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

What is Call by Value and Call by Reference in C Programming 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 programming language. The topic we will cover today is the functions and the use of call by value and call by reference in C programming. This is a very important topic for functions. As we all know when we use functions we can pass values to functions from within the main program, the point where we call a function. There are two ways to pass data to functions in C language i.e.: Call by value and Call by reference . What is Call by value in C programming In Call by value, we pass the values of parameters or arguments that are used inside the main program. We only send variables' values to the function parameters. As shown in the above coding example, we cannot modify or change the values of parameters that are used inside the main program. In the...

  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 a C program...

  Nested Loops in C Programming Language In programming languages, we have control statements or looping statements which are the following, 1) while-loop 2) do-while loop 3) for loop we have seen loop implementation one at a time i.e., one loop type implemented in the program. Now we will look at how to use the nested loops in the C programming language. The first thing to keep in mind is what we mean by the term nested loop. The main idea behind nested loops is to place a loop inside another loop. In this article, we are going to look at nested for loops in the C programming language. As we previously discussed we can use a loop inside another loop. So today we are going to look at how we can use a for loop inside another for loop .  Remember that if we have two for loops one for loop inside another for loop, and if both the loops are set to three iterations, then for each iteration of the outer loop the inner loop will execute three times i.e. if the outer loop runs ...