initialization of static struct with GCC 3.0.1
Thanh-Lam NGUYEN
nguyen56@sxb.bsf.alcatel.fr
Tue Sep 18 00:34:00 GMT 2001
Hi,
here is the code I tried to compile :
---------------------------------------------------
#include <stdlib.h>
#include <stdio.h>
typedef union {
long l;
struct {
short ll;
short lh;
};
} tunion;
const tunion initunion={ 0x11223344l };
int main( void )
{
static tunion t=initunion;
printf( "t.l : %#lx\nt.ll : %#lx\nt.lh : %#lx\n", t.l, t.ll, t.lh
);
}
---------------------------------------------------
nothing very special.
Here's the message I get :
>gcc union.c
union.c: In function `main':
union.c:16: initializer element is not constant
Exit 1
When I remove the "static" prefix, it compiles fine.
What I want to do is to initialize my union once at the begining of a
function and from then,
I want it to retain its value each time I call the function.
Is there another way to do it ?
Currently I use a if statement to do it, but I need to optimize my code
to gain speed.
Thanks for any reply
Thanh lam NGUYEN
More information about the Gcc-help
mailing list