The keyword “void” is a data type that literally represents no data at all. The most obvious use of this is a function that returns nothing:
void PrintHello() 
{ 
	printf("Hello"); 
	return;		// the function does "return", but no value is returned 
} 
Here a function is declared, and all 

The differences between macros and functions can be explained as follows:MacrosFunctionsIt is preprocessed rather than compiled.It is compiled not preprocessed.It is preprocessed rather than compiled.Function checks for compilation errors.Code length is increased.Code length remains the same.Macros 

To call a function before the main(), pragma startup directive should be used. E.g.-#pragma startup fun
void fun()
{
printf("In fun\n");
}
main()
{
printf("In main\n");
}The output of the above program will beIn funIn mainThis pragma directive, on the other hand, is compiler-dependent. This 

The individual elements of a program are called Tokens. There are following 6 types of tokens are available in C:IdentifiersKeywordsConstantsOperatorsSpecial CharactersStrings

Some features of the C language are- It is Simple And Efficient. C language is portable or Machine Independent.C is a mid-level Programming Language. It is a structured Programming Language.It has a function-rich library. Dynamic Memory Management.C is super fast.We can use point

If we try to assign a variable with an incorrect value of datatype, then the compiler will (most probably) generate an error- the compile-time error. Or else, the compiler will convert this value automatically into the intended datatype of the available variable.Example,#includeint main() {// assign

The variable definition in C language tells the compiler about how much storage it should be creating for the given variable and where it should create the storage. Basically, the variable definition helps in specifying the data type. It contains a list of one variable or multiple ones as follows:ty

Declaring a variable provides the compiler with an assurance that there is a variable that exists with that very given name. This way, the compiler will get a signal to proceed with the further compilation without needing the complete details regarding that variable.The declaration of variables is u

The variables can be of the following basic types, based on the name and the type of the variableGlobal Variable: A variable that gets declared outside a block or a function is known as a global variable. Any function in a program is capable of changing the value of a global variable. It means that 

Here are the rules that we must follow when naming it:1. The name of the variable must not begin with a digit.2. A variable name can consist of digits, alphabets, and even special symbols such as an underscore ( _ ).3. A variable name must not have any keywords, for instance, float, int, etc.4. Ther

When you are using Recursion in C programming, you have to face some issues. Following are the disadvantage of using recursion in C Programming.Any recursive program is generally much slower than any non-recursive program. It is because the recursive programs have to make the function calls. Thus, i

The recursion process in C refers to the process in which the program repeats a certain section of code in a similar way. In C Programming if a function calls itself from inside the same function is called recursion. The function which calls itself is called a recursive function and the function cal