C++-new and delete

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How to declare a 2D array dynamically in C++ using new operator

Last Updated: 14 September 2022

Prerequisite: Array BasicsIn C/C++, multidimensional arrays in simple words as an array of arrays. Data in multidimensional arrays are store ...read more

Arrays

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C++-new and delete

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DSA

Difference between int* p() and int (*p)()?

Last Updated: 11 December 2020

A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or co ...read more

If memory allocation using new is failed in C++ then how it should be handled?

Last Updated: 20 July 2021

In this article, if memory allocation using new is failed in C++ then how it should be handled? When an object of a class is created dynamic ...read more

memory-management

C++

C-Dynamic Memory Allocation

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What happens if we mix new and free in C++?

Last Updated: 22 October 2020

As we know that new is used to create memory dynamically and it is the programmer's responsibility to delete the memory location explicitly ...read more

C++

C-Dynamic Memory Allocation

Dynamic Memory Allocation

C++-new and delete

new and delete

C++ Programs

new vs malloc() and free() vs delete in C++

Last Updated: 01 November 2023

We use new and delete operators in C++ to dynamically allocate memory whereas malloc() and free() functions are also used for the same purpo ...read more

C++

Constructors

Dynamic Memory Allocation

C++-new and delete

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Why overriding both the global new operator and the class-specific operator is not ambiguous?

Last Updated: 01 November 2023

The below section deals about overload resolution as it helps in the fundamentals of overloading and overriding.Predict the output:[tabby ti ...read more

C++

C++-new and delete

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Where is an object stored if it is created inside a block in C++?

Last Updated: 31 August 2022

There are two parts of memory in which an object can be stored:stack - Memory from the stack is used by all the members which are declared i ...read more

C++ | new and delete | Question 5

Last Updated: 28 June 2021

Is it fine to call delete twice for a pointer?[sourcecode language="CPP"]#includeiostreamusing namespace std;int main(){ int *ptr = new i ...read more

C++ | new and delete | Question 4

Last Updated: 28 June 2021

What happens when delete is used for a NULL pointer?[sourcecode language="C"] int *ptr = NULL; delete ptr; [/sourcecode](A) Compiler Error(B ...read more

C++ | new and delete | Question 3

Last Updated: 28 June 2021

Predict the output?[sourcecode language="CPP"]#include iostreamusing namespace std;class Test { int x; Test() { x = 5;}};int main(){ Tes ...read more

C++ | new and delete | Question 2

Last Updated: 28 June 2021

Which of the following is true about new when compared with malloc.1) new is an operator, malloc is a function2) new calls constructor, mall ...read more

C++ | new and delete | Question 1

Last Updated: 29 July 2020

How to create a dynamic array of pointers (to integers) of size 10 using new in C++? Hint: We can create a non-dynamic array using int *arr ...read more

C++ Quiz

C++-new and delete

new and delete