Erik Mouw schrieb:
> On Thu, Nov 23, 2006 at 04:45:09PM +0100, René Scharfe wrote:
>> Is there really a compiler that inserts padding between arrays of
>> unsigned chars?
>
> Yes, that compiler is called "gcc".
>
> #include <stdio.h>
>
> struct foo {
> unsigned char a[3];
> unsigned char b[3];
> };
>
> int main(void)
> {
> printf("%d\n", sizeof(struct foo));
> return 0;
> }
>
> On i386 that prints 6, on ARM it prints 8.
Does it add 1 byte after a and and 1 after b or two after b?
I suspect it's the latter case -- otherwise Gerrit's patch,
which started this thread, wouldn't help solve his problem.
Or the pad sizing follows complicated rules that I do not
understand at the moment.
Time to look for an ARM emulator, it seems.
Thanks,
René
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