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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

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static_cast in C++

Last updated: 13 July 2023

A Cast operator is a unary operator which forces one data type to be converted into another data type.C++ supports 4 types of casting:Static CastDynamic CastConst CastRein ...read more

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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

Last updated: 25 October 2022

Pointers are symbolic representations of addresses. They enable programs to simulate call-by-reference as well as to create and manipulate dynamic data structures. Iterati...read more

new and delete Operators in C++ For Dynamic Memory

Last updated: 18 October 2022

Dynamic memory allocation in C/C++ refers to performing memory allocation manually by a programmer. Dynamically allocated memory is allocated on Heap, and non-static and l...read more

School Programming

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

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Functors in C++

Last updated: 27 January 2023

Please note that the title is Functors (Not Functions)!!Consider a function that takes only one argument. However, while calling this function we have a lot more informati ...read more

How Arrays are Passed to Functions in C/C++?

Last updated: 11 July 2023

A whole array cannot be passed as an argument to a function in C++. You can, however, pass a pointer to an array without an index by specifying the array's name.In C, when...read more

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CBSE - Class 11

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

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

Smart Pointers in C++

Last updated: 14 September 2023

Prerequisite: Pointers in C++Pointers are used for accessing the resources which are external to the program - like heap memory. So, for accessing the heap memory (if anyt...read more

How to pass a 2D array as a parameter in C?

Last updated: 24 June 2021

This post is an extension of How to dynamically allocate a 2D array in C?A one dimensional array can be easily passed as a pointer, but syntax for passing a 2D array to a ...read more

cpp-parameter-passing

C Array and String

How to dynamically allocate a 2D array in C?

Last updated: 20 February 2023

Following are different ways to create a 2D array on the heap (or dynamically allocate a 2D array).In the following examples, we have considered 'r' as number of rows, 'c' ...read more

C Array and String

'this' pointer in C++

Last updated: 09 August 2019

To understand 'this' pointer, it is important to know how objects look at functions and data members of a class. Each object gets its own copy of the data member. Al ...read more

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