[计算机科学经

3 cc instantiation model 149 fdouble poi 2function

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Unformatted text preview: 型別來具現化㆒個 template template parameter。 和往常㆒樣,你也可以改用關鍵字 class 而不使用關鍵字 typename 來宣告㆒個 template parameter;但 CONT 定義的是㆒個 class 型別,因此你必須使用關鍵字 class 來宣告它。所以, ㆘面的程式碼是正確的: template <typename T, template <typename ELEM> class CONT = std::deque > class Stack { ... }; //OK ㆘面的程式碼則是錯誤的: template <typename T, template <typename ELEM> typename CONT = std::deque > //ERROR class Stack { ... }; 由於 template template parameter ㆗的 template parameter 實際並未用到,因此你可以省略其名稱: template <typename T, template <typename> class CONT = std::deque > class Stack { ... }; 所有成員函式也必須按此原則修改:必須指定其第㆓個 template parameter 為 template template parameter。同樣的規則也適用於成員函式的實作部份。例如成員函式 push()應該實作如㆘: template <typename T, template <typename> class CONT> void Stack<T,CONT>::push (T const& elem) { elems.push_back(elem); // 追加元素 } 另請注意,functi...
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This note was uploaded on 08/25/2012 for the course EECS 101 taught by Professor Wre during the Fall '12 term at Beacon FL.

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