Compilare: main.cpp: In function 'double Q_rsqrt(int64)': main.cpp:220:14: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 220 | i = *(long long*)&y; | ^~~~~~~~~~~~~~ main.cpp:224:14: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 224 | y = *(double*)&i; | ^~~~~~~~~~~ main.cpp:220:13: warning: 'y' is used uninitialized [-Wuninitialized] 220 | i = *(long long*)&y; | ^~~~~~~~~~~~~~~ main.cpp:215:20: note: 'y' declared here 215 | double x2, y; | ^