That is incorrect.  The char is still only 1 byte.  There are 3 bytes of padding due to struct alignment for the following member (the float).

Put 4 chars in a struct all by themselves and your struct will only be 4 bytes in size.

That is incorrect.  The char is still only 1 byte.  There are 3 bytes of padding due to struct alignment.

Put 4 chars in a struct all by themselves and your struct will only be 4 bytes in size.