I tried to copy-paste the following google search url in comments:
http://www.google.com/codesearch?hl=en&lr=&q=lang:c+%22char+***%22&sbtn=Search
But it shows like this
http://www.google.com/codesearch?hl=en&lr=&q=lang:c+%22char+***%22&sbtn=Search
Maybe this is due to markdown syntax (** **). But, it should be taken care of, right?