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* [Bug c++/29939] New: Please implement rvalue references
@ 2006-11-22 14:19 jyasskin at gmail dot com
2006-11-22 15:07 ` [Bug c++/29939] " fang at csl dot cornell dot edu
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: jyasskin at gmail dot com @ 2006-11-22 14:19 UTC (permalink / raw)
To: gcc-bugs
Rvalue references as described in
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html were voted
into the C++0x working draft at the 2006 Portland meeting, and I'd like to use
them.
--
Summary: Please implement rvalue references
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jyasskin at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Please implement rvalue references
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
@ 2006-11-22 15:07 ` fang at csl dot cornell dot edu
2006-11-22 16:22 ` hhinnant at apple dot com
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: fang at csl dot cornell dot edu @ 2006-11-22 15:07 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from fang at csl dot cornell dot edu 2006-11-22 15:07 -------
There was some (suspended) discussion about support for rvalue references in PR
24803. Is there a plan for them somewhere in the pipeline?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Please implement rvalue references
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
2006-11-22 15:07 ` [Bug c++/29939] " fang at csl dot cornell dot edu
@ 2006-11-22 16:22 ` hhinnant at apple dot com
2006-11-22 16:44 ` [Bug c++/29939] Add rvalue references (C++0x) pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hhinnant at apple dot com @ 2006-11-22 16:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from hhinnant at apple dot com 2006-11-22 16:21 -------
If there is a plan, I don't know about it.
Russell Yanofsky has a prototype implementation here:
http://russ.yanofsky.org/rref/
I haven't looked at it enough to know how complete it is. It was done a couple
of years ago.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
2006-11-22 15:07 ` [Bug c++/29939] " fang at csl dot cornell dot edu
2006-11-22 16:22 ` hhinnant at apple dot com
@ 2006-11-22 16:44 ` pinskia at gcc dot gnu dot org
2006-11-29 18:36 ` hhinnant at apple dot com
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-11-22 16:44 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Priority|P3 |P5
Last reconfirmed|0000-00-00 00:00:00 |2006-11-22 16:43:53
date| |
Summary|Please implement rvalue |Add rvalue references
|references |(C++0x)
Version|unknown |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
` (2 preceding siblings ...)
2006-11-22 16:44 ` [Bug c++/29939] Add rvalue references (C++0x) pinskia at gcc dot gnu dot org
@ 2006-11-29 18:36 ` hhinnant at apple dot com
2006-11-29 19:00 ` fang at csl dot cornell dot edu
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hhinnant at apple dot com @ 2006-11-29 18:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from hhinnant at apple dot com 2006-11-29 18:36 -------
Recent work:
http://mndfck.org/~pedro.lamarao/projects/c++0x/
http://home.twcny.rr.com/hinnant/cpp_extensions/rvalue_ref_test/
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
` (3 preceding siblings ...)
2006-11-29 18:36 ` hhinnant at apple dot com
@ 2006-11-29 19:00 ` fang at csl dot cornell dot edu
2007-02-21 20:17 ` hhinnant at apple dot com
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: fang at csl dot cornell dot edu @ 2006-11-29 19:00 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from fang at csl dot cornell dot edu 2006-11-29 19:00 -------
Subject: Re: Add rvalue references (C++0x)
On 29 Nov 2006, hhinnant at apple dot com wrote:
> ------- Comment #3 from hhinnant at apple dot com 2006-11-29 18:36 -------
> Recent work:
>
> http://mndfck.org/~pedro.lamarao/projects/c++0x/
> http://home.twcny.rr.com/hinnant/cpp_extensions/rvalue_ref_test/
Excellent, these tests look like simple examples to learn from, as a
supplement to the technical reports. Thanks for putting this together.
I'll be following developments and testing from time to time.
I'm highly anticipating this in the upcoming standard.
Fang
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
` (4 preceding siblings ...)
2006-11-29 19:00 ` fang at csl dot cornell dot edu
@ 2007-02-21 20:17 ` hhinnant at apple dot com
2007-02-21 20:26 ` fang at csl dot cornell dot edu
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hhinnant at apple dot com @ 2007-02-21 20:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from hhinnant at apple dot com 2007-02-21 20:17 -------
Russell Yanofsky has submitted a patch implementing N2118:
http://gcc.gnu.org/ml/gcc-patches/2007-02/msg01760.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
` (5 preceding siblings ...)
2007-02-21 20:17 ` hhinnant at apple dot com
@ 2007-02-21 20:26 ` fang at csl dot cornell dot edu
2007-05-31 1:18 ` dgregor at gcc dot gnu dot org
2007-05-31 1:29 ` dgregor at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: fang at csl dot cornell dot edu @ 2007-02-21 20:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from fang at csl dot cornell dot edu 2007-02-21 20:26 -------
Subject: Re: Add rvalue references (C++0x)
> ------- Comment #5 from hhinnant at apple dot com 2007-02-21 20:17 -------
> Russell Yanofsky has submitted a patch implementing N2118:
>
> http://gcc.gnu.org/ml/gcc-patches/2007-02/msg01760.html
Thanks for the update. *excitement*
But shouldn't the patch be dated 2007-02-20? or is it really 2006-02-20?
:)
Fang
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
` (6 preceding siblings ...)
2007-02-21 20:26 ` fang at csl dot cornell dot edu
@ 2007-05-31 1:18 ` dgregor at gcc dot gnu dot org
2007-05-31 1:29 ` dgregor at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-05-31 1:18 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from dgregor at gcc dot gnu dot org 2007-05-31 01:18 -------
Subject: Bug 29939
Author: dgregor
Date: Thu May 31 01:18:22 2007
New Revision: 125211
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125211
Log:
2007-05-30 Russell Yanofsky <russ@yanofsky.org>
Douglas Gregor <doug.gregor@gmail.com>
Pedro Lamarao <pedro.lamarao@mndfck.org>
Howard Hinnant <howard.hinnant@gmail.com>
PR c++/7412
PR c++/29939
* g++.dg/cpp0x/rv8p.C: New.
* g++.dg/cpp0x/temp-constructor-bug.C: New.
* g++.dg/cpp0x/cast-bug.C: New.
* g++.dg/cpp0x/elision_weak.C: New.
* g++.dg/cpp0x/collapse-bug.C: New.
* g++.dg/cpp0x/rv3p.C: New.
* g++.dg/cpp0x/rv7n.C: New.
* g++.dg/cpp0x/overload-conv-1.C: New.
* g++.dg/cpp0x/rv2n.C: New.
* g++.dg/cpp0x/deduce.C: New.
* g++.dg/cpp0x/temp-va-arg-bug.C: New.
* g++.dg/cpp0x/rv6p.C: New.
* g++.dg/cpp0x/template_deduction.C: New.
* g++.dg/cpp0x/implicit-copy.C: New.
* g++.dg/cpp0x/rv1p.C: New.
* g++.dg/cpp0x/cast.C: New.
* g++.dg/cpp0x/rv5n.C: New.
* g++.dg/cpp0x/collapse.C: New.
* g++.dg/cpp0x/overload-conv-2.C: New.
* g++.dg/cpp0x/rv4p.C: New.
* g++.dg/cpp0x/rvo.C: New.
* g++.dg/cpp0x/iop.C: New.
* g++.dg/cpp0x/rv3n.C: New.
* g++.dg/cpp0x/rv7p.C: New.
* g++.dg/cpp0x/reference_collapsing.C: New.
* g++.dg/cpp0x/overload.C: New.
* g++.dg/cpp0x/named.C: New.
* g++.dg/cpp0x/rv2p.C: New.
* g++.dg/cpp0x/rv6n.C: New.
* g++.dg/cpp0x/not_special.C: New.
* g++.dg/cpp0x/bind.C: New.
* g++.dg/cpp0x/rv1n.C: New.
* g++.dg/cpp0x/rv5p.C: New.
* g++.dg/cpp0x/elision.C: New.
* g++.dg/cpp0x/named_refs.C: New.
* g++.dg/cpp0x/unnamed_refs.C: New.
* g++.dg/cpp0x/rv4n.C: New.
* g++.dg/cpp0x/elision_neg.C: New.
* g++.dg/init/copy7.C: Run in C++98 mode.
* g++.dg/overload/arg1.C: Ditto.
* g++.dg/overload/arg4.C: Ditto.
2007-05-30 Russell Yanofsky <russ@yanofsky.org>
Douglas Gregor <doug.gregor@gmail.com>
Pedro Lamarao <pedro.lamarao@mndfck.org>
Howard Hinnant <howard.hinnant@gmail.com>
PR c++/7412
PR c++/29939
* typeck.c (comptypes): Don't consider rvalue and lvalue
reference types to be equivalent.
(check_return_expr): Move from certain lvalues when returning
them.
* decl.c (grokdeclarator): Implement reference collapsing.
(copy_fn_p): Don't consider constructors taking rvalue references
to be copy constructors.
(move_fn_p): New.
* call.c (conversion): New "rvaluedness_matches_p" member.
(convert_class_to_reference): Require reference type as first
parameter instead of base type.
(reference_binding): Add logic to handle rvalue references.
(implicit_conversion): Update inaccurate comment.
(convert_like_real): Disable creation of temporaries that are
impossible to initialize for types with move constructors.
(build_over_call): Elide move constructors when possible.
(maybe_handle_implicit_object): Set "rvaluedness_matches_p".
(maybe_handle_ref_bind): Return conversion instead of type node.
(compare_ics): Add logic to use "rvaluedness_matches_p" values to
determine preferred conversion sequences.
* cp-tree.h (TYPE_REF_IS_RVALUE): New.
(LOOKUP_PREFER_RVALUE): New.
(DECL_MOVE_CONSTRUCTOR_P): New.
(struct cp_declarator): Add "reference" member for reference
types, with new "rvalue_ref" flag.
(cp_build_reference_type): Declare.
(move_fn_p): Declare.
* error.c (dump_type_prefix): Format rvalue reference types
correctly in error messages.
* except.c (build_throw): Move from certain lvalues when
throwing.
* mangle.c (write_type): Mangle rvalue references differently
than regular references.
* parser.c (make_reference_declarator): Add boolean parameter for
rvalue references.
(cp_parser_make_indirect_declarator): New.
(cp_parser_new_declarator_opt): Call
cp_parser_make_indirect_declarator.
(cp_parser_conversion_declarator_opt): Ditto.
(cp_parser_declarator): Ditto.
(cp_parser_ptr_operator): Parse "&&" tokens into rvalue reference
declarators.
* pt.c (tsubst): Implement reference collapsing.
(maybe_adjust_types_for_deduction): Implement special template
parameter deduction rule for rvalue references.
(type_unification_real): Update calls to
maybe_adjust_types_for_deduction.
(try_one_overload): Ditto.
(unify_pack_expansion): Ditto.
* tree.c (lvalue_p_1): Handle rvalue reference types.
(cp_build_reference_type): New.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/bind.C
trunk/gcc/testsuite/g++.dg/cpp0x/cast-bug.C
trunk/gcc/testsuite/g++.dg/cpp0x/cast.C
trunk/gcc/testsuite/g++.dg/cpp0x/collapse-bug.C
trunk/gcc/testsuite/g++.dg/cpp0x/collapse.C
trunk/gcc/testsuite/g++.dg/cpp0x/deduce.C
trunk/gcc/testsuite/g++.dg/cpp0x/elision.C
trunk/gcc/testsuite/g++.dg/cpp0x/elision_neg.C
trunk/gcc/testsuite/g++.dg/cpp0x/elision_weak.C
trunk/gcc/testsuite/g++.dg/cpp0x/implicit-copy.C
trunk/gcc/testsuite/g++.dg/cpp0x/iop.C
trunk/gcc/testsuite/g++.dg/cpp0x/named.C
trunk/gcc/testsuite/g++.dg/cpp0x/named_refs.C
trunk/gcc/testsuite/g++.dg/cpp0x/not_special.C
trunk/gcc/testsuite/g++.dg/cpp0x/overload-conv-1.C
trunk/gcc/testsuite/g++.dg/cpp0x/overload-conv-2.C
trunk/gcc/testsuite/g++.dg/cpp0x/overload.C
trunk/gcc/testsuite/g++.dg/cpp0x/reference_collapsing.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv1n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv1p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv2n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv2p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv3n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv3p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv4n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv4p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv5n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv5p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv6n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv6p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv7n.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv7p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rv8p.C
trunk/gcc/testsuite/g++.dg/cpp0x/rvo.C
trunk/gcc/testsuite/g++.dg/cpp0x/temp-constructor-bug.C
trunk/gcc/testsuite/g++.dg/cpp0x/temp-va-arg-bug.C
trunk/gcc/testsuite/g++.dg/cpp0x/template_deduction.C
trunk/gcc/testsuite/g++.dg/cpp0x/unnamed_refs.C
Modified:
trunk/ChangeLog
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
trunk/gcc/cp/cp-tree.h
trunk/gcc/cp/decl.c
trunk/gcc/cp/error.c
trunk/gcc/cp/except.c
trunk/gcc/cp/mangle.c
trunk/gcc/cp/parser.c
trunk/gcc/cp/pt.c
trunk/gcc/cp/tree.c
trunk/gcc/cp/typeck.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/init/copy7.C
trunk/gcc/testsuite/g++.dg/overload/arg1.C
trunk/gcc/testsuite/g++.dg/overload/arg4.C
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/29939] Add rvalue references (C++0x)
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
` (7 preceding siblings ...)
2007-05-31 1:18 ` dgregor at gcc dot gnu dot org
@ 2007-05-31 1:29 ` dgregor at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-05-31 1:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from dgregor at gcc dot gnu dot org 2007-05-31 01:28 -------
Rvalue references are now supported on mainline (for 4.3.0) in the experimental
C++0x mode.
--
dgregor at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29939
^ permalink raw reply [flat|nested] 10+ messages in thread
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Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-11-22 14:19 [Bug c++/29939] New: Please implement rvalue references jyasskin at gmail dot com
2006-11-22 15:07 ` [Bug c++/29939] " fang at csl dot cornell dot edu
2006-11-22 16:22 ` hhinnant at apple dot com
2006-11-22 16:44 ` [Bug c++/29939] Add rvalue references (C++0x) pinskia at gcc dot gnu dot org
2006-11-29 18:36 ` hhinnant at apple dot com
2006-11-29 19:00 ` fang at csl dot cornell dot edu
2007-02-21 20:17 ` hhinnant at apple dot com
2007-02-21 20:26 ` fang at csl dot cornell dot edu
2007-05-31 1:18 ` dgregor at gcc dot gnu dot org
2007-05-31 1:29 ` dgregor at gcc dot gnu dot org
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