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Pointers

33 posts

Architecture of 8085 microprocessor

Last Updated: 24 March 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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Computer Organization & Architecture

QA - Placement Quizzes-Data Interpretation

Java-SecureRandom

TCS-coding-questions

R Graphics-Functions

Python numpy-Random

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

Last Updated: 01 November 2022

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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Difference Between

memory-management

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

Last Updated: 20 March 2023

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

Creating array of pointers in C++

Last Updated: 23 June 2022

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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Find quadruplets with given sum in a Doubly Linked List

Last Updated: 30 November 2021

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

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

Last Updated: 11 March 2023

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

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

Last Updated: 09 March 2022

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

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

Last Updated: 05 June 2023

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

Lambda Expressions vs Function Pointers

Last Updated: 01 October 2021

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

Difference between Dangling pointer and Void pointer

Last Updated: 13 July 2021

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

Difference Between

Data type of a Pointer in C++

Last Updated: 05 January 2022

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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Right rotate given Array K times using Pointers

Last Updated: 19 January 2022

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

Derived Data Types in C

Last Updated: 06 September 2023

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

void Pointer in C++

Last Updated: 17 January 2024

In C++, a void pointer is a pointer that is declared using the 'void' keyword (void*). It is different from regular pointers it is used to point to data of no specified da...read more

Geeks Premier League

Geeks Premier League 2023

How to Declare a Pointer to a Union in C?

Last Updated: 14 February 2024

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