Compilare: user.cpp: In function ‘int main()’: user.cpp:18:29: warning: ‘white.Poz::j’ may be used uninitialized in this function [-Wmaybe-uninitialized] return this -> i == k.i and this -> j == k.j; ^ user.cpp:128:7: note: ‘white.Poz::j’ was declared here Poz white; ^ user.cpp:18:29: warning: ‘white.Poz::i’ may be used uninitialized in this function [-Wmaybe-uninitialized] return this -> i == k.i and this -> j == k.j; ^ user.cpp:128:7: note: ‘white.Poz::i’ was declared here Poz white; ^