vim align c file
 

I want to align c file which is randomly written.
I use the command gg=G, which align the entire c
file but unable to adjust within 80 colums.
i set the textwidth 80 using following command
:set textwidth=80
but unable to align file vertically.

Would somebody please help me to find the solution

I'm not sure what you are looking for, but a program that might help is called "indent". There is a -l option which sets the maximum line length. This program is designed to correctly indent (format) programs written in C to make them more readable. Try "man indent" for more details.

You may want the wrap and wrapmargin options http://www.ph.unimelb.edu.au/~ssk/vim/options.html

Now

:set paste
before you copy/paste anything
:set nopaste
to end it
hths