Thread: Move-assignment operator on class with const-declared member variables

Which I can understand… So I am not sure that there can be a better way than what I showed in my previous post
Or perhaps there is ?

Or maybe you just did it wrong? I don't know what to tell you; works for me.

Code:

#include <string>
#include <vector>
#include <iostream>


class ArrayWrapper
{
public:
    ArrayWrapper(std::string label, std::initializer_list<double> inits = {})
    : lbl_(label), arr_(inits)    // constructor
    {
    }
    ~ArrayWrapper() = default;  // destructor
    ArrayWrapper(ArrayWrapper const &) = default;    // copy constructor
    ArrayWrapper& operator=(ArrayWrapper const &) = default;   // copy assignment
    ArrayWrapper(ArrayWrapper&&) = default;    // move constructor 
    ArrayWrapper&  operator=(ArrayWrapper&&) = default;    // move assignment


    ArrayWrapper(ArrayWrapper const & other, std::string label) 
    : ArrayWrapper(other)
    {
        lbl_ = label;
    }


    void
    dispContent()
    {
        std::cout << "Array \"" << lbl_ << "\" : ";
        for(const auto elem : arr_) {
            std::cout << elem << ", ";
        }
        std::cout << std::endl;
    }
private:
    std::vector<double> arr_;
    std::string lbl_;
};


int main()
{
    ArrayWrapper a1("a1", {1, 2, 3});
    ArrayWrapper a2(a1, "a2");
    a1.dispContent();
    a2.dispContent();
}

Maybe you can spot the difference between my listing and yours.

Here is how I compiled:

Code:

-*- mode: compilation; default-directory: "c:/Users/jk/Desktop/" -*-
Compilation started at Thu May 26 11:30:41


g++ -std=c++11 galdor.cpp


Compilation finished at Thu May 26 11:30:42

g++ (GCC) 4.8.1
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This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.