C: BASIC STRUCTURE OF A C PROGRAM - SPARSH BLOG

 Basic Structure of a C Program - Sparsh Blog

• #include<stdio.h>

      👉      It is also called the Preprocessing Command.

      👉      It tells compiler that we want stdio.h file in our Program. 

• int main()

      👉     This is a function.

      👉    Our main program starts after this line.

      👉    int 🠊 It is a integer that returns the function.

• Printf()

       👉   This function is used to print the desired output.

• return 0

       👉   Returns the integer to the operating system.

• scanf()

      👉    Help to enter the value from the user.

• &

      👉   This is used to represent the address of the operator.

• \n

      👉   This is a command that used to enter for te new line character.

To make a C program executable compilation takes the following steps:-

• Preprocessing

            Remove comments, Expand Macros, Resolve  #include statements.

• Compilation

            Converts .i file into Assembly Level Language.

            .i  files are preprocessed output.

• Assembly

            Converts  .s file into machine level instructions.

            .s  files are assembly level instructions.

• Linking

            It is two types-

•                 Static Linking
•                 Dynamic Linking

                                   .dll files are Dynamic Linking

• Loading

            Program is loaded in the Ram for Execution.

A Basic HELLO WORLD! program in C language is:-

#include<stdio.h>

void  main()

{

           printf("Hello World!");

}

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