¿Se inicializan las variables locales estáticas?

Are static local variables initialized?

Local static variable: constructor is only called when execution reaches its declaration at first time. If Local static variable is POD type, then it is also initialized before enter main function (1).

3. Is initialisation mandatory for local static variables? Explanation: None.

A static variable in a block is initialized only one time, prior to program execution, whereas an auto variable that has an initializer is initialized every time it comes into existence. A static object of class type will use the default constructor if you do not initialize it.

In C, static variables can only be initialized using constant literals. For example, following program fails in compilation. The reason for this is simple: All objects with static storage duration must be initialized (set to their initial values) before execution of main() starts.

Explanation: The keyword used to declare static variables is static. This is must be used while declaring the static variables. The compiler can make variables static if and only if they are mentioned with static keyword.

An object either is fully initialized (to 0 of the right kind in the absence of a different value) or not initialized at all. If you want partial initialization, you can’t initialize to begin with. Yes, they are, as long they have static or thread storage duration.

Local static variable: constructor is only called when execution reaches its declaration at first time. If Local static variable is POD type, then it is also initialized before enter main function (1) . Example for POD type: static int number = 10;

After all static initialization is completed, dynamic initialization of non-local variables occurs in the following situations: 1) Unordered dynamic initialization, which applies only to (static/thread-local) class template static data members and variable templates (since C++14) that aren’t explicitly specialized.

You can also have instance methods, member variables, and initialization code, which have no modifier, and local variables. Static methods, variables, and initialization code have these characteristics. They’re associated with a class. They’re allowed only in outer classes. They’re initialized only when a class is loaded.