bitwise not operator

hi all
i want to know how this bitwise not operator functions
for example
~5 wht is its result?

 

Search engines aren't difficult to use. If you go to Google and type in "c++ bitwise not" then it'll fetch back a list of useful websites you can look at for more information.

Here's a nice little demo page of how to do it, that I sometimes show people:
http://lmgtfy.com/?q=c+++bitwise+not