Thanks I actually have this in place due to the fact that the initial call is for one parent (i.e maternal or paternal lineage), and subsequent (recursive) calls are for both parents; however I am reluctant to use the level limit as I do not know what a 'real' limit is. With a breeding colony, the genealogy could go back many many generations, and while a limit for monkeys might be 10, a limit for mice might be 100, how many generations do you limit fruit flies, or bacteria?
On Fri, 16 Nov 2018 08:46:04 +0100, Ingo Wolf via 4D_Tech wrote: > In such cases I use a longint parameter "level" to the recursive > method. On first run this parameter is set to 1 and is incremented > with every level of recursion. I then test for an arbitrary "level" > (e.g. 1000) and abort the further recursion. > > HTH > Ingo Wolf > > > [email protected] schrieb am Thu, 15 Nov 2018 12:00:01 -0800: >> From: Chip Scheide <[email protected]> >> To: 4D iNug Technical <[email protected]> >> Subject: v13 - how to manage not enough stack space error >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset=us-ascii >> >> >> I have a recursive routine (genology) >> The routine is fine and works as expected - as long as the data is >> valid. >> >> I was working in my test data, which I have apparently F*&^%ed and the >> routine recurses until I get a stack error and 4D crashes (stand alone). >> >> How can I manage this so that I can exit the recursion gracefully with >> a useful(?) error message. Memory available measurements? free stack >> space? >> I.E. The operation is being truncated due to inconsistent data. >> >> Thanks >> Chip > > > -- > ViELMAC Ingo Wolf > Rheinhessenring 53A > D 55597 Wöllstein > Tel. +49 (0)6703 3070320 > Fax +49 (0)6703 3070321 > e-mail [email protected] > ********************************************************************** > 4D Internet Users Group (4D iNUG) > Archive: http://lists.4d.com/archives.html > Options: https://lists.4d.com/mailman/options/4d_tech > Unsub: mailto:[email protected] > ********************************************************************** --------------- Gas is for washing parts Alcohol is for drinkin' Nitromethane is for racing ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
