Why structs took more space than it needs?

Question

I saw that when I checked the size of struct it took 36 bytes, but the same variables (without the struct) took 33 bytes. Why?

Probably some padding taking place. Post an example – Lews Therin Jan 28 '15 at 17:13 — Lews Therin, Jan 28 '15 at 17:13
Can you show examples of both? – Mike Christensen Jan 28 '15 at 17:13 — Mike Christensen, Jan 28 '15 at 17:13

Gopi · Accepted Answer · 2015-01-28T17:23:07.070

2

sizeof(struct) >= sum of all the structure members.

Because there might be extra padding for alignment requirements.That is the reason you are seeing that the size of the struct is more than what you thought.

edited Jan 28 '15 at 17:23

answered Jan 28 '15 at 17:14

Gopi

19,784
4
24
36

2

There can also be padding in the middle of a structure. – Dietrich Epp Jan 28 '15 at 17:16

Why structs took more space than it needs?

1 Answers1