Does anyone know how deep conditional branching can go?

I'm using loops, case statements, if .. then else.. nested in each other.

Thanks,

Dale

Well, at compile time, these get converted into labels, ifs, and gotos. I doubt if there is a limit other than number of variables available. The real question, though, is whether you are going to add meatballs to the spaghetti.

That depends on the ingredients in the meatball, whether the spaghetti has veggies in it and whats in the sauce to say nothing of the cheese.

Dale

If you are using many conditions for selection, then one technique is to assign a power of two to each condition, and use a case statement. eg.

CARTYPE=0

IF CAR=RED" THEN CARTYPE=CARTYPE + 1

IF CAR=BLUE" THEN CARTYPE=CARTYPE + 2

IF CAR=PINK" THEN CARTYPE=CARTYPE + 4

IF CAR=AUTO" THEN CARTYPE=CARTYPE + 8

That way you're only maintaining one integer for the attributes

You can then test/branch using the BITAND command

IF BITAND(CARTYPE,1) THEN PRINT "Car is Red"

IF BITAND(CARTYPE,2) THEN PRINT "Car is Blue"

IF BITAND(CARTYPE,4) THEN PRINT "Car is Pink"

IF BITAND(CARTYPE,8) THEN PRINT "Car is Auto"

You can also readily test for combinations

IF BITAND(CARTYPE,12) THEN PRINT "Car is a Pink Auto"

Effectively you're using one bit for each attribute, turning it

on or off in a binary sense by adding to CARTYPE. This is probably

the most efficient use of storage and variables for complicated problems. Beware of the upper limits of the integer math in AREV, though - the scientific notation is naturally too coarse to use

here.

Steve

I use case statements very often and embed them in loops, for statements, and within them I use if then else statements. I understand what you are saying. I was wondering how "deep" I can go.

Is there a limit? The reason that I ask, is that about seven layers deep I need to know what values are being used so I can troubleshoot my routines. I use generally the following format:

PRINT "THIS IS variable1: ":variable1

etc.

PRINT "OK? ":; INPUT Q,2 ; IF Q=N' THEN STOP

This way I can allow the execution of the program after briefly looking at the data.

Thanks,

Dale

As Victor said, there is no real limit (until you get about 1000 conditions deep).

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