Why use "." in the struct in this way?

[Dave Hellewell]

On 30/07/13 00:56, lx wrote:
> hi all:
>        why use the struct in this way by "."
> 
> for example, *.owner* instead of *owner* , why? 

It's utilising a feature known as designated initialisers. Essentially,
using this technique, struct members may be initialised out of order
from the way the struct is defined.

cf.
http://en.wikipedia.org/wiki/Struct_(C_programming_language)#Struct_initialization

Cheers,

Dave