dir.cpp: In function `int main()': dir.cpp:24: warning: assignment to non-pointer type `char' from NULL dir.cpp:24: warning: argument to non-pointer type `char' from NULL dir.cpp:39: warning: assignment to non-pointer type `char' from NULL dir.cpp:39: warning: argument to non-pointer type `char' from NULL dir.cpp:48: warning: assignment to non-pointer type `char' from NULL dir.cpp:48: warning: argument to non-pointer type `char' from NULL dir.cpp:69: warning: assignment to non-pointer type `char' from NULL dir.cpp:69: warning: argument to non-pointer type `char' from NULL dir.cpp:78: warning: assignment to non-pointer type `char' from NULL dir.cpp:78: warning: argument to non-pointer type `char' from NULL dir.cpp:107:2: warning: no newline at end of file