Comments in c programming language

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Comments are those which hide the text from compiler. which is used to discribe the code or to create the documentation of your program in code.

Type of Comments

In C programming language we have two type of comments.

1. Single Line Comment:

Single line comments are used to hide single line of code or text from compiler.
Single-line comments start with two forward slashes (//).
Any text after // will be ignored by the c compiler

Syntex:

printf("Hello World!"); // This is a single line comment
printf("Any Message!"); // This is a single line comment

2. Multi Line Comment:

/* here we have a code written below will print the Message
to the screen, and this is amazing use of multiline comment */
printf("Message!");

It's up to developer which one he wants to use. Normally, we use // for short comments, and /* */ for longer one.

Text of Comment in the program should be enclosed within /* anything */ or //anything.
Unuseful lines of our code we can hide using comment.

/* Text of Comment write here */
si = p * n * r / 100 ;
we can write any number of comments at any place of the program.
- Before the statement
  /* Comment */ si = p * n * r / 100 ;
- After the statement
  si = p * n * r / 100 ; /* Comment */
- Within the statement
  si = p * n * r / /* Comment */ 100 ;
Comments can't be nested means one comment cannot be written inside another comment.
For example
/* Cal of SI /* Nested Comment */ */ is invalid.

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