Error(s):

source_file.cpp:6:52: warning: multi-character character constant [-Wmultichar]
    A(const A bitand) { std::cout<<"A(const A &)"<<'/n': }
                                                   ^
source_file.cpp:6:56: error: expected ';' after expression
    A(const A bitand) { std::cout<<"A(const A &)"<<'/n': }
                                                       ^
                                                       ;
source_file.cpp:7:38: warning: multi-character character constant [-Wmultichar]
    A(A and) { std::cout<<"A(A &&)"<<'/n'; }
                                     ^
source_file.cpp:8:36: warning: multi-character character constant [-Wmultichar]
    compl A() { std::cout<<"~A()"<<'/n'; }
                                   ^
source_file.cpp:9:87: warning: multi-character character constant [-Wmultichar]
    A bitand operator=(const A bitand) bitand { std::cout<<"A& operator=(const A &)"<<'/n'; }
                                                                                      ^
4 warnings and 1 error generated.