/* Faan Tone Liu
 * Jan 22, 2003
 * Demo program for comp 1672
 * Demonstrates the relationship between pointers and arrays
 */

#include <iostream>
#include <cstring>
using namespace std;

void output_list(float *, int);

int main()
{
    char myarray[] = "Old MacDonald had a farm";
    char *cptr;
    int i;

    // set cptr to point to the beginning of the array myarray
    cptr = myarray;
    // traverse the array using cptr, ouput one character at a time
    for (i=0; i < strlen(myarray); i++) {
        cout << *(cptr+i);
        //cout << *cptr + i;  This line is wrong, the order of operations
        // make it add i to character, instead of to the pointer
    }
    cout << endl;

    // Here's a loop that does the exact same thing as the above loop
    // The loop is controlled by the pointer now, instead of an integer variable
    for (cptr = myarray; *cptr != '\0'; cptr++)
        cout << *cptr;
    cout << endl;

    float arr[5] = {1, 2, 3, 4, 5};
    float *fp;
    fp = arr;
    output_list(fp, 5);

}

void output_list(float *list, int len)
{
    int i;
    for (i=0; i < 5; i++, list++)
       cout << *list;
}