c basics

What is Constant Qualifier in C? Constant qualifier is used to declare a variable as contant. If we dont want a variable to change its value then we can use constant qualifier to make that variable to hold a value throughout the program. Constant changes behavoior of a variable making it not to be modified. … Read more

Introduction “Hello World! C Program” can be easily written in c programming language using printf function which prints characters on to terminal. For using printf first we have to include stdio header file using #include preprocessor. Then we can call printf function passing “Hello World!” to print. Before we begin our first C program, let … Read more

Scope rules in C programming refers to the accessibility or validity of a variable within a certain region of a program. Otherwise, you can say in general as it is a lifetime of a variable at a given point in a program. Types of scope in C Local scope Global scope File scope Local Scope … Read more

Literals in c are fixed values whose values cannot be changed during the execution of a program. Literal contains memory but no reference to it. There are four types of literals in C programming, they are as follows: Integer literal Float literal Character literal String literal Integer literal Integer literal represent only integer values. It … Read more

If you are searching for loops in c then you are at the right blog post. Loops in c: Programming languages provide control structure which makes the programmer to run a block of code for n number of times are until a specific condition is met. Consider example if you want to sum numbers up … Read more

What is an Array ? Arrays in c programming language is set of elements of same data type. Array is stored in continuous storage space. If you dont know about arrays then check out datatypes in c article to know basics of an array. C Arrays starts with index 0. Arrays provide random access to … Read more

What is a Function? Function is the group of statements which performs specific task. The above add() function is written to perform addition operation. What is Call by value? In Call by value actual parameters are being passed to a function by caller function. If values are being changed in the callee function while executing … Read more

C language syntax specifies rules to form statements like how to start line of code, how to end statement, where to use double quotes, etc. It specifies rules to form character sequences that will be grouped together to form tokens. Tokens are the basic building units for the C program. Tokens may be identifiers, keywords, … Read more

What are the Header Files? Header files in C language offers numerous libraries that include predefined functions to make programming easier. By using C predefined directive ‘#include’, programmers can use the functions defined in the header file. All the header files have ‘.h’ extension. The default header file that comes with the C compiler is … Read more