In computing, a null pointer or null reference is a value saved for indicating that the pointer or reference does not refer to a valid object. Programs routinely use null pointers to represent conditions such as the end of a list of unknown length or the failure to perform some action; this use of null pointers can be compared to nullable types and to the Nothing value in an option type. A null pointer should not be confused with an uninitialized pointer: a null pointer is guaranteed to compare unequal to any pointer that points to a valid object. However, depending on the language and implementation, an uninitialized pointer may not have any such guarantee. It might compare equal to other, valid pointers; or it might compare equal to null pointers. It might do both at different times; or the comparison might be undefined behaviour. (Wikipedia).
[c][explained] Demystifying Pointers — Function Pointers
Find the complete program on https://www.notion.so/theteachr/Function-Pointers-9848de630cae47a7ad1ca5552d23a66d.
From playlist Demystifying Pointers
C Programming Tutorial - 57: Null Pointer
In this tutorial we'll understand what null pointer is in C Programming and why we should use it.
From playlist The Bad Tutorials: C Programming
Null space of a matrix example
In today's lecture I work through an example to show you a well-known pitfall when it comes to the null space of a matrix. In the example I show you how to create the special cases and how to use them to represent the null space. There is also a quick look at the NullSpace function in Ma
From playlist Introducing linear algebra
Null Space: Is a Vector in a Null Space? Find a Basis for a Null Space
This video explains how to determine if a vector is in a null space and how to find a basis for a null space.
From playlist Column and Null Space
In this video I start to discuss the idea of the null space of a matrix. In these situations, the right-hand side of all the equations in the linear system is equal to zero. There is the trivial solution, where all the elements of the solution is zero. We are more interested in the spec
From playlist Introducing linear algebra
Pointers in C / C++ [Full Course]
Pointers in C and C++ are often challenging to understand. In this course, they will be demystified, allowing you to use pointers more effectively in your code. The concepts you learn in this course apply to both C and C++. ✏️ Course developed by Harsha and Animesh from MyCodeSchool. 🔗 R
From playlist C / C++
Pointers In C Explained | What Are Pointers in C? | C Pointers | C Language Tutorial | Simplilearn
This video by Simplilearn will explain to you about Pointers In C. This C Programming tutorial will explain to you What Are Pointers in C with an example. how to declare and initialize pointers In C. C pointer to an array, C Pointer to function, and pointer to pointer The video will cover
From playlist C++ Tutorial Videos
Null points and null lines | Universal Hyperbolic Geometry 12 | NJ Wildberger
Null points and null lines are central in universal hyperbolic geometry. By definition a null point is just a point which lies on its dual line, and dually a null line is just a line which passes through its dual point. We extend the rational parametrization of the unit circle to the proj
From playlist Universal Hyperbolic Geometry
From playlist CS50 Sections 2012
C: Pointer arithmetic and the call stack
In this video I show examples of pointer arithmetic. In particular, C strings (which are just arrays of chars). I also briefly go over the C call stack and show an example of a function being called.
From playlist C Programming
C Programming: Loading large text files into memory
Learn how to load large text file into memory using dynamically-sized arrays. We'll be using fopen, fgets, malloc, and realloc.
From playlist C Programming
From playlist CS50 Sections 2012
Top 20 Software Development Interview Questions 2023 | Software Engineer interview | Simplilearn
This video by Simplilearn will explain to you on Top 20 Software Development Interview Questions 2023. The Software Engineer interview Tutorial will explain to you the data structure interview questions. These top 20 Software Development based interview questions are asked most frequently
From playlist Data Structures & Algorithms [2022 Updated]
Singly-Linked Lists - CS50 Shorts
*** This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming. *** HOW TO SUBSCRIBE http://www.youtube.com/subscription_center?add_user=cs50tv HOW TO TAKE CS50 edX: https://cs50.edx.org/ Harvard Extension School: ht
From playlist CS50 Shorts
Software Development Course Day - 1 | Data Structures & Algorithms | Software Developer |Simplilearn
🔥Explore our FREE Courses with Completion Certificates: https://www.simplilearn.com/skillup-free-online-courses?utm_campaign=SoftDevCourseOct11&utm_medium=DescriptionFirstFold&utm_source=youtube This software development course is a series of live sessions where we will understand in-depth
From playlist Simplilearn Live
Data Structure Full Course 2023 - Part 1 | Data Structures Course Using C and C++ | Simplilearn
🔥 Post Graduate Program In Full Stack Web Development: https://www.simplilearn.com/pgp-full-stack-web-development-certification-training-course?utm_campaign=4April2023DataStructureFullCourse2023&utm_medium=DescriptionFF&utm_source=youtube 🔥 Caltech Coding Bootcamp (US Only): https:/
From playlist Data Structures & Algorithms [2022 Updated]
🔥Data Structures and Algorithms Tutorial in C & C++ | Data Structures Full Course 2022 | Simplilearn
🔥Post Graduate Program In Full Stack Web Development: https://www.simplilearn.com/pgp-full-stack-web-development-certification-training-course?utm_campaign=DataStructuresFCMarch15-StCb0H84T6A&utm_medium=DescriptionFirstFold&utm_source=youtube 🔥Caltech Coding Bootcamp (US Only): https://ww
From playlist Simplilearn Live
What is a Null Set | Is Null Set a Subset of Every Set? | Don't Memorise
What is a Null Set? Is it a subset of every set? To learn more about Sets, enroll in our full course now: https://infinitylearn.com/microcourses?utm_source=youtube&utm_medium=Soical&utm_campaign=DM&utm_content=BhFgcf0VSYc&utm_term=%7Bkeyword%7D In this video, we will learn: 0:00 what i
From playlist Middle School Math - Sets