C++17 STL Cookbook

How to do it...

We will write a program that shows us how unique_ptr handles memory by creating a custom type that adds some debug messages upon its construction and destruction. Then, we will play around with unique pointers, maintaining dynamically allocated instances of it:

1. First, we include the necessary headers and declare that we use the std namespace:

      #include <iostream>      #include <memory>        using namespace std;

2. We are going to implement a little class for the object we are going to manage using unique_ptr. Its constructor and destructor print to the terminal, so we can see later when it is actually automatically deleted:

      class Foo      {      public:          string name;          Foo(string n)              : name{move(n)}          { cout << "CTOR " << name << '\n'; } ~Foo() ...