Illustrating Different Ways to Pass Arrays to a Function:

[11gurmeet11]

#include < iostream >

using namespace std;

// passing array as a sized array argument.

void printArraySized(int arr[3], int n)
{
cout << "Array as Sized Array Argument: ";
for (int i = 0; i < n; i++) {
cout << arr[i] << " ";
}
cout << endl;
}

// passing array as an unsized array argument.

void printArrayUnsized(int arr[], int n)
{
cout << "Array as Unsized Array Argument: ";
for (int i = 0; i < n; i++) {
cout << *(arr + i) << " ";
}
cout << endl;
}

// Passing array as a pointer argument.

void printArrayPointer(int* ptr, int n)
{
// Print array elements using pointer pointer.
// that store the address of array passed.

cout << "Array as Pointer Argument: ";
for (int i = 0; i < n; i++) {
    cout << ptr[i] << " ";
}

}

int main()
{

int arr[] = { 10, 20, 30 };

// Call function print Array and pass array and its size to it.
printArraySized(arr, 3);
printArrayUnsized(arr, 3);
printArrayPointer(arr, 3);

return 0;

}

Output ☞

Array as Sized Array Argument :10 20 30
Array as Unsized Array Argument: 10 20 30
Array as Pointer Argument: 10 20 30

[github-actions]

Hello @11gurmeet11, thanks for creating your first issue at LearnCPP, hope you followed the guidelines.