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* [Bug libstdc++/47709] New: is_heap(standard iterator) becomes ambiguous in C++0x mode
@ 2011-02-12 6:36 jyasskin at gcc dot gnu.org
2011-02-12 10:12 ` [Bug libstdc++/47709] " paolo.carlini at oracle dot com
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: jyasskin at gcc dot gnu.org @ 2011-02-12 6:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47709
Summary: is_heap(standard iterator) becomes ambiguous in C++0x
mode
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jyasskin@gcc.gnu.org
$ cat test.cc
#include <ext/algorithm>
#include <vector>
void foo() {
std::vector<int> v;
is_heap(v.begin(), v.end());
}
$ g++-4.6svn -c test.cc
$ g++-4.6svn -c test.cc -std=c++0x
test.cc: In function ‘void foo()’:
test.cc:6:29: error: call of overloaded ‘is_heap(std::vector<int>::iterator,
std::vector<int>::iterator)’ is ambiguous
test.cc:6:29: note: candidates are:
include/c++/4.6.0/ext/algorithm:436:5: note: bool
__gnu_cxx::is_heap(_RandomAccessIterator, _RandomAccessIterator) [with
_RandomAccessIterator = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]
include/c++/4.6.0/bits/stl_heap.h:560:72: note: bool std::is_heap(_RAIter,
_RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<int*, std::vector<int> >]
I believe the fix is to "using std::is_heap" into __gnu_cxx in C++0x mode
rather than redefining it there. Another possible fix would be to move
__normal_iterator out of __gnu_cxx to avoid ADL finding that is_heap, but that
wouldn't help people who have already "using __gnu_cxx::is_heap" into their
global namespaces.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/47709] is_heap(standard iterator) becomes ambiguous in C++0x mode
2011-02-12 6:36 [Bug libstdc++/47709] New: is_heap(standard iterator) becomes ambiguous in C++0x mode jyasskin at gcc dot gnu.org
@ 2011-02-12 10:12 ` paolo.carlini at oracle dot com
2011-02-12 21:27 ` paolo at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-02-12 10:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47709
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.02.12 10:05:02
AssignedTo|unassigned at gcc dot |paolo.carlini at oracle dot
|gnu.org |com
Target Milestone|--- |4.6.0
Ever Confirmed|0 |1
--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-02-12 10:05:02 UTC ---
I'm going to implement your first suggestion. Note, however, frankly: the
legacy ext/ stuff is really barely maintained, we are not going to deal
systematically with this kind of issues, unless the fix turns out to be
*really* trivial.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/47709] is_heap(standard iterator) becomes ambiguous in C++0x mode
2011-02-12 6:36 [Bug libstdc++/47709] New: is_heap(standard iterator) becomes ambiguous in C++0x mode jyasskin at gcc dot gnu.org
2011-02-12 10:12 ` [Bug libstdc++/47709] " paolo.carlini at oracle dot com
@ 2011-02-12 21:27 ` paolo at gcc dot gnu.org
2011-02-12 21:29 ` paolo.carlini at oracle dot com
2011-02-12 21:29 ` paolo at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: paolo at gcc dot gnu.org @ 2011-02-12 21:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47709
--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2011-02-12 21:26:24 UTC ---
Author: paolo
Date: Sat Feb 12 21:26:21 2011
New Revision: 170089
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170089
Log:
2011-02-12 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/47709
* include/ext/algorithm (is_heap): In C++0x mode import from
namespace std.
* testsuite/ext/is_heap/47709.cc: New.
Added:
trunk/libstdc++-v3/testsuite/ext/is_heap/47709.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/ext/algorithm
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/47709] is_heap(standard iterator) becomes ambiguous in C++0x mode
2011-02-12 6:36 [Bug libstdc++/47709] New: is_heap(standard iterator) becomes ambiguous in C++0x mode jyasskin at gcc dot gnu.org
2011-02-12 10:12 ` [Bug libstdc++/47709] " paolo.carlini at oracle dot com
2011-02-12 21:27 ` paolo at gcc dot gnu.org
@ 2011-02-12 21:29 ` paolo.carlini at oracle dot com
2011-02-12 21:29 ` paolo at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-02-12 21:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47709
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|4.6.0 |4.5.3
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-02-12 21:28:55 UTC ---
Fixed mainline and 4_5-branch.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/47709] is_heap(standard iterator) becomes ambiguous in C++0x mode
2011-02-12 6:36 [Bug libstdc++/47709] New: is_heap(standard iterator) becomes ambiguous in C++0x mode jyasskin at gcc dot gnu.org
` (2 preceding siblings ...)
2011-02-12 21:29 ` paolo.carlini at oracle dot com
@ 2011-02-12 21:29 ` paolo at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: paolo at gcc dot gnu.org @ 2011-02-12 21:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47709
--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2011-02-12 21:27:00 UTC ---
Author: paolo
Date: Sat Feb 12 21:26:58 2011
New Revision: 170090
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170090
Log:
2011-02-12 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/47709
* include/ext/algorithm (is_heap): In C++0x mode import from
namespace std.
* testsuite/ext/is_heap/47709.cc: New.
Added:
branches/gcc-4_5-branch/libstdc++-v3/testsuite/ext/is_heap/47709.cc
Modified:
branches/gcc-4_5-branch/libstdc++-v3/ChangeLog
branches/gcc-4_5-branch/libstdc++-v3/include/ext/algorithm
^ permalink raw reply [flat|nested] 5+ messages in thread
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2011-02-12 6:36 [Bug libstdc++/47709] New: is_heap(standard iterator) becomes ambiguous in C++0x mode jyasskin at gcc dot gnu.org
2011-02-12 10:12 ` [Bug libstdc++/47709] " paolo.carlini at oracle dot com
2011-02-12 21:27 ` paolo at gcc dot gnu.org
2011-02-12 21:29 ` paolo.carlini at oracle dot com
2011-02-12 21:29 ` paolo at gcc dot gnu.org
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