https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
Jonathan Wakely changed:
What|Removed |Added
CC||krisk0.2017.02.27@protonmai
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #12 from ville at gcc dot gnu.org ---
Author: ville
Date: Mon Oct 24 12:52:31 2016
New Revision: 241477
URL: https://gcc.gnu.org/viewcvs?rev=241477=gcc=rev
Log:
Backport from mainline:
2016-10-24 Ville Voutilainen
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
Ville Voutilainen changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #11 from ville at gcc dot gnu.org ---
Author: ville
Date: Mon Oct 24 12:46:44 2016
New Revision: 241476
URL: https://gcc.gnu.org/viewcvs?rev=241476=gcc=rev
Log:
Cross-port the latest resolution of LWG2756 and some
bug-fixes to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #10 from Ville Voutilainen ---
And yes, I plan to port this fix to experimental::optional on trunk and then
backport that.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #9 from Ville Voutilainen ---
Fixed on trunk so far.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #8 from ville at gcc dot gnu.org ---
Author: ville
Date: Wed Sep 21 17:37:17 2016
New Revision: 240324
URL: https://gcc.gnu.org/viewcvs?rev=240324=gcc=rev
Log:
PR libstdc++/77288
* include/std/optional
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #7 from Ville Voutilainen ---
See https://gcc.gnu.org/ml/gcc-patches/2016-08/msg01634.html for what the
aforementioned superior approach looks like.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #6 from Ville Voutilainen ---
There's a superior fix that retains conversions but doesn't cause this
regression. Stay tuned.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #5 from Ville Voutilainen ---
Ah. That would indeed mean that every converting assignment introduces
a temporary. Design-wise I'd rather have it so that optional doesn't convert
at all in the assignment. :)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #4 from dawid_jurek at vp dot pl ---
After applying my patch code snippet you provided compile, run and works as
expected. To be more precise I'm talking about such snippet:
std::experimental::optional os;
os = "meow";
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #3 from Ville Voutilainen ---
>Now behaviour is the same as in gcc 5.1 - operator=(_Up&& __u) is chosen in 2
>situations:
>1. _Up is NOT optional
>2. _Up is optional AND _Up is same as _Tp modulo cv-qualifiers, references etc.
How
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
Ville Voutilainen changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77288
--- Comment #1 from dawid_jurek at vp dot pl ---
Created attachment 39471
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39471=edit
Fix bug in operator=
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