相关疑难解决方法(0)

我正在设计一个类，它应该有一个名为K. 我也希望这个类有一个复制赋值运算符，但编译器似乎从任何具有 const 数据成员的类中隐式删除了复制赋值运算符。这段代码说明了基本问题：

class A
{
    private:
       const int K;
    public:
       A(int k) : K(k) {} // constructor
       A() = delete; // delete default constructor, since we have to set K at initialization

       A & operator=(A const & in) { K = in.K; } // copy assignment operator that generates the error below
}

这是它生成的错误：

constructor.cpp:13:35: error: cannot assign to non-static data member 'K' with const- 
qualified type 'const int'
            A & operator=(A const & in) { …