Beginning C++ Through Gam…rogramming (2nd Edition)/BCGP2E.ISO/source/chapter07/array_passer.cpp

C/C++ Source or Header | 2004-04-11 | 1KB | 43 lines

//Array Passer
//Demonstrates relationship between pointers and arrays

#include <iostream>

using namespace std;

void increase(int* const array, const int NUM_ELEMENTS);
void display(const int* const array, const int NUM_ELEMENTS);

int main()
{
    cout << "Creating an array of high scores.\n\n";
    const int NUM_SCORES = 3;
    int highScores[NUM_SCORES] = {5000, 3500, 2700};

    cout << "Displaying scores using array name as a constant pointer.\n";
    cout << *highScores << endl;
    cout << *(highScores + 1) << endl;
    cout << *(highScores + 2) << "\n\n";

    cout << "Increasing scores by passing array as a constant pointer.\n\n";
    increase(highScores, NUM_SCORES);

    cout << "Displaying scores by passing array as a constant pointer to a constant.\n";
    display(highScores, NUM_SCORES);

    return 0;
}

void increase(int* const array, const int NUM_ELEMENTS)
{
    for (int i = 0; i < NUM_ELEMENTS; ++i)
        array[i] += 500;
}

void display(const int* const array, const int NUM_ELEMENTS)
{
    for (int i = 0; i < NUM_ELEMENTS; ++i)
        cout << array[i] << endl;
}