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整数同士の除算演算子の挙動(Elixir)

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はじめに

Elixir

a b a / b a % b div(a, b) rem(a, b)
5 4 1.25 SyntaxError 1 1
5 -4 -1.25 SyntaxError -1 1
-5 4 -1.25 SyntaxError -1 -1
-5 -4 1.25 SyntaxError 1 -1

Wrapping Up

  • /はいつもfloatになります
  • %はありません(SyntaxErrorになります)
  • 整数で結果が欲しい場合には、商が欲しいときはdiv/2を、余りが欲しいときにはrem/2を使います
  • Enjoy Elixir ! :rocket::rocket::rocket: :lgtm::lgtm::lgtm:
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