Chapter 6, Problem 32RQE

Explanation of Solution

Static local variable:

The variable which is declared inside the function with the keyword “static” is referred to as static local variables.

• The declaration of the static variable is same as the normal variable declaration, but it should be preceded with the “static” keyword in front the variable.
• A program can have multiple static local variables in different functions.

Syntax for declaring static local variable:

Static datatype variable_name;

Example:

static int a=10;

Usage of static local variable:

The uses of static local variable are:

• It makes the function to maintain the value between the function calls.
• When a function returns, the static variables used in the function are not destroyed.

Example program:

The following example program demonstrates the usage of static local variable.

/*Include required variables*/

#include<iostream>

using namespace std;

/*Function prototype*/

void display();

/*Main function*/

int main()

{

/*Loop till "count" variable is less than "10"*/

for (int count = 0; count < 10; count++)//Line 6

/*Call the function "display()"*/

display();

/*Return the value 0*/

return 0;

}

/*Function definition*/

void display()

{

/*Variable "number" is declared as static "int" and assign "20" to it*...