PCinvent Studio - My Old C++ Pointer Homework

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C++ pointer is so Disgusting but powerful. But I think I hate to be a lower level program to deal with physical memory, owning the concept and knowing how it work should be enough. Here is the Pointer usage example I demonstrate......

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#include <iostream>
using namespace std;

void main(void)
{
   int a=999;   //Init value to a
   cout<<"a=1, &a: "<<&a<<endl;   //0012ff60

   int *ptr; //define pinter to int
   ptr = &a;   //point ptr to memory address of a; ptr now is the memory address
   cout<<"ptr=&a, ptr= : "<<ptr<<endl;   //0012ff60

   int b;
   b = *&a;   //de-refernce of memory address of. Go Memory=>Get its value
   cout<<"b = *&a, b="<<b<<endl;       //999

   int c;
   c=*ptr; //C go to memory address which ptr holds=>de-reference and get its value
   cout<<"c=*ptr; c= : "<<c<<endl;       //999
   cout<<"*ptr= : "<<*ptr<<endl;       //999

   //array
   int array[] = {2, 4, 6};
   int t;
   cout<<"array: "<<array<<endl;   //Array name is a pointer
   cout<<"array[0]: "<<array[0]<<endl;
   array[0]=1;
   cout<<"array[0]=1; array[0]= : "<<array[0]<<endl;

   //copy array of char
   //char arrayA[3]="abc"; //overflow will cause error because it need a \o terminator
   char arrayA[4]="abc";
   char arrayB[4]="xyz";
   //array2[]=array[];//wrong string already defined in compile not runtime
   strcpy(arrayA, arrayB);
   cout<<"arrayA[4]=\"abc\", arrayB[4]=\"xyz\"; arrayA : "<<arrayA<<endl; //A will become B
   cout<<"strlen(arrayA) : "<<strlen(arrayA)<<endl;//string length of array (array name) = 3
}