Comparing with 0.

From: Val (valmont_programming_at_hotmail.com)
Date: 02/20/05 

Date: Sun, 20 Feb 2005 22:41:23 +0100

How does C++ compare an integer with the value "0"?

I've tried to fiddle with the biswise operators but I can't do it.
Is the "==" operator in C++ somewhere defined in a header or source file for
(say) integers? Where?
Obviously I would like to write (myInt == 0) in terms of bitwise operators
for an 8 bit=1 byte (32 bit) machine.