NSDMI: Copy and Move Constructors

In this lesson, you will learn how non-static data member initialization works with move and copy constructors.

We'll cover the following...

- Copy constructor
- Move constructor

C++ 17

#include <iostream>
#include <string>
int initA() {
    std::cout << "initA() called\n";
    return 1;
}
std::string initB() {
    std::cout << "initB() called\n";
    return "World";
}
struct SimpleType {        
    int a { initA() }; 
    std::string b { initB() };
    SimpleType() { }
    SimpleType(std::string s) : b(std::move(s)) { }
    
    SimpleType(const SimpleType& other) {
        std::cout << "copy ctor\n";
        
        a = other.a;
        b = other.b;
    };
};
int main() {
    SimpleType t1;
    std::cout << "SimpleType t2 = t1:\n";
    SimpleType t2 = t1;
}

NSDMI: Copy and Move Constructors

Copy constructor