访问类中的向量 [英] Accessing vector in class

问题描述

如果我有一个向量作为我的类中的私人成员，什么是最好的方式访问它？例如，取以下简单类

If I have a vector as a private member in my class, what's the best way to access it? For example, take the following simple class

class MCL{
    private:
    std::vector my_vec;

    public:
    // Include constructor here and other member functions
}

访问my_vec的最佳方法是什么？具体来说，我想使用getter函数来访问它。

What's the best way to access my_vec? Specifically, I would like to use a getter function to access it.

推荐答案

通过const引用返回它，您要允许更改。

return it by const reference, or just by reference if you want to allow changing.

const std::vector<T> & getVector() const
{
    return vector;
}

用法：

const std::vector<T> &v = myClass.getVector();

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