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Features of C++ 20

Last Updated: 02 November 2023

C++ has a tradition of introducing new improvements and features in every 3 years in the form of a standard. With the last standard having released in 2017 as C++ 17, C++2...read more

Programming Language

lvalues references and rvalues references in C++ with Examples

Last Updated: 02 September 2021

Prerequisites: lvalue and rvalue in C++, References in C++“l-value” refers to a memory location that identifies an object. "r-value” refers to the data value that is store ...read more

Why do we need reference variables if we have pointers

Last Updated: 01 December 2021

Pointers: A pointer is a variable that holds memory address of another variable. A pointer needs to be de referenced with * operator to access the memory location it point ...read more

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Similar Topics

C++

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How to add reference of an object in Container Classes

Last Updated: 12 June 2020

We all are familiar with an alias in C++. An alias means another name for some entity. So, a reference variable is an alias that is another name for an existing variable/o ...read more

C++-Class and Object

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

C++ | References | Question 6

Last Updated: 28 June 2021

Output of following C++ program?[sourcecode language="CPP"]#includeiostreamusing namespace std;int main(){ int x = 10; int ref = x; ref = 20; cout x = x endl ; x ...read more

C++ | References | Question 4

Last Updated: 28 June 2021

Predict the output of following C++ program.[sourcecode language="C"]#includeiostreamusing namespace std;int fun(){ static int x = 10; return x;}int main(){ fun() ...read more

C++ | References | Question 6

Last Updated: 28 June 2021

Which of the following functions must use reference.(A) Assignment operator function(B) Copy Constructor(C) Destructor(D) Parameterized constructor Answer: (B) Explanation ...read more

C++ | References | Question 6

Last Updated: 28 June 2021

Which of the following is FALSE about references in C++(A) References cannot be NULL(B) A reference must be initialized when declared(C) Once a reference is created, it c ...read more

C++ | References | Question 1

Last Updated: 28 June 2021

What is the return value of f(p, p) if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second paramet ...read more