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Pointers

33 posts

How to Declare a Pointer to a Union in C?

Last Updated: 23 July 2025

Union is a user-defined data type in C language that can contain elements of the different data types and pointers are used to store memory addresses. In this article, we ...read more

void Pointer in C++

Last Updated: 18 June 2026

A void pointer (void*) is a special type of pointer that can store the address of any data type. Since it is not associated with a specific type, it is also known as a gen...read more

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Derived Data Types in C

Last Updated: 23 July 2025

Data types in the C language can be categorized into three types, namely primitive, user-defined, and derived data types. In this article, we shall learn about derived dat...read more

Right rotate given Array K times using Pointers

Last Updated: 23 July 2025

Given an array arr[] of size N and an integer K, the task is to right rotate the array K times.Examples:Input: arr[] = {1, 3, 5, 7, 9}, K = 2Output: 7 9 1 3 5Explanation: ...read more

Data type of a Pointer in C++

Last Updated: 23 July 2025

A pointer is a variable that stores the memory address of an object. The pointer then simply “points” to the object. The type of the object must correspond with the type o...read more

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Difference between Dangling pointer and Void pointer

Last Updated: 23 July 2025

Dangling pointer: A pointer pointing to a memory location that has been deleted (or freed) is called a dangling pointer. There are three different ways where Pointer acts ...read more

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Lambda Expressions vs Function Pointers

Last Updated: 06 August 2025

Function Pointer: A function pointer, or a subroutine pointer, or a procedure pointer, is a pointer that points to a function. In simple words, it is a pointer to the loca...read more

How to return local variables from a function in C++

Last Updated: 23 July 2025

In C++, returning a local variable from a function may result in an error due to the deallocation of variable memory after some value is returned from the function. But th...read more

Find triplet sum closest to X in a sorted Doubly Linked List (DLL)

Last Updated: 23 July 2025

Given a sorted doubly linked list of N nodes and an integer X, the task is to find the sum of three nodes in the list which is closest to X.Examples:Input: DLL: -8 ? 2 ? 3...read more

Returning a function pointer from a function in C/C++

Last Updated: 23 July 2025

In C/ C++, like normal data pointers(int *, char *, etc), there can be pointers to functions. Every function created in a program gets an address in memory since pointers ...read more

Architecture of 8085 microprocessor

Last Updated: 15 July 2025

A microprocessor is fabricated on a single integrated circuit (IC) or chip that is used as a central processing unit (CPU).The 8085 microprocessor is an 8-bit microprocess...read more

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Find quadruplets with given sum in a Doubly Linked List

Last Updated: 23 July 2025

Given a sorted doubly linked list and an integer X, the task is to print all the quadruplets in the doubly linked list whose sum is X.Examples:Input: LL: -3 ? 1 ? 2 ? 3 ? ...read more

doubly linked list

Creating array of pointers in C++

Last Updated: 23 July 2025

An array of pointers is an array of pointer variables. It is also known as pointer arrays. We will discuss how to create a 1D and 2D array of pointers dynamically. The wor...read more

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Base Class Pointer Pointing to Derived Class Object in C++

Last Updated: 23 July 2025

Prerequisite: Pointers in C++A pointer is a data type that stores the address of other data types. Pointers can be used for base objects as well as objects of derived clas...read more

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Technical Scripter

C++-Class and Object

Difference between passing pointer to pointer and address of pointer to any function

Last Updated: 23 July 2025

In this article, the differences between passing “pointer to pointer” and “address of pointer” to a function. In C or C++ Programming Language, it is known that pointers h...read more

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