/*
 * Copyright (C) 2007-2020 Artima, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Automatically generated Scala interpreter transcript from:
 *
 * Programming in Scala (Fifth Edition)
 * by Martin Odersky, Lex Spoon, Bill Venners, and Frank Sommers
 *
 * http://booksites.artima.com/programming_in_scala_5ed
 */


scala>   def maxList[T](elements: List[T])
               (using ordering: Ordering[T]): T =
       
           elements match
             case List() =>
               throw new IllegalArgumentException("empty list!")
             case List(x) => x
             case x :: rest =>
               val maxRest = maxList(rest)(using ordering)
               if ordering.gt(x, maxRest) then x
               else maxRest

                      (using ordering: Ordering[T]): T =
                             ^
On line 2: error: ':' expected but identifier found.
                      if ordering.gt(x, maxRest) then x
                                                 ^
On line 10: warning: then is a reserved word (since 2.10.0); usage as an identifier is deprecated

scala> "hello" == Option("hello") // (in Scala 3)
res0: Boolean = false

scala> val streetStr: String = street
                               ^
       error: not found: value street