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Date: Sat, 6 Sep 2003 10:33:34 +0200
From: Alexander Leidinger <Alexander@Leidinger.net>
To: Marcel Moolenaar <marcel@xcllnt.net>
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Subject: Re: Question about genassym, locore.s and 0-sized
 arrays(showstopper for  an icc compiled kernel)
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On Fri, 5 Sep 2003 09:55:57 -0700
Marcel Moolenaar <marcel@xcllnt.net> wrote:

> Interesting, What does icc do with:
> 
> struct {
> 	int tag;
> 	char obj[];
> } foo;
> 
> And what does the sizeof() operator give.

---snip---
% <marcel.c 
#include <stdio.h>

struct {
        int tag;
        char obj[];
} foo;

int main(void) {
        struct foo bar;

        printf("%d\n", sizeof(struct foo));
        printf("%d\n", sizeof(bar));
        return 0;
}


% icc marcel.c
marcel.c(9): error: incomplete type is not allowed
        struct foo bar;
                   ^

marcel.c(11): warning #70: incomplete type is not allowed
        printf("%d\n", sizeof(struct foo));
                              ^

compilation aborted for marcel.c (code 2)

% <marcel.c  
#include <stdio.h>

struct {
        int tag;
        char obj[];
} foo;

int main(void) {
        printf("%d\n", sizeof(struct foo));
        return 0;
}

% icc marcel.c
marcel.c(9): warning #70: incomplete type is not allowed
        printf("%d\n", sizeof(struct foo));
                              ^
% ./a.out     
0
---snip---

Bye,
Alexander.

-- 
                      Loose bits sink chips.

http://www.Leidinger.net                       Alexander @ Leidinger.net
  GPG fingerprint = C518 BC70 E67F 143F BE91  3365 79E2 9C60 B006 3FE7