This is the Series on Linux Device Driver. The aim of this series is to provide the easy and practical examples that anyone can understand. This is the Linux Device Driver Tutorial Part 22 – Mutex in Linux Kernel. Prerequisites In the example section, I had used Kthread to explain Mutex. If you don’t know what […]
The Linux kernel contains a very useful macro named “container_of”. This article is about Understanding of container_of macro in Linux kernel. This article includes a simple program that illustrates how this macro is used, and explains why it is so useful. Understanding of container_of macro in Linux kernel Introduction Now we will assume that we have […]
In this tutorial we are going to see the full story of Little Endian And Big Endian. Normally, Big endian and little endian are two formats to store multibyte data types into computer’s memory. Before that we should know what is Endian. What is Endianness? The endianness refers to the byte order used by your computer or micro controller or […]
Number Complement in C – Interview Question Question A complement of a number is defined as the bit-wise inversion: starting from the highest-order 1-bit, change every 1 to 0 and every 0 to 1. For example, if N = 5, N is represented as 101 in binary. The binary complement of N is 010, which […]
If you are a fresher to the Embedded, Obviously you have been asked this question. What are the stages of compilation process and Memory Layout of the program. So in this tutorial we are going to discuss Compilation Steps and Memory Layout of the C Program. Compilation Steps and Memory Layout of the C Program […]
C language has lots of advantages. In this tutorial we are going to see Stringizing and Token Pasting Operators in C programming. Most of them don’t aware of this topic. Let’s start. Before that we should know what is token in C Programming. Stringizing and Token Pasting Operators in C programming Tokens in C Every C program […]
In our previous tutorials, we have seen the What are the pointers and its function. In this tutorial, we are going to see Different types of pointers in c. Prerequisites Before start our topic, i would recommend you to read these topics. Pointers – Part 1 Pointers – Part 2 Different Types of Pointers in […]
This is the important topic for interview in embedded domain. In this tutorial we will see Bitwise Operators in C Interview Questions . Bit wise Operators Operators Meaning of operators & Bitwise AND | Bitwise OR ^ Bitwise XOR ~ Bitwise complement << Shift left >> Shift right Bitwise AND operator (&) The output of bitwise […]
Many C and C++ programming beginners tend to confuse between the concept of macros and Inline functions. Often the difference between the two is also asked in C interviews. The Concept of C Macros Macros are generally used to define constant values that are being used repeatedly in program. Macros can even accept arguments and such […]
Hi all…. This is our next tutorial. Today we are going to see Typecasting in C language… Let’s begin… Introduction Type casting is a way to convert a variable from one data type to another data type. For example, if you want to store a long value into a simple integer then you can type […]
Hi guys here we will discuss about the Advanced concepts of Pointers. If you weren’t read the Basic pointer concepts please visit Here. Now, we will try to develop understanding of some of the relatively complex concepts. The following are explained in this article with examples: Constant pointer and pointer to constant. Pointer to pointer […]
Hi all…. In this tutorial we are going to see pointers in C. This is very big concept. So I have split this into two parts. Click Here for Part 2 Let’s start. Introduction The concept of pointers is one of the most powerful fundamentals of C/C++ language. Through pointers a developer can directly access […]
Hi friends…… Today we are going to see Qualifier (Const and Volatile). This is the very important topic in c and embedded domain. In an interview this would be the first question in C language. What is the volatile keyword? Why we are use Volatile? What is the difference between const and volatile? What is […]
If you haven’t Read Enum or Enumeration Click Here to read. If you haven’t Read Storage Class in C Click Here to read . Typedef Although typedef is thought of as being a storage class, it isn’t really. It allows you to introduce synonyms for types which could have been declared some other way.
Today we will discuss enumeration in C Language Tutorial…Let’s start. Enumeration in C Language Tutorial Introduction Enumerated Types are a special way of creating your own Type in C. The type is a “list of key words”. Enumerated types are used to make a program clearer to the reader/maintainer of the program. For example, say […]
Today we will Discuss Storage Class in C Language. Storage Class in C Language Tutorial SCOPE AND STORAGE CLASSES Before moving ahead, lets quickly understand the difference between life time and scope of a variable. Scope of variable In which function the value of the variable would be available. Life of the variable How long the […]
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