Previously when C99 had not introduced flexible array people used the technique of struct hack to create a flexible length member. The struct hack technique gives permission to the user to create a variable length member in the structure. In the struct hack techniques, we need to create an array whose length is 0 (some […]

flexible array member introduced in C99. This feature enables the user to create an empty array in a structure. The size of the empty array can be changed at runtime as per the user requirements. But this empty array must be declared as the last member of the structure and the structure must contain at

Nowadays many applications either small or complex use the finite state machine (FSM). A finite state machine in C is one of the popular design patterns for the embedded system. A finite state machine makes the development easy and smooth. There are a lot of devices which use event base states, like coffee machine, vending

In this blog post, you will learn the arrays and their working. You will learn how to declare, initialize and access elements of an array with the help of some programming examples. Also some important points related to the array that should you know. I will start from the beginner and explain each topic very

A pointer is an amazing tool of c language we can do any task easily with the help of pointers. In my previous article, we have read that how to calculate the size of structure without using the sizeof() operator. In this article, I am calculating the sizeof array without using the sizeof() operator. Calculating

In C language, sizeof() operator is used to calculate the size of structure, variables, pointers or data types, data types could be pre-defined or user-defined. Using the sizeof() operator we can calculate the size of the structure straightforward to pass it as a parameter.  But here I am interested in calculating the size of structure

Sometimes we need to perform arithmetic operations on pointers. But before using arithmetic operators with pointers we need to understand that we can not use each arithmetic operators with pointers. Pointer arithmetic is slightly different from arithmetic we normally use in our daily life.   We also need to remember that we cannot use the

Pointers are a very important feature of the C/C++ programming language. You can not imagine C language without the pointers and you could not be a great C programmer without a good knowledge of the C pointers. In this blog post, you will learn about the pointers in C/C++; what are pointers, what are types