addpntrs.cpp

// addpntrs.cpp -- pointer addition
#include <iostream>
int main(){
  using namespace std;
  double wages[3]={100,200,300};
  short stacks[3]={3,2,1};

  double *pw=wages;
  short *ps=&stacks[0];

  cout<<"pw = "<<pw<<", *pw = "<<*pw<<"\n\n";
  pw+=1;

  cout<<"add 1 to the pw pointer:\n";
  cout<<"pw = "<<pw<<", *pw = "<<*pw<<"\n\n";

  cout<<"ps = "<<ps<<", *ps = "<<*ps<<"\n\n";
  ps+=1;
  cout<<"add 1 to the ps pointer:\n";
  cout<<"ps = "<<ps<<", *ps = "<<*ps<<"\n\n";

  cout<<"access two elements with array notation\n";
  cout<<"stacks[0]= "<<stacks[0];
  cout<<", stacks[1]= "<<stacks[1]<<endl;
  cout<<"access two elements with pointer notation\n";
  cout<<"*stacks= "<<*stacks;
  cout<<", *(stacks+1)= "<<*(stacks+1)<<endl;

  cout<<"sizeof(wages) = "<<sizeof(wages)<<endl;
  cout<<"sizeof(pw) = "<<sizeof(pw)<<endl;
  return 0;
}