solver_next_solutionelement
elementId = solver_next_solutionelement(fSolver, problem->Id(),
while ((element = solver_next_solutionelement(solv, problem, solution, element, &p, &op)) != 0)
while ((element = solver_next_solutionelement(solv, problem, solution, element, &p, &rp)) != 0)
Id solver_next_solutionelement(struct _Solver *solv, Id problem, Id solution, Id element, Id *p, Id *rp);
while ((element = solver_next_solutionelement(solv, problem, solution, element, &p, &rp)) != 0)