Read the value of the original variable through the pointer. - C++ Data Type

Description

Read the value of the original variable through the pointer.

Demo Code

#include <iostream>

using namespace std;

int main()//w  ww  .j a  v  a 2 s  .c  o  m
{
  int a = 10;
  int *ptr = &a;
  int backup;
  *ptr = 200;

  backup = *ptr;
  cout << backup << endl;

  *ptr = 7000;
  cout << *ptr << endl;
  cout << backup << endl;
  return 0;
}

Result

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Related Tutorials

• Demonstrates the use of pointer declarations and operators.
• Changes the value of a pointer variable.
• Modifying the Original Variable with a Pointer Variable
• Using Pointers to Point to Something Else and Back Again
• Manipulating Data by Using Pointers