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GRBVar::index()

int index ( )

    This method returns the current index, or order, of the variable in the underlying constraint matrix.

    Return value:

    <span>$</span>= -2<span>$</span> : removed
    <span>$</span>= -1<span>$</span> : not in model
    <span>$</span>\geq 0<span>$</span> : index of the variable in the model

    Note that the index of a variable may change after subsequent model modifications.

next up previous
Next: GRBVar::sameAs() Up: GRBVar Previous: GRBVar::get()