https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105684
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |56456
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is that 'result->data0.a' is (*result).data0.a, and so to GCC you are
accessing an object of type 'obj' for which there isn't enough allocated space.
Now - I think the array bound diagnostic could be improved to better highlight
this.
A workaround might be to declare 'obj' as
struct obj {
unsigned long long kind;
unsigned long long data[];
};
if in your case all data is really uniform 'unsigned long long'. There's
no way to union several different typed flexarrays though.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56456
[Bug 56456] [meta-bug] bogus/missing -Warray-bounds
