How to get the default value of any type

Question

In C# I can write something like this:

    class AnyThing
    {
        static public T Default = default(T);
    }

    static void Main ()
    {
              


        

Answer 1

In C++ there is no something like default keyword in C#. Since initialization by default constructor of value of class-type will be failed, if default constructor is private. In C#, if default constructor is private, value of class-type will be initialized to null, since class-type is reference-type.

Initialition by {} is defined by language specification. It's C++11. In C++03 you should use

T obj = T();

As pointed by bames53 in comment, when you want to initialize T* you should use

before C++11.

T* obj = 0;

or

T* obj = NULL;

in C++11.

T* obj = {};

or

T* obj = nullptr;