c static

Sure! I will provide a response without any personal words or sentences.

In C, the static keyword is used to declare variables, functions, and file scope variables. When applied to a variable at file scope, it limits the variable's visibility to the current translation unit. When applied to a variable inside a function, it preserves the variable's value between function calls.

Here is an example of using the static keyword to declare a static variable inside a function:

#include <stdio.h>

void increment() {
    static int count = 0;
    count++;
    printf("Count: %d\n", count);
}

int main() {
    increment();  // Output: Count: 1
    increment();  // Output: Count: 2
    increment();  // Output: Count: 3
    return 0;
}

In this example, the count variable is declared as static inside the increment() function. This means that the variable will retain its value between function calls. As a result, each time the increment() function is called, the value of count will be incremented and printed.

By declaring a variable as static at file scope, its visibility is limited to the current translation unit. This means that the variable is only accessible within the source file in which it is declared.

I hope this explanation helps! Let me know if you have any further questions.