprocs

[garry r fisher]

Hi,

I have a requirement where I need to use recursion in a Tclproc but I can’t figure out how to do it.

I’ve tried using a namespace for the recursed proc that I can’t get it to work. So is there a way of doing it?

Any thoughts on this would be greatly appreciated.

Regards

Garry

Topic

[Charlie Bursell]

I don’t know what problems you are having but Tcl does support recursion to a limit.  I think the limit right now is 1000 levels.  Of course, this also assumes you don’t overrun 32-bit limits of numbers, etc.

Go to comp.lang.tcl on Google and search for recursion

[garry r fisher]

Hi Charlie,

I’m not having a problem with recursion in Tcl – My problem is how do you use recursion in a Tclproc. It maybe the way I was taught but how do you call a proc from within the same proc in Cloverleaf?

Regards

Garry

[Charlie Bursell]

Just call it  For example, from comp.lang.tcl

proc fact num {

 if {$num==1} {

   return 1

 } else {

   set num [expr {[fact [expr {($num-1)}]]*$num}]

   return $num

 }

}

[garry r fisher]

I’m happy with that.

My scenario is if I have a tps that calls aonther proc – and that other proc then calls itself – How would I set this up in Cloverleaf? Ican’t get this to work using a namespace for the second proc – Is that the right way of doing it or should it be in a separate library?

Garry

[Robert Milfajt]

I am not sure I understand your question.

If your TCL proc is defined in the directory with all your others, and you ran mktclindex, you should be able to reference that proc from any other proc including itself.

Robert Milfajt
Northwestern Medicine
Chicago, IL

[Jim Kosloskey]

Garry,

Send me an email directly and I will send you an example proc I think addresses your needs.

Also, Welch’s book on Tcl has a pretty good explanation of the use of namespaces.

email: jim.kosloskey@jim-kosloskey.com

[Author]

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