prog.c:1:1: warning: return type defaults to 'int' [-Wimplicit-int]
main(){printf(&unix["\021%six\012\0"], (unix)["have"]+"fun"-0x60);}
^
prog.c: In function 'main':
prog.c:1:8: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
main(){printf(&unix["\021%six\012\0"], (unix)["have"]+"fun"-0x60);}
^
prog.c:1:8: warning: incompatible implicit declaration of built-in function 'printf'
prog.c:1:8: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:1:16: error: 'unix' undeclared (first use in this function)
main(){printf(&unix["\021%six\012\0"], (unix)["have"]+"fun"-0x60);}
^
prog.c:1:16: note: each undeclared identifier is reported only once for each function it appears in