Your Struct is Wasting Memory and You Don't Know It

We write structs by listing fields in whatever order feels readable. Name, then age, then score. It compiles. It runs. The compiler silently bloats it, misaligns it, or both, and you ship it without ever checking. Here are three structs holding the exact same six fields: #include #include #include struct Good { double balance ; uint64_t transaction_id ; int32_t account_type ; int16_t region_code ; char status ; char currency [ 4 ]; }; struct Bad { char status ; double balance ; int16_t region_co