通过std :: vector进行迭代的面向对象方法? [英] Object Oriented way to iterate through a std::vector?

问题描述

我有一个带有std :: vector子控件指针的类.出于明显的原因，我不希望该类的用户直接访问std :: vector.我想要的只是一种给调用者指针的方法. OO这样做的一种好方法是什么? (此函数将经常调用)

I have a class which has a std::vector of child control pointer. For obvious reasons, I do not want the user of the class to have direct access to the std::vector. All I would want is a way to give the caller the pointers. What would be a good OO way to do this? (this function will be called often)

谢谢

推荐答案

提供一个向向量返回const_iterator的函数.添加一个将迭代器返回到向量的末尾也很有用.

Provide a function that returns a const_iterator to the vector. It is also useful to add one to return the iterator to the end of the vector.

class MyClass {
public:
  typedef vector<T>::const_iterator c_iter;

  c_iter getBegin() const {return v.begin();}
  c_iter getEnd() const {return v.end();}

  // and perhaps if it's useful and not too invasive.
  const T& getAt(int i) const {return v.at(i);}

  //stuff
  vector<T> v;
};

这篇关于通过std :: vector进行迭代的面向对象方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！