Function Highs_setCallbackSparseSolution 

pub unsafe extern "C" fn Highs_setCallbackSparseSolution(
    data_in: *mut HighsCallbackDataIn,
    num_entries: HighsInt,
    index: *const HighsInt,
    value: *const f64,
) -> HighsInt

Set a partial primal solution by passing values for a set of variables, within a valid callback.

@param data_in A pointer to the callback input data instance. @param num_entries Number of variables in the set @param index Indices of variables in the set @param value Values of variables in the set

@returns A kHighsStatus constant indicating whether the call succeeded.