Compilare: main.cpp: In function 'double Q_rsqrt(double)': main.cpp:100:14: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 100 | i = *(long long*)&y; | ^~~~~~~~~~~~~~ main.cpp:104:14: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 104 | y = *(double*)&i; | ^~~~~~~~~~~ main.cpp:100:13: warning: 'y' is used uninitialized [-Wuninitialized] 100 | i = *(long long*)&y; | ^~~~~~~~~~~~~~~ main.cpp:95:20: note: 'y' declared here 95 | double x2, y; | ^