Scala - Core Scala - Functions(recursive function, tail-recursive, return type, Unit)

Learning Scala:
Practical Functional Programming for the JVM
(O'Reilly Media)
Jason Swartz (著)

開発環境

• OS X Yosemite - Apple (OS)
• Emacs (Text Editor)
• Scala (プログラミング言語)

Learning Scala: Practical Functional Programming for the JVM (Jason Swartz (著)、O'Reilly Media)のPart Ⅰ. (Core Scala)、Chapter 4.(Functions)、Exercises 3.(No. 1471)を解いてみる。

その他参考書籍

• Programming Scala: Scalability = Functional Programming + Objects

Exercises 3.(No. 1471)

コード(Emacs)

@annotation.tailrec
def func(n: Int) : Unit = {
  if (n <= 50) {
    println(n)
    func (n + 5)
  }
}

func(5)

入出力結果(Terminal, REPL(Read, Eval, Print, Loop))

$ scala-2.11 sample3.scala
5
10
15
20
25
30
35
40
45
50
$