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//
// p.174
// Pointer type
#include <iostream>
using namespace std;
int main()
{
int x = 42;
float num = 1.1;
char ch = 'A';
// declare integer pointer?
int* ptr;
// let ptr points to x? p.175
ptr = &x;
char* q = &ch;
cout << "q = " << q << "\n";
cout << &x << "\t" << ptr << "\n";
// p.175 ex
string str;
string* sptr = &str;
cout << "sptr = " << sptr << "\n";
cout << *ptr << "\t" << x << "\n";
*ptr = 55;
cout << *ptr << "\t" << x << "\n";
return 0;
}