The void pointer within C is a pointer that is not allied with any data types. This points to some data location within the storage means points to that address of variables. It is also known as a general-purpos
return_type (*fun_pointer_name)(argument_type_list)= &function_name; Function Pointer Example Program in C Consider the example /*function pointer example in c.*/#include <stdio.h>//function: sum, will return sum of two//integer numbersintaddTwoNumbers(intx,inty) {returnx+y; }intmain(...
An Example of Null pointer in C Any pointer that contains a valid memory address can be made as aNULL pointerby assigning0. Example Here, firstlyptris initialized by the address ofnum, so it is not a NULL pointer, after that, we are assigning0to theptr, and then it will become a NU...
In this guide, we will learn how to work with Pointers and arrays in a C program. I recommend you to referArrayandPointertutorials before going though this guide so that it would be easy for you to understand the concept explained here. A simple example to print the address of array elem...
In the above example : We declared two variables var1 and var2 A constant pointer ‘ptr’ was declared and made to point var1 Next, ptr is made to point var2. Finally, we try to print the value ptr is pointing to. So, in a nutshell, we assigned an address to a constant pointer...
Example of this Pointer in Java Next → ← Prev Like/Subscribe us for latest updates About Dinesh Thakur Dinesh Thakur holds an B.C.A, MCDBA, MCSD certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer sof...
How to declare a Pointer to Pointer (Double Pointer) in C? int**pr; Here pr is a double pointer. There must be two *’s in the declaration of double pointer. Let’s understand the concept of double pointers with the help of a diagram: ...
Lets understand this through an example : char ch = 'c'; char *ptr = &ch *ptr = 'a'; In the above example, we used a character pointer ‘ptr’ that points to character ‘ch’. In the last line, we change the value at address pointer by ‘ptr’. But if this would have been...
How Do I Do It in C++? (C++11 and later) As afunction pointer type alias: usingtypeName=returnType(*)(parameterTypes); (example code) As afunction type alias: usingtypeName=returnType(parameterTypes); (example code) This site is not intended to be an exhaustive list of all possible use...
C++ Pointer Arithmetic - Learn how to use pointer arithmetic in C++, including the basics of pointers, memory addresses, and how to manipulate data in arrays.