https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
Richard Biener changed:
What|Removed |Added
Status|WAITING |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #9 from andysem at mail dot ru ---
Ok, so it seems then that what I need cannot be implemented portably. In that
case, this bug can be closed. Thanks to everyone.
But we do need a solution for bug #88101 (and Boost.Atomic) eventually.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #8 from andysem at mail dot ru ---
(In reply to rguent...@suse.de from comment #5)
> > Is there any other way to achieve the effect of initializing padding in a
> > struct?
>
> The only way I see would be to do that inside the constru
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #7 from Jonathan Wakely ---
(In reply to andysem from comment #4)
> Are you saying that implementation is allowed to not preserve unused storage
> state upon construction and assignment? Because I don't think this is what
> the standa
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #6 from Jonathan Wakely ---
(In reply to andysem from comment #0)
> It doesn't say anything about modifying padding bits,
It also doesn't say anything about leaving them with their previous values. I
think your expectation is wrong.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #5 from rguenther at suse dot de ---
On Tue, 25 Feb 2020, andysem at mail dot ru wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
>
> --- Comment #4 from andysem at mail dot ru ---
> Are you saying that implementation is
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #4 from andysem at mail dot ru ---
Are you saying that implementation is allowed to not preserve unused storage
state upon construction and assignment? Because I don't think this is what the
standard says.
Is there any other way to ac
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #2 from Andrew Pinski ---
std::memset(storage.bytes, 0, sizeof(storage.bytes));
From* p = new (storage.bytes) From(from);
The memset here is considered as Dead code.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93916
--- Comment #1 from andysem at mail dot ru ---
Created attachment 47902
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47902&action=edit
A test case that demonstrates the problem
10 matches
Mail list logo
