My favorite ouch is the following:
if ( thingy_bits & TEST_ME == 0) {
}
"When in doubt, parenthesize." -Kernighan and Plaugher
--
John Woods, Charles River Data Systems, Framingham MA, (617) 626-1101
...!decvax!frog!john, ...!mit-eddie!jfw, jfw%mit-ccc at MIT-XX.ARPA