pointer

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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

pointer

C Language

Pointers

Difference Between

Difference between constant pointer, pointers to constant, and constant pointers to constants

Last Updated: 17 October 2022

In this article, we will discuss the differences between constant pointer, pointers to constant constant pointers to constants. Pointers are the variables that hold the a...read more

What is a Pointer to a Null pointer

Last Updated: 16 June 2022

NULL pointer in C At the very high level, we can think of NULL as a null pointer which is used in C for various purposes. Some of the most common use cases for NULL areTo ...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

Passing By Pointer vs Passing By Reference in C++

Last Updated: 06 April 2023

In C++, we can pass parameters to a function either by pointers or by reference. In both cases, we get the same result. So, what is the difference between Passing by Point ...read more

pointer

cpp-parameter-passing

cpp-references

C++

Complicated declarations in C

Last Updated: 22 August 2022

Most of the times declarations are simple to read, but it is hard to read some declarations which involve pointer to functions. For example, consider the following declara ...read more

pointer

C Language

C-Variable Declaration and Scope

Const Qualifier in C

Last Updated: 07 August 2023

The qualifier const can be applied to the declaration of any variable to specify that its value will not be changed (which depends upon where const variables are stored, w ...read more

pointer

C Language

C-Storage Classes and Type Qualifiers

Are array members deeply copied?

Last Updated: 28 May 2017

In C/C++, we can assign a struct (or class in C++ only) variable to another variable of same type. When we assign a struct variable to another, all members of the variabl ...read more

pointer

C Language

C Array and String

When do we pass arguments by reference or pointer?

Last Updated: 04 January 2022

In C++, variables are passed by reference due to following reasons:1) To modify local variables of the caller function: A reference (or pointer) allows called function to ...read more

pointer

C Language

C++

Multidimensional Pointer Arithmetic in C/C++

Last Updated: 28 September 2018

In C/C++, arrays and pointers have similar semantics, except on type information.As an example, given a 3D arrayint buffer[5][7][6];An element at location [2][1][2] can be ...read more

pointer

C Language

C++

Type of 'this' Pointer in C++

Last Updated: 24 May 2022

In C++, this pointer refers to the current object of the class and passes it as a parameter to another method. 'this pointer' is passed as a hidden argument to all non-sta ...read more

Declare a C/C++ function returning pointer to array of integer pointers

Last Updated: 29 May 2017

Declare "a function with argument of int* which returns pointer to an array of 4 integer pointers". At the first glance it may look complex, we can declare the required fu ...read more

pointer

C++

What are Wild Pointers? How can we avoid?

Last Updated: 11 June 2023

Uninitialized pointers are known as wild pointers because they point to some arbitrary memory location and may cause a program to crash or behave unexpectedly.Example of W ...read more

Why Does C Treat Array Parameters as Pointers?

Last Updated: 12 April 2023

In C, array parameters are treated as pointers mainly to,To increase the efficiency of codeTo save timeIt is inefficient to copy the array data in terms of both memory and ...read more

pointer

C Language

C-Pointers

How to declare a pointer to a function?

Last Updated: 11 June 2023

While a pointer to a variable or an object is used to access them indirectly, a pointer to a function is used to invoke a function indirectly.Well, we assume that you know ...read more

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