The following code generates a concatenation of neighborhoods. The set of neighbors of the new neighborhood is the union of the neighbors of nhoods or nhood1 and nhood2, depending on the signature used.

IloNHood IloConcatenate(IloEnv env,
                        IloNHoodArray nhoods,
                        const char *name = 0);
IloNHood operator + (IloNHood nhood1, IloNHood nhood2);

The following code generates a neighborhood which behaves exactly like nhood, except that the generated neighborhood adjusts the indices passed to nhood. The adjustment is based on the previously accepted move. If the index (as passed to nhood) of the previous move accepted was k, then the indices passed to nhood will begin at k + offset + 1 modulo the size of the neighborhood for the next move.

IloNHood IloContinue(IloEnv env,
                     IloNHood nhood,
                     IloInt offset = 0,
                     const char *name = 0);