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0_0_17021141_2229.cpp:1:4: error: expected constructor, destructor, or type conversion before '(' token
 Exp( p ) is    var t : Tree    t := P    while next is a binary operator and prec(binary(next)) >= p       const op := binary(next)       consume       const q := case associativity(op)                  of Right: prec( op )                     Left:  1+prec( op )       const t1 := Exp( q )       t := mkNode( op, t, t1)    return t
    ^