Learn Introduction to Pointer | Pointers Fundamentals

A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory. Declaration and initialization of a pointer looks like this:

pointer.h


              1
            
int* p_Name = nullptr;

int: specifies the base type of the variable that the pointer will point to. In this case, it's an integer;
*: called dereference operator, returns the value stored at the address held by a pointer;
p_Name: the name of the pointer variable. You can choose any valid variable name;
nullptr: is a keyword that represents a null pointer, indicating that it is empty and doesn't point to anything.

Note

Commonly, pointers are named with a prefix p_ as a naming convention signifying that the variable is a pointer.

Task

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Declare and initialize pointer with a nullptr.
Display a pointer for a chosen primitive data type.
Make sure its name has p_ prefix.

Solution

solution.cpp

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Section 1. Chapter 1

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A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory. Declaration and initialization of a pointer looks like this:

pointer.h


              1
            
int* p_Name = nullptr;

int: specifies the base type of the variable that the pointer will point to. In this case, it's an integer;
*: called dereference operator, returns the value stored at the address held by a pointer;
p_Name: the name of the pointer variable. You can choose any valid variable name;
nullptr: is a keyword that represents a null pointer, indicating that it is empty and doesn't point to anything.

Note

Commonly, pointers are named with a prefix p_ as a naming convention signifying that the variable is a pointer.

Task

Swipe to start coding

Declare and initialize pointer with a nullptr.
Display a pointer for a chosen primitive data type.
Make sure its name has p_ prefix.

Solution

solution.cpp

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 1. Chapter 1

single

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A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory. Declaration and initialization of a pointer looks like this:

pointer.h


              1
            
int* p_Name = nullptr;

int: specifies the base type of the variable that the pointer will point to. In this case, it's an integer;
*: called dereference operator, returns the value stored at the address held by a pointer;
p_Name: the name of the pointer variable. You can choose any valid variable name;
nullptr: is a keyword that represents a null pointer, indicating that it is empty and doesn't point to anything.

Note

Commonly, pointers are named with a prefix p_ as a naming convention signifying that the variable is a pointer.

Task

Swipe to start coding

Declare and initialize pointer with a nullptr.
Display a pointer for a chosen primitive data type.
Make sure its name has p_ prefix.

Solution

solution.cpp

Switch to desktop for real-world practiceContinue from where you are using one of the options below

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Thanks for your feedback!

Introduction to Pointer

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Introduction to Pointer

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Introduction to Pointer

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