Static variable

#1

I didn’t understand what is a static variable

#2

hi @Senjuti256 a static variable, once initialised, retains its value during the subsequent calls to the function.

Static variables in a Function : When a variable is declared as static, space for it gets allocated for the lifetime of the program . Even if the function is called multiple times, space for the static variable is allocated only once and the value of variable in the previous call gets carried through the next function call.

// C++ program to demonstrate

// the use of static Static

// variables in a Function

#include <iostream>

#include <string>

using namespace std;

void demo()

{

// static variable

static int count = 0;

cout << count << " " ;

// value is updated and

// will be carried to next

// function calls

count++;

}

int main()

{

for ( int i=0; i<5; i++)

demo();

return 0;

}

Output:

0 1 2 3 4