1. Programming 2: Structures »
  2. Dynamic memory management »
  3. Pointers »
  4. (Q) Pointer prints

(Q) Pointer printsΒΆ

Goal: I will learn how use pointers in C++.

Instructions: Consider the example codes below and check the true claims.

Consider the code below:

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int x = 3;
int* ptr = &x;
cout << ptr << endl;
cout << *ptr << endl;

Check the true claims based on the code above.

Consider the code below:

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int x;
int* ptr = &x;
x = 4;
cout << ptr << endl;
cout << *ptr << endl;

Check the true claims based on the code above.

Consider the code below:

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int x;
int* ptr = &x;
*ptr = 4;
cout << ptr << endl;
cout << *ptr << endl;

Check the true claims based on the code above.

Consider the code below:

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int x;
int* ptr = 4;
cout << ptr << endl;
cout << *ptr << endl;

Check the true claims based on the code above.

Consider the code below:

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int x;
int* ptr = &x;
x = 5;
cout << ptr << endl;
cout << *ptr << endl;
cout << x << endl;
cout << &x << endl;

Check the true claims based on the code above.