[ADOL-C] active_integer

[Manuel Kudruss]

Dear all,
i'm using ADOL-C to generate derivatives for experimental design
problems. 
The coefficients of the function i want to differentiate, may change
during the ADOL-C call, but there won't be any derivatives with respect
to them.
Is there an alternative to retaping in each step? Maybe an approach like
setting the integers or doubles active and pass them with the
independant variables.
Maybe someone knows a solution or work-around.
Thanks a lot,
Manuel Kudruss