C++将数组指针作为函数参数传递

#include<iostream>
using namespace std;

void modifyArray(int *arr, int size) {
    for (int i = 0; i< size; i++) {
        arr[i] = arr[i] * 2;
    }
}

int main() {
    int arr[] = {1, 2, 3, 4, 5};
    int size = sizeof(arr) / sizeof(arr[0]);

    cout << "Original array: "<< endl;
    for (int i = 0; i< size; i++) {
        cout<< arr[i] << " ";
    }
    cout<< endl;

    modifyArray(arr, size);

    cout << "Modified array: "<< endl;
    for (int i = 0; i< size; i++) {
        cout<< arr[i] << " ";
    }
    cout<< endl;

    return 0;
}