Hello, can you the boolean code for preOrderAdd? C++ only.

template bool BinThreadTree::preOrderAdd( BaseData item) {

/* TODO */

return true ; }

template void BinThreadTree::preorder(void (*processNode)(BaseData &item)) {

threadBinNode *p; p = static_cast< threadBinNode* > ( BinThreadTree::root -> leftChild ) ;

do { if ( p != BinThreadTree::root ) processNode( p->info ); if (!p -> leftThread ) p = static_cast< threadBinNode* >(p -> leftChild); else p = static_cast< threadBinNode* >(p->rightChild);

} while (p != BinThreadTree::root );

}