C++ Tutorial/Data Types/register variables

Demonstrate register variables

<source lang="cpp">#include <iostream> using namespace std;

int f(int nums[], int n);

int main() {

 int vals[] = { 1, 2, 3, 4, 5 }; 
 int result; 

 result = f(vals, 5); 

 cout << "Summation is " << result << "\n"; 

 return 0; 

}

int f(int nums[], int n) {

 register int i; 
 register int sum = 0; 

 for(i = 0; i < n; i++) 
   sum = sum + nums[i]; 

 return sum; 

}</source>

Summation is 15