Author
anonymous
over 2 years ago
C++
gcc 9.3.0
$ g++ prog.cc -std=gnu++2a -O2 -Wnull-dereference
prog.cc: In function 'int main()': prog.cc:8:35: warning: null pointer dereference [-Wnull-dereference] 8 | if (d) static_cast<IF*>(d)->g(); | ^