executable at Ideone

#include <iostream> #define B(l,a) __##l##E##__ #define _O_ ((1<<2>>1<<1)-2) #define _h_ 7-3 #define _C_ (7/_h_) #define _r_ ((1<<0)+0x00a/2+_C_) #define _a_ ((1<<5)-_r_) #define _p_ { void _(){} namespace #define printf(_0_) squeak(_O_,B(LIN,!)-_a_); _ // this // is weird namespace _p_ { void squeak(int,int who) { switch (who) { case _O_: std::cout<<"quak"<<std::endl; break; case (_h_+_C_-2): std::cout<<"meow"<<std::endl; break; case _h_: std::cout<<"bow"<<std::endl; break; default: std::cout<<"blah"<<std::endl; break; }; }} } // do not review ... int main() { printf("hello

"); printf("this

"); printf("is

"); printf("not

"); printf("funny

"); printf("at all!

"); return 0; } //expected output: //meow //blah //quak //blah //bow //blah