int x = 3; x = 4; // error! int* p = &x; *p = 4; // is that an error?
f.c:4:8: warning: initializing 'int *' with an expression of type 'const int *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] 4 | int* p = &x; | ^ ~~ 1 warning generated.
