C Programming

Another interesting datatype is the one of "trees".

gboolean prn(GNode* node, gpointer data) {
  if(node->data!=NULL) {
    g_print(node->data);
    g_print(" ");
  }
  return 0;
}

void main() {
  GNode* root = g_node_new(NULL);
  GNode* v0   = g_node_new("0");
  g_node_append(root,v0);
  GNode* v1   = g_node_new("1");
  g_node_append(root,v1);
  GNode* v00   = g_node_new("00");
  g_node_append(v0,v00);
  GNode* v01   = g_node_new("01");
  g_node_append(v0,v01);
  GNode* v10   = g_node_new("10");
  g_node_append(v1,v10);
  GNode* v11   = g_node_new("11");
  g_node_append(v1,v11);
  g_node_traverse(root, G_LEVEL_ORDER, G_TRAVERSE_LEAVES,-1,prn,NULL);
}