Arbre suma d'un arbre n-ari

static void i_arb_sumes(node_arbreNari* n, node_arbreNari* &m, int &suma) {
    if (n == NULL){
        m = NULL;
        suma = 0;
    }
    else {
        suma = n->info;
        m = new node_arbreNari;
        m->seg = vector<node_arbreNari*> (n->seg.size());
        for (int i = 0; i < n->seg.size(); i++){
            int aux;
            i_arb_sumes(n->seg[i], m->seg[i], aux);
            suma += aux;
        }
        m->info = suma;
    }
}

void arbsuma(ArbreNari& asum) const
/* Pre: cert */
/* Post: asum ĂŠs l'arbre suma del p.i. */
{
    int suma;
    i_arb_sumes(primer_node, asum.primer_node, suma);
    asum.N = N;
}