[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |martinhaefner at web dot de

--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-09-07 12:56:49 UTC ---
*** Bug 50320 has been marked as a duplicate of this bug. ***

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |anthony.ajw at gmail dot
                   |                            |com

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-03-19 10:57:38 UTC ---
*** Bug 52612 has been marked as a duplicate of this bug. ***

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[redi at gcc dot gnu dot org]

------- Comment #12 from redi at gcc dot gnu dot org  2010-01-12 00:54 -------
Fixed for 4.5.0


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redi at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[redi at gcc dot gnu dot org]

------- Comment #11 from redi at gcc dot gnu dot org  2010-01-12 00:54 -------
Subject: Bug 35569

Author: redi
Date: Tue Jan 12 00:53:30 2010
New Revision: 155826

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155826
Log:
2010-01-12  Jonathan Wakely  <jwakely.gcc@gmail.com>

        PR libstdc++/24803
        PR libstdc++/35569
        PR libstdc++/42593
        * include/std/functional (bind): Forward rvalues and detect correct
        result type of bound function object.
        * include/std/mutex (call_once): Specify bind result type.
        * testsuite/20_util/reference_wrapper/invoke.cc: Remove invalid tests.
        * testsuite/20_util/reference_wrapper/24803.cc: Remove invalid tests
        and enable FIXME tests.
        * testsuite/20_util/bind/35569.cc: New.
        * testsuite/20_util/bind/ref2.cc: New.
        * testsuite/20_util/bind/38889.cc: New.
        * testsuite/20_util/bind/ref_neg.cc: New.
        * testsuite/20_util/bind/42593.cc: New.


Added:
    trunk/libstdc++-v3/testsuite/20_util/bind/35569.cc
    trunk/libstdc++-v3/testsuite/20_util/bind/38889.cc
    trunk/libstdc++-v3/testsuite/20_util/bind/42593.cc
    trunk/libstdc++-v3/testsuite/20_util/bind/ref2.cc
    trunk/libstdc++-v3/testsuite/20_util/bind/ref_neg.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/std/functional
    trunk/libstdc++-v3/include/std/mutex
    trunk/libstdc++-v3/testsuite/20_util/reference_wrapper/24803.cc
    trunk/libstdc++-v3/testsuite/20_util/reference_wrapper/invoke.cc


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[redi at gcc dot gnu dot org]

------- Comment #10 from redi at gcc dot gnu dot org  2009-11-11 14:05 -------
Sorry for the lack of progress, I'll take another crack at it this week and
report back on what I've got and what doesn't work.  If I can't finish it I'll
say so and unassign myself from this PR


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[paolo dot carlini at oracle dot com]

------- Comment #9 from paolo dot carlini at oracle dot com  2009-11-11 13:19 -------
Jon, do you have any updated plans about this and related issues? I think it
would be nice if we could make progress on the C++0x <functional> for 4.5.0...


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paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
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                 CC|                            |paolo dot carlini at oracle
                   |                            |dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[jwakely dot gcc at gmail dot com]

------- Comment #8 from jwakely dot gcc at gmail dot com  2009-06-05 12:48 -------
I've got std::bind and friends working with rvalues, but bug 34022 means that
ugly workarounds are needed to work with rvalues of scalar types.  When Core DR
664 is ready and bug 34022 is fixed that won't be necessary.

Similar problems exist when invoking std::function with scalar rvalue
arguments.


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jwakely dot gcc at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |34022


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[redi at gcc dot gnu dot org]

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redi at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jwakely dot gcc at gmail dot
                   |dot org                     |com
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[bangerth at dealii dot org]

------- Comment #7 from bangerth at dealii dot org  2009-01-18 03:58 -------
(In reply to comment #6)
> Maybe this issue isn't sufficiently clarified in the audit. Unless I'm badly
> mistaken (Jon, Chris will correct me), this is not a bug for a C++03 + TR1 bind
> (indeed the testcases provided by Doug are rather clear about that). Only in
> C++0x the specs say it must work. Of course implementations can also "fix" it
> for C++03 + TR1, but this is not in general the way we are managing these
> issues, we prefer leaving the TR1 version alone.

And it should work if you do -std=c++0x, which I believe (from the title of 
the PR) is what the original intent was.

W.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[paolo dot carlini at oracle dot com]

------- Comment #6 from paolo dot carlini at oracle dot com  2009-01-17 09:04 -------
Maybe this issue isn't sufficiently clarified in the audit. Unless I'm badly
mistaken (Jon, Chris will correct me), this is not a bug for a C++03 + TR1 bind
(indeed the testcases provided by Doug are rather clear about that). Only in
C++0x the specs say it must work. Of course implementations can also "fix" it
for C++03 + TR1, but this is not in general the way we are managing these
issues, we prefer leaving the TR1 version alone.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[bangerth at dealii dot org]

------- Comment #5 from bangerth at dealii dot org  2009-01-17 01:41 -------
(In reply to comment #2)
> I'm seeing the same thing with Boost.Bind (boost 1.37, GCC 4.2.1).

boost.bind appears to work just fine for me, though!?

W.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[cfairles at gcc dot gnu dot org]

------- Comment #4 from cfairles at gcc dot gnu dot org  2009-01-17 00:03 -------
*** Bug 38889 has been marked as a duplicate of this bug. ***


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cfairles at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |bangerth at dealii dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[jwakely dot gcc at gmail dot com]

------- Comment #3 from jwakely dot gcc at gmail dot com  2009-01-15 11:44 -------
I'm working on adding rvalue support to bind etc. but time is not on my side
recently.  I hope to make some more progress this weekend.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[jeff at schwabcenter dot com]

------- Comment #2 from jeff at schwabcenter dot com  2009-01-14 19:20 -------
I'm seeing the same thing with Boost.Bind (boost 1.37, GCC 4.2.1).

#include <boost/bind.hpp>
#include <functional>

using boost::bind;
using std::multiplies;

int main() {

    // Fine.
    int const lvalue = 5;
    bind(multiplies<int>(),4,_1)(lvalue);

    // Mistaken for a cast.
    bind(multiplies<int>(),4,_1)(5);
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[paolo dot carlini at oracle dot com]

------- Comment #1 from paolo dot carlini at oracle dot com  2008-11-24 14:55 -------
*** Bug 38238 has been marked as a duplicate of this bug. ***


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paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fuscated at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569

[Bug libstdc++/35569] [c++0x] std::bind result functor doesn't accept rvalues

[paolo dot carlini at oracle dot com]

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paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-10-02 17:27:55
               date|                            |
            Summary|std::[tr1::]bind result     |[c++0x] std::bind result
                   |functor doesn't accept      |functor doesn't accept
                   |rvalues                     |rvalues


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35569