/in/foo.cc: In member function 'void BinTree::Insert(Node*)':
/in/foo.cc:34:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
    if (newp->data < p->data)
       ^
/in/foo.cc:42:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
    if (newp->data > p->data)
       ^