c programming static variable initialization

Initializing ordinary variables is easy: put = expression after the variable name in a declaration, and the variable is initialized to the value of the expression.
As with all objects, whether you can use any expression, or just a constant expression, depends on its storage duration.

Can we initialize static variable?

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.

How to initialize static variable in C?

The syntax for declaring a static variable in C programming language is as follows: static data_type variable_name; In this syntax, "data_type" refers to the data type of the variable being declared (e.g., int, float, double, etc.), and "variable_name" is the name given to the variable._{20 avr. 2023}

Are static variables initialized to zero in C?

The C and C++ standards require that global and static variables that are not explicitly initialized must be set to 0 before program execution.

In C and C++, static variables, like global variables, are automatically initialized to zero if you don't provide an explicit initial value. This is a default behavior that ensures static and global variables start with a known value (zero) if you haven't specified another value during the declaration.

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1416 Static Variables

3 sept 1994 · Static variables may be initialized in their declarations; however, the initializers must be constant expressions, and initialization is done only once at compile time when memory is allocated for the static variable Figure 14 9 shows an example which sums integers, using static variables

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Static (Class-wide) Members

You have to define and initialize a static member variable somewhere in your code, at the top level (outside of any function), the same way you define and initialize a global variable The compiler will ensure that the initialization is done before your program starts executing at the main function

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