Struct's contribution to type size
c, overhead, struct
Solution
No, it just merely composes all the elements into one higher-level element whose size is merely the individual elements' sizes added up (plus some padding depending on alignment rules, but that's out of the scope of this question).
Problem
I am wondering why the following two types ``` struct { double re[2]; }; ``` and ``` double re[2]; ``` have the same size in C? Doesn't struct add a bit of size overhead?