Doxygen : Automatic Documentation Generation(in html,latex)

Doxygen is a package, which autogenerates documentation based on the comments you have added. It is just that you have to comment the code properly, and it will take the lead

Installation

sudo apt-get install doxygen

Compiling

Step 1 : Go to the file location, eg.  /home/myfolder/

Step 2 :  Generate Configuration file

doxygen -g abc.config

Step 3 : Generate Documentation

doxygen abc.config

The last step will generate sample documentation in latex, html automatically, which we can view,modify.

How to write code(to include)

/*
* This function description will be
* included in final source.
* @param input1 Used for task1
*/

and further use /// for including the comment pertaining to variable description in final documentation.

 References

http://www.doxygen.org/