Hello ROOTers, I'm need some advice about variable length arrays. I'd like to make a tree which contains several arrays. In any one tree the arrays will all have the same length, but I may produce several trees in which the array lengths will differ, so I've declared the arrays as having variable length for rootcint. (Also, the number of arrays can change from one event to the next within the same tree.) To do this I put the array into a class, "MyArray", along with a data member giving the length. Then I make a TClonesArray of MyArrays, and put them into an "Event" object that goes in a tree. I'm able to create the tree, write it to a file, read it, and look at the data with Draw. However, when I use MakeClass to create a macro, called "TestClass", and execute its constructor, the data in my tree becomes lost. This occurs when the SetMakeClass(1) statement is executed. The attached tarfile contains a script called "test_it.C" that should make the library containing the classes and illustrate the problem. I'm guessing that the problem is with the way I've defined my tree... perhaps there is a simpler solution? I'm using ROOT 4.00/08 on a Sun Enterprise 420. Thanks in advance, Carter Hall
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