static structs?
 

Hi all,
I am quite confused over a bit of code in C. Now here's my problem there is a function below, and this function gets called by a bunch of other functions. (Note: this is not in main()).

struct eToken * get_token_by_lun(DWORD Lun){
static struct eToken eToken;

if(Lun==0)
return &eToken;

return NULL;
}
now what happens everytime this function gets called, does it create a new eToken every single time?, ot does it create it first time, and never again?I'm confused by the static part, 'cause i thought static meant it's always there.
Thanks in advance,

Sim

The function will return a pointer to the same eToken every time it's called -- it will behave exactly as if the eToken variable was a global variable. If you want to return a new eToken every time, you'll have to use malloc() to allocate memory dynamically.

Alex

Cheers
 

oh ok, so it will be the same even if the calling functions modify that struct, correct me if i'm wrong. Thanks a lot for your help.

Sim

Yes, that's right.

Alex