C++ constructor example

cpp_ctor_example.c

#if 0
g++ -std=c++17 -o a.out -Wall -Wextra $@ $0 || exit
./a.out
rm -f a.out
exit
#endif

#include <stdio.h>
#include <vector>

#ifndef NOEXCEPT
#define NOEXCEPT noexcept
#endif

class A
{
private:
    int i;
public:
    A(int i):i(i)
    {
        printf("A{%d} Ctor: %p\n", i, this);
    }

    ~A()
    {
        printf("A{%d} Dtor: %p\n", i, this);
    }

    A(const A& that) NOEXCEPT
    {
        i = that.i;
        printf("A{%d} Copy: %p <- %p\n", i, this, &that);
    }

    A(const A&& that) NOEXCEPT
    {
        i = that.i;
        printf("A{%d} Move: %p <- %p\n", i, this, &that);
    }
};

int main()
{
    A temp(1);
    std::vector<A> v;

    printf("Push 1\n");
    v.push_back(temp);

    printf("Push 2\n");
    v.push_back(A(2));

    printf("Exit\n");
    return 0;
}