Originally posted by: isczg

Hi all,

The ref doc states that IloTupleSet.add() method will return the tuple added or already existing, but I find it is not the case for "sorted" tuple sets.

Please run the following code, then you'll find that the return value not always equals the added value.

tuple T {
  key string s;
  int a;
}
sorted {T} ts;

execute {
  for (var i=0; i<100; i++) {
    var obj = ts.add(i.toString(), i);
    if (obj.a != i)  writeln(obj);  
  }
}

My Cplex Studio version is 12.6.0, and does  the problem above exist in newer version?

Is that a bug or just an implementary option forgotten to write on the doc?

Hi,

as a workaround you could write:

tuple T {
  key string s;
  int a;
}
{T} ts;

execute {
  for (var i=0; i<100; i++) {
    var obj = ts.add(i.toString(), i);
    if (obj.a != i)  writeln(obj,i);  
  }
}

sorted {T} ts2={i | i in ts};

execute
{
ts2;
}

regards

Originally posted by: isczg

Alex,

Thank you for the quick reply.

The example I wrote is a simplified one. The actual situation is much more complicated, such as storing the returned tuple of add() as an attribute of  other tuples and using the sorted set as index for kinds of arrays.  Anyway, there's always workarounds. I just wonder if they have fixed the bug(if it's really a bug) in the 12.6.3 release.

Regards

Hi,

this is not ok in 12.6.3 unfortunately.

Using an ordered set is not possible for you ? (This is the overall workaround I suggested)

regards

PS: are you a commercial user or a researcher ?

Originally posted by: isczg

Hello,

I want  sorted set for indexing purpose. I've sorted the ordered set using javascript sort() function after all tuples'd been added to the set, just like the workaround you suggested.

I'm a commercial user.

regards

Hi,

do not hesitate to log a PMR : http://www-01.ibm.com/support/docview.wss?uid=swg21507643

regards