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名前空間
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      Namespace aliases

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      名前空間のエイリアスは、プログラマが名前空間の別名を定義することができます.
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      Namespace aliases allow the programmer to define an alternate name for a namespace.
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      彼らは一般的に長い、または深くネストされた名前空間のための便利なショートカットとして使用されている.
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      They are commonly used as a convenient shortcut for long or deeply-nested namespaces.
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      目次

      [編集]構文

      namespacealias_name = ns_name; (1)
      namespacealias_name = ::ns_name; (2)
      namespacealias_name = nested_name::ns_name; (3)

      [編集]説明

      新しいエイリアスalias_nameはns_nameにアクセスするための代替方法を提供しています.
      Original:
      The new alias alias_name provides an alternate method of accessing ns_name.
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      alias_nameは、以前に使用されていない名前でなければなりません。 alias_name、それが導入されたスコープの存続期間中にのみ有効です.
      Original:
      alias_name must be a name not previously used. alias_name is valid for the duration of the scope in which it is introduced.
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      [編集]例

      このコードを実行します
      #include <iostream>   namespace foo {namespace bar {namespace baz {int qux =42;}}}   namespace fbz = foo::bar::baz;   int main(){std::cout<< fbz::qux<<'\n';}

      出力: 

      42

      [編集]参照

      名前空間の宣言
      名前空間を識別します
      Original:
      identifies a namespace
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      [edit]
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