common_size not working for classes?

[CdeMills]

Hello,

I tried to use this function on multi-precision objects, this generates an
error:

error: can't perform indexing operations for class type
error: called from
    common_size at line 75 column 27
    betainc at line 4 column 21
stopped in /usr/share/octave/3.6.4/m/general/common_size.m

I suspect the problem to be inside libinterp/corefcn/cellfun.cc:
 for (octave_idx_type i = 0; i < nel; i++)
            {
              octave_quit ();
              octave_value tmp = x(i);
              y(i) = tmp.do_index_op (idx);
              if (error_state)
                break;
            }

Is there some function to implement into the class in order to support the
do_index_op ?

Regards

Pascal









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