http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52991
daniel.c.klauer at web dot de changed:
What |Removed |Added
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CC| |daniel.c.klauer at web dot
| |de
--- Comment #1 from daniel.c.klauer at web dot de 2012-08-18 03:37:01 UTC ---
I think I may have encountered this issue aswell. For example, given the
following example program:
#include <stdio.h>
#include <wchar.h>
struct A {
short s;
struct { int i; };
} __attribute__((__packed__));
struct B {
short s;
struct { int i; } __attribute__((__packed__));
} __attribute__((__packed__));
struct C {
struct { int i; };
short s;
} __attribute__((__packed__));
int main() {
printf("sizeof(struct A) == %i\n", (int)sizeof(struct A));
printf("sizeof(struct B) == %i\n", (int)sizeof(struct B));
printf("sizeof(struct C) == %i\n", (int)sizeof(struct C));
return 0;
}
with TDM-GCC's mingw32 gcc 4.6.1, all sizes are 6, and for comparison, with
Ubuntu's i686-linux-gnu gcc 4.6.3, all sizes are 6.
However, with mingw.org's gcc 4.7.0, sizeof(A) == 8. B and C still are 6, as
expected; A on the other hand apparently is not being packed, despite the
__attribute__((__packed__)).
