/in/sam.cpp: In function 'void ifz(Stack&, Queue&, int)':
/in/sam.cpp:88:9: error: unused variable 'first' [-Werror=unused-variable]
     int first=stack.pop();
         ^~~~~
/in/sam.cpp: In function 'int main(int, char**)':
/in/sam.cpp:163:26: error: statement has no effect [-Werror=unused-value]
                 indicator==true;
                 ~~~~~~~~~^~~~~~
cc1plus: all warnings being treated as errors
/in/compile/Makefile:16: recipe for target 'buildStackMachine' failed
make: *** [buildStackMachine] Error 1