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C++ Program - Subtracting Pointers

Posted Date: Total Responses: 0 Posted By: K Dinesh Reddy Member Level: Diamond Points/Cash: 2

// Subtracting Pointers

#include
using namespace std;

int main()
{ char s[] = "ABCDEFGHIJ";
char* p = &s[3]; // p points to s[3]
char* q = &s[6]; // q points to s[6]
cout << "*p = " << *p << ", *q = " << *q << endl;
--p; // p points to s[2]
++q; // q points to s[7]
cout << "*p = " << *p << ", *q = " << *q << endl;
cout << "q - p = " << q - p << endl;
system("pause");
return 0;
}

// The Output is
// *p = D, *q = G
// *p = C, *q = H
// q - p = 5

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