3 ms·The classic is: #define TRUE FALSE or the even more pernicious: #define 1 0by qwertyuiop924 10y agoThe classic is: #define TRUE FALSE or the even more pernicious: #define 1 0digi_owl 10y agoStraight from the Ministry of Truth that one...ctdonath 10y agoI once chased a bug which turned out to be: someone had #defined the letter 'T' as something else, in a chain of #include files nested 19 deep. Completely screwed up a bunch of C++ templates.