Many times I have found that people make mistakes when they are using signed and unsigned integers. Sometimes the basic mistake can create hidden issues and waist you’re a lot of time searching for the bugs. I know, everybody is aware of the signed and unsigned integer but still, they are making mistakes that’s why […]
Closer look at signed and unsigned integers in C (signed vs unsigned) Read More »
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
What is importance of struct hack in c? Read More »
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
What is flexible array member in C? Read More »
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
How to implement finite state machine in C Read More »
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
Array in C/C++ Language Read More »
A multi-dimensional array is very useful in C language. We can replace nested switch case with a multidimensional array using the pointer to function. Using this technique, a function that has a hundred lines of code reduced dramatically. Previously I have worked on a POS (point of sale) application, in this application we have used
Replacing nested switches with the multi-dimensional array Read More »
Using the switch case in C language, we can resolve complex conditional and branching operations. It reduces the comparison of integral value in a long if-else statement. The switch expression transfers the control to a specific part of the code which has written in the body of switch and case statements. The control transfer capability
switch case in C/C++, A Brief Explanation Read More »
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
How to find sizeof array in C/C++ without using sizeof? Read More »
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
How to find the size of structure in C without using sizeof? Read More »
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
Pointer arithmetic in C programming Read More »