Information And Technology (FahadTheITGuy), Programming Languages, Web development

What is Call by Value and Call by Reference in C Programming In todays blog post we are going to cover a very important concept that is call by value and call by reference. In C programming language there are two primary ways to pass arguments to a function, the first one is call by value and the second one is call by reference. 1) Call by value 2) Call by reference Now we will have a brief look at how these two primary ways of function calling works in C programming language. In call by value method we simply pass the value that is contained by the variable and in call by reference we simply pass the memory address of variable instead of its value. Just remember one thing at this point, the function parameter must be declared as a pointer(*) so that it can hold the address of variable or argument passed during function call. We use functions in programming languages like C, C++, C#, etc. Today we will cover some important concepts about functions that are implemented in C program...

  Functions in C Programming Language In programming languages, there is a concept of functions that we use to implement some functionality in our code. Functions help us reuse the code and enhance its performance, as they are written once and tested again and again.  In C  programming we can use functions to break the code into smaller pieces that are easily maintainable. A function is a piece of code that is enclosed in curly brackets, and a function only runs and executes when it is called within a main program in C programming language. We can also pass data from our main program or function to any user-defined function . As we already discussed, the main advantage or benefit of functions is reusability . In functions, we can define the code once, and after that, we can use the function code many times, which enhances the reusability of the code.  We can also refer to functions as procedures or sub-routines in some programming languages. Basically when we run...

  Nested Loops in C Programming Language In the previous blog posts we have studied about the loops, and different types of loops in C programming language. We know that loops are used to iterate or repeat a piece of code as per the requirement of our programming logic. And one of the main advantages of using these looping statements is that it increases code reusability and also enhances the performance of the program or code. Tody we are going to cover the nested loops in C programming language. We are going to look at that how can we nest a loop inside another loop. Now just keep one thing in mind that we can nest any loop inside any other looping statement . In other words we can say that we can place one loop statement inside the body of another loop statement. Now there is another very important point which is, when we use nested loops the inner loop completes all of its iterations for every single iteration of the outer loop . If outer loop runs M times and inner loop wil...

  for loop in C programming language for beginners Today in this blog post we are going to cover the for loop which is an entry controlled flow statement. These looping statements are used to iterate or repeat the piece of code several times according to the requirement of our C programming logic. It is preferred to use the for loop if we already know that how many times we want specific code to be executed. But if there is a scenario where it is not clear that how many times this loop should run then we use do loop or do while loop in C programming language. The for loop uses a variable which decides that how many times a specific piece of code should be iterated or repeated. The main advantage of these looping statements is that it reuses the code, and also enhances the speed and performance  of the code. In programming languages, we have control statements that are used to control the behavior of the programs as per user requirements. One of these control statements is for ...

  while loop in the C programming language In computer programming languages the concept of loops are one of the most core components that the programmers and developers use in order to iterate or repeat some piece of code. It will not only increase the reusability of code but also enhances the performance of our code. The looping statement that we will cover today in this blog post is while loop in C programming language. The while loop is also referred to as entry controlled loop that repeats and and executes a piece of code as long as the specified condition is true. We use while loop when we are not sure that how many times a specific piece of code should be iterated. Now before going deep into while loop in C programming language let us look at the basic syntax and working of while loop in C program. In computer programming languages there is a concept of control flow statements. In control flow statements we specify some conditions, and based on those conditions whether th...

  How do-while loop works in C programming language? Loops are an essential part of any programming language. These looping statements are basically control structures that helps the users to execute the block of code. The looping statement that we are going to look at today is do while loop in C programming language.There is a key characteristic of do while loop is that, when we use the do while loop in our C programming or any other programming it will run atleast once no matter if the specific condition is true or false. In both the cases it will atleast once, without even checking the condition. We use control statements in programming languages to execute code based on certain conditions. In C programming the concept of control statement is the same. These control statements iterate pieces of code multiple times according to user requirements. These iterations are controlled by some conditions that are given by the programmer or the developer. There are mainly three types of...

  Switch statement in C programming language In todays blog post we will look at the use of control statements in C Programming language. These control statements basically execute one block of code from multiple options or conditions depending on the value of single expression. And the control statement that we are going to discuss today is switch statement . And it can be used as an alternate to if else if ladder statement . It is not just an alternate to the if else if ladder but it is considered as more clean, readable, and more efficient alternate as compared to if else if ladder statement . The switch statement is a conditional statement that we use to run different code sections based on some conditions. The switch statement also works like the if else-if else ladder statement. As we know in the else-if ladder statement we implement multiple conditions, it is exactly how the switch statement works. In the switch statement, we used the term case: that tells us about any sp...