Change the contents of an array using a function : function parameters « Function « C++ Tutorial

1. C++ Tutorial
2. Function
3. function parameters

#include <iostream> 
using namespace std; 
 
void f(int *n, int num); 
 
int main() 
{ 
  int i, nums[10]; 
 
  for(i=0; i < 10; i++) nums[i] = i+1; 
 
  cout << "Original contents: "; 
  for(i=0; i < 10; i++) cout << nums[i] << ' '; 
  cout << '\n'; 
 
  f(nums, 10); // compute cubes 
 
  cout << "Altered contents: "; 
  for(i=0; i<10; i++) cout << nums[i] << ' '; 
 
  return 0; 
} 
 

void f(int *n, int num) 
{ 
  while(num) { 
    *n = *n * *n ; 
    num--; 
    n++; 
  } 
}

Original contents: 1 2 3 4 5 6 7 8 9 10
Altered contents: 1 4 9 16 25 36 49 64 81 100