在模板和继承的C ++中使用未声明的标识符 [英] Use of undeclared identifier in C++ with templates and inheritance

问题描述

以下代码无法编译 - 使用未声明的标识符。我使用GCC和XCode进行编译。

The following code cannot compile - use of undeclared identifier. I use GCC and XCode for compilation.

一切都在一个头文件中。

Everything is in a single header file.

include "MyArray.h"

template <typename T>
class MyBase {
public:
  MyBase();
  virtual ~MyBase();
  void addStuff(T* someStuff);
protected:
  MyArray<T*> stuff;
};

template <typename T>
MyBase<T>::MyBase() {}
template <typename T>
MyBase<T>::~MyBase() {}

template <typename T>
void MyBase<T>::addStuff(T* someStuff) {
  stuff.add(someStuff);
}

// ---------------------

template <typename T>
class MyDerived : public MyBase<T> {
public:
  MyDerived();
  virtual ~MyDerived();
  virtual void doSomething();
};

template <typename T>
MyDerived<T>::MyDerived() {}
template <typename T>
MyDerived<T>::~MyDerived() {}

template <typename T>
void MyDerived<T>::doSomething() {
  T* thingy = new T();
  addStuff(thingy); //here's the compile error. addStuff is not declared.
}

有没有人有解释？
提前感谢！

Does anyone have an explanation? Thanks in advance!

推荐答案

试用

this->addStuff(thingy);

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