What does “static” mean in C?

Question

I\'ve seen the word static used in different places in C code; is this like a static function/class in C# (where the implementation is shared across objects)?

Answer 1

A static variable is a special variable that you can use in a function, and it saves the data between calls, and it does not delete it between calls. For example:

void func(){
    static int count; // If you don't declare its value, the value automatically initializes to zero
    printf("%d, ", count);
    ++count;
}

void main(){
    while(true){
        func();
    }
}

The output:

0, 1, 2, 3, 4, 5, ...