Using Vim's folding feature to hide inactive conditional code

I was recently looking at some C code which had lots of conditionally compiled sections (#if, #else, #endif).  I don't care for code like that but sometimes it's a necessity when source code must support multiple hardware platforms.  In any case, it makes the code harder to read.  So I've whipped up a little macro which if placed on the #if or #else line, will use Vim's folding feature to hide that portion of code.


map    \fc   mx^%:'x,. fold


To unhide the folded section, you can issue the zd command.  I've buried that in a macro invoked by "\fd" since the more mnemonic macros are easier for me to remember.