cod.cpp: In function `int main()': cod.cpp:17: warning: initialization to non-pointer type `char' from NULL cod.cpp:17: warning: argument to non-pointer type `char' from NULL cod.cpp:17: warning: initialization to non-pointer type `char' from NULL cod.cpp:17: warning: argument to non-pointer type `char' from NULL cod.cpp:17: warning: initialization to non-pointer type `char' from NULL cod.cpp:17: warning: argument to non-pointer type `char' from NULL cod.cpp:20: warning: NULL used in arithmetic cod.cpp:21: warning: NULL used in arithmetic cod.cpp:26: warning: assignment to non-pointer type `char' from NULL cod.cpp:26: warning: argument to non-pointer type `char' from NULL cod.cpp:27: warning: assignment to non-pointer type `char' from NULL cod.cpp:27: warning: argument to non-pointer type `char' from NULL cod.cpp:33: warning: assignment to non-pointer type `char' from NULL cod.cpp:33: warning: argument to non-pointer type `char' from NULL cod.cpp:17: warning: unused variable `char c' cod.cpp:40:2: warning: no newline at end of file