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* [Bug libstdc++/51960] New: Missing move-assignment operator in raw_storage_iterator
@ 2012-01-23 10:45 valyala at gmail dot com
2012-01-23 11:47 ` [Bug libstdc++/51960] " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: valyala at gmail dot com @ 2012-01-23 10:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51960
Bug #: 51960
Summary: Missing move-assignment operator in
raw_storage_iterator
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: libstdc++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: valyala@gmail.com
It's interesting why raw_storage_iterator (
http://gcc.gnu.org/viewcvs/trunk/libstdc%2B%2B-v3/include/bits/stl_raw_storage_iter.h?revision=169421&view=markup
) doesn't provide move-assignment operator? Such an operator would allow moving
items to a raw memory instead of copying them. In this case the
raw_storage_iterator could be properly used with std::move()-like algorithms:
template <typename InputIterator, typename T>
void move_to_raw_buffer(InputIterator first, InputIterator last, T *raw_buffer)
{
std::move(first, last, std::raw_storage_iterator<T *, T>(raw_buffer));
}
Currently this results in items' copying instead of expected items' movement
due to the lack of move-assignment operator in the raw_storage_iterator
implementation.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug libstdc++/51960] Missing move-assignment operator in raw_storage_iterator 2012-01-23 10:45 [Bug libstdc++/51960] New: Missing move-assignment operator in raw_storage_iterator valyala at gmail dot com @ 2012-01-23 11:47 ` redi at gcc dot gnu.org 2012-03-22 10:51 ` paolo.carlini at oracle dot com 2012-03-22 11:15 ` [Bug libstdc++/51960] [DR 2127] " redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2012-01-23 11:47 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51960 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-01-23 Ever Confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-23 11:29:36 UTC --- I'll check if this has been suggested before and if not will raise it with the committee. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/51960] Missing move-assignment operator in raw_storage_iterator 2012-01-23 10:45 [Bug libstdc++/51960] New: Missing move-assignment operator in raw_storage_iterator valyala at gmail dot com 2012-01-23 11:47 ` [Bug libstdc++/51960] " redi at gcc dot gnu.org @ 2012-03-22 10:51 ` paolo.carlini at oracle dot com 2012-03-22 11:15 ` [Bug libstdc++/51960] [DR 2127] " redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2012-03-22 10:51 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51960 --- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-03-22 10:49:08 UTC --- Shall we suspend this? Do we have a DR #? ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/51960] [DR 2127] Missing move-assignment operator in raw_storage_iterator 2012-01-23 10:45 [Bug libstdc++/51960] New: Missing move-assignment operator in raw_storage_iterator valyala at gmail dot com 2012-01-23 11:47 ` [Bug libstdc++/51960] " redi at gcc dot gnu.org 2012-03-22 10:51 ` paolo.carlini at oracle dot com @ 2012-03-22 11:15 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2012-03-22 11:15 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51960 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |SUSPENDED Summary|Missing move-assignment |[DR 2127] Missing |operator in |move-assignment operator in |raw_storage_iterator |raw_storage_iterator --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-03-22 11:08:06 UTC --- Yes, http://cplusplus.github.com/LWG/lwg-active.html#2127 No consensus for change so far. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-03-22 11:08 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-01-23 10:45 [Bug libstdc++/51960] New: Missing move-assignment operator in raw_storage_iterator valyala at gmail dot com 2012-01-23 11:47 ` [Bug libstdc++/51960] " redi at gcc dot gnu.org 2012-03-22 10:51 ` paolo.carlini at oracle dot com 2012-03-22 11:15 ` [Bug libstdc++/51960] [DR 2127] " redi at gcc dot gnu.org
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