On Tue, 2007-09-04 at 13:17 +0200, [EMAIL PROTECTED] wrote: > It is related to structure packing that seems to be sometimes incompatible > with > what WinCE API expects. See the example below :
I'm not sure exactly what you suspect, but when I had such problems way
back when I was young, the way to test was using a simple program like
this :
#include <stdio.h>
#include <windows.h>
struct s {
DWORD a;
DWORD b;
BOOL c;
} ss;
main()
{
wchar_t msg[256];
swprintf(msg, L"size %d\r\nb at %d\r\nc at %d",
sizeof(ss),
((char *)&ss.b) - ((char *)&ss),
((char *)&ss.c) - ((char *)&ss));
MessageBoxW(0, msg, L"Feedback", 0);
}
On my PDA this shows :
size 12
b at 4
c at 8
This doesn't reveal everything that might go wrong. Another one might be
alignment of structure addresses on a multiple of 4 or so. I've not
tested that here.
Does anyone know whether rules for stuff like this is in the ARM ABI ?
Danny
--
Danny Backx ; danny.backx - at - scarlet.be ; http://danny.backx.info
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