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* [Bug libstdc++/26133] New: unique_copy requires assignability when using output iterators
@ 2006-02-06 15:34 squell at alumina dot nl
2006-02-06 15:36 ` [Bug libstdc++/26133] " squell at alumina dot nl
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: squell at alumina dot nl @ 2006-02-06 15:34 UTC (permalink / raw)
To: gcc-bugs
unique_copy is overloaded on forward- and output_iterators for the result
iterator; the output_iterator version requires Assignability on the input's
value_type, which isn't required by the resolution to DR #241:
http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#241
I'll attach a demonstration, which compiles on at least one other
implementation. When using only input AND only output iterators,
implementations must keep a temporary copy somewhere; is the standard implying
that implementations use placement new for that?
--
Summary: unique_copy requires assignability when using output
iterators
Product: gcc
Version: 4.0.1
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: squell at alumina dot nl
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26133
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/26133] unique_copy requires assignability when using output iterators
2006-02-06 15:34 [Bug libstdc++/26133] New: unique_copy requires assignability when using output iterators squell at alumina dot nl
@ 2006-02-06 15:36 ` squell at alumina dot nl
2006-02-08 10:09 ` pcarlini at suse dot de
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: squell at alumina dot nl @ 2006-02-06 15:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from squell at alumina dot nl 2006-02-06 15:36 -------
Created an attachment (id=10784)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10784&action=view)
Test case
Test case; the output should be "23".
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26133
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/26133] unique_copy requires assignability when using output iterators
2006-02-06 15:34 [Bug libstdc++/26133] New: unique_copy requires assignability when using output iterators squell at alumina dot nl
2006-02-06 15:36 ` [Bug libstdc++/26133] " squell at alumina dot nl
@ 2006-02-08 10:09 ` pcarlini at suse dot de
2006-02-08 21:52 ` paolo at gcc dot gnu dot org
2006-02-08 21:53 ` pcarlini at suse dot de
3 siblings, 0 replies; 5+ messages in thread
From: pcarlini at suse dot de @ 2006-02-08 10:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pcarlini at suse dot de 2006-02-08 10:09 -------
Working on it...
--
pcarlini at suse dot de changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |pcarlini at suse dot de
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-02-08 10:09:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26133
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/26133] unique_copy requires assignability when using output iterators
2006-02-06 15:34 [Bug libstdc++/26133] New: unique_copy requires assignability when using output iterators squell at alumina dot nl
2006-02-06 15:36 ` [Bug libstdc++/26133] " squell at alumina dot nl
2006-02-08 10:09 ` pcarlini at suse dot de
@ 2006-02-08 21:52 ` paolo at gcc dot gnu dot org
2006-02-08 21:53 ` pcarlini at suse dot de
3 siblings, 0 replies; 5+ messages in thread
From: paolo at gcc dot gnu dot org @ 2006-02-08 21:52 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from paolo at gcc dot gnu dot org 2006-02-08 21:52 -------
Subject: Bug 26133
Author: paolo
Date: Wed Feb 8 21:51:55 2006
New Revision: 110772
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110772
Log:
2006-02-08 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/26133 (DR 241, [WP])
* include/bits/stl_algo.h (__unique_copy(,,, forward_iterator_tag,
output_iterator_tag), __unique_copy(,,, input_iterator_tag,
output_iterator_tag), __unique_copy(,,, input_iterator_tag,
forward_iterator_tag), and predicated counterparts): Add.
(__unique_copy(,,, output_iterator_tag), __unique_copy(,,,
forward_iterator_tag), and predicated counterparts): Remove.
(unique_copy): Adjust, dispatch to the three helpers above.
* testsuite/25_algorithms/unique_copy/2.cc: New.
* testsuite/25_algorithms/unique_copy/26133.cc: Likewise.
* testsuite/25_algorithms/unique_copy/3.cc: Likewise.
* docs/html/ext/howto.html: Add an entry for DR 241.
* testsuite/25_algorithms/unique_copy/1.cc: Minor cosmetic changes.
Added:
trunk/libstdc++-v3/testsuite/25_algorithms/unique_copy/2.cc
trunk/libstdc++-v3/testsuite/25_algorithms/unique_copy/26133.cc
trunk/libstdc++-v3/testsuite/25_algorithms/unique_copy/3.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/docs/html/ext/howto.html
trunk/libstdc++-v3/include/bits/stl_algo.h
trunk/libstdc++-v3/testsuite/25_algorithms/unique_copy/1.cc
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26133
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/26133] unique_copy requires assignability when using output iterators
2006-02-06 15:34 [Bug libstdc++/26133] New: unique_copy requires assignability when using output iterators squell at alumina dot nl
` (2 preceding siblings ...)
2006-02-08 21:52 ` paolo at gcc dot gnu dot org
@ 2006-02-08 21:53 ` pcarlini at suse dot de
3 siblings, 0 replies; 5+ messages in thread
From: pcarlini at suse dot de @ 2006-02-08 21:53 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pcarlini at suse dot de 2006-02-08 21:53 -------
Fixed for 4.2.0.
--
pcarlini at suse dot de changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.2.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26133
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2006-02-06 15:34 [Bug libstdc++/26133] New: unique_copy requires assignability when using output iterators squell at alumina dot nl
2006-02-06 15:36 ` [Bug libstdc++/26133] " squell at alumina dot nl
2006-02-08 10:09 ` pcarlini at suse dot de
2006-02-08 21:52 ` paolo at gcc dot gnu dot org
2006-02-08 21:53 ` pcarlini at suse dot de
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