Compilare: main.cpp: In member function 'matrice matrice::ridicare_patrat()': main.cpp:104:5: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In member function 'matrice& matrice::operator*=(matrice)': main.cpp:132:5: warning: no return statement in function returning non-void [-Wreturn-type] } ^