C++ Null Pointer1 min read

We use a null pointer when we do not have the exact address to assign to a pointer. It is considered a good practice and null is assigned at the time of declaration. Therefore the pointer with a null value is called a null pointer.

Check the C++ example for the null pointer.

Output:

The value of null pointer is 0 as provided in many of the standard library.


We can also check the pointer for null before accessing it. By doing so we can perform error handling. We can do it in a following way.


MORE

Find the output ab, cd, ef, g for the input a,b,c,d,e,f,g in Javascript and Python

In this tutorial, we will write a program to find a pairs of elements from an array such that for the input [a,b,c,d,e,f,g] we will …
Read More

String Pattern Programs in C

In this tutorial, we will write various C pattern programs for String. Before that, you may go through the following topics in C. for loop …
Read More

Java Program to Find pair of Integers in Array whose sum is given Number

In this tutorial, we will write a program to find a pair of elements from an array whose sum equals a given number in java …
Read More

Program to Print Diamond Alphabet Patterns in C

In this tutorial, we will learn to write a C program to print Diamond patterns using alphabets/characters. However, in this tutorial, we will create a …
Read More

Half Diamond Pattern in C using Alphabets

In this tutorial, we will learn and code the half diamond alphabet patterns in C programming language. However, in this tutorial, we will create a …
Read More

Half Pyramid of Alphabets in C

In this tutorial, we will learn and code alphabet patterns in C programming language specifically the Half pyramid of alphabets in C programming. However, in …
Read More