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Pointer Arithmetics in C with Examples

Last Updated: 22 August 2023

Pointer Arithmetic is the set of valid arithmetic operations that can be performed on pointers. The pointer variables store the memory address of another variable. It does...read more

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Features and Use of Pointers in C/C++

Last Updated: 23 June 2023

Pointers store the address of variables or a memory location.Syntax:datatype *var_name; Example: pointer "ptr" holds the address of an integer variable or holds the addres...read more

C-Pointer Basics

C program to sort an array using pointers

Last Updated: 26 October 2022

Given an array of size n, the task is to sort this array using pointers in C. Examples:Input: n = 5, arr[] = {0, 23, 14, 12, 9}Output: {0, 9, 12, 14, 23}Input: n = 3, arr[...read more

C Array Programs

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How to return multiple values from a function in C or C++?

Last Updated: 15 June 2022

New programmers are usually in the search of ways to return multiple values from a function. Unfortunately, C and C++ do not allow this directly. But fortunately, with a l ...read more

C-Structure & Union

Passing Reference to a Pointer in C++

Last Updated: 09 December 2021

Prerequisite: Pointers vs References in C++.For clear understanding, let's compare the usage of a "pointer to pointer" VS "Reference to pointer" in some cases. Note: It is ...read more

cpp-double-pointer

How to find Segmentation Error in C & C++ ? (Using GDB)

Last Updated: 03 September 2018

What is Segmentation Error ?- It is the runtime error caused because of the memory access violation. For Eg :-Stackoverflow, read violation etc..We often face this problem ...read more

Segmentation Fault (SIGSEGV) vs Bus Error (SIGBUS)

Last Updated: 16 December 2021

Segmentation fault(SIGSEGV) and Bus error(SIGBUS) are signals generated when serious program error is detected by the operating system and there is no way the program coul ...read more

system-programming

Pointer to an Array | Array Pointer

Last Updated: 15 September 2023

Prerequisite: Pointers IntroductionPointer to ArrayConsider the following program:[tabby title="C++"][sourcecode language="cpp"]#include iostreamusing namespace std;int ma...read more

C - Pointer to Pointer (Double Pointer)

Last Updated: 26 April 2023

Prerequisite: Pointers in CThe pointer to a pointer in C is used when we want to store the address of another pointer. The first pointer is used to store the address of th...read more

Last Updated: 31 July 2023

Pointers are one of the core components of the C programming language. A pointer can be used to store the memory address of other variables, functions, or even other point...read more

Dangling, Void , Null and Wild Pointers

Last Updated: 23 June 2023

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

School Programming

NULL Pointer in C

Last Updated: 10 April 2023

The Null Pointer is the pointer that does not point to any location but NULL. According to C11 standard:“An integer constant expression with the value 0, or such an expres ...read more

Function Pointer in C

Last Updated: 13 July 2023

In C, like normal data pointers (int *, char *, etc), we can have pointers to functions. Following is a simple example that shows declaration and function call using funct ...read more

Generic Linked List in C

Last Updated: 28 April 2023

Introduction:A reference book is a type of non-fictional book that provides detailed information on a specific subject or topic. It typically contains facts, figures, and ...read more

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void pointer in C / C++

Last Updated: 11 June 2023

A void pointer is a pointer that has no associated data type with it. A void pointer can hold an address of any type and can be typecasted to any type.Example of Void Poin ...read more