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Comments in C

Comments in C language are used to provide information about lines of code. It is widely used for documenting code. There are 2 types of comments in C language.

  1. Single Line Comments
  2. Multi Line Comments

Single Line Comments

Single line comments are represented by double slash \\. Let’s see an example of single line comment in C.

  1. #include <stdio.h>    
  2. #include <conio.h>  
  3. void main(){
  4. clrscr();
  5. //printing information
  6. printf(“Hello C”);
  7. getch();
  8. }

Output:

Hello C

Even you can place comment after statement. For example:

  1. printf(“Hello C”);//printing information

Mult Line Comments

Multi line comments are represented by slash asterisk \* … *\. It can occupy many lines of code but it can’t be nested. Syntax:

  1. /* 
  2. code
  3. to be commented
  4. */

Let’s see an example of multi line comment in C.

  1. #include <stdio.h>    
  2. #include <conio.h>  
  3. void main(){
  4. clrscr();
  5. /*printing
  6. information*/
  7. printf(“Hello C”);
  8. getch();
  9. }

Output:

Hello C
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