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* [Bug c++/16043] New: missing C++11 move constructor
@ 2013-10-12 7:45 jan.kratochvil at redhat dot com
2013-10-12 8:30 ` [Bug c++/16043] " jan.kratochvil at redhat dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-10-12 7:45 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16043
Bug ID: 16043
Summary: missing C++11 move constructor
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: c++
Assignee: unassigned at sourceware dot org
Reporter: jan.kratochvil at redhat dot com
Created attachment 7230
--> https://sourceware.org/bugzilla/attachment.cgi?id=7230&action=edit
DW_TAG_rvalue_reference_type like DW_TAG_reference_type
#include <memory>
class C {
public:
C() {}
C(C &&o);
int i=42;
};
C::C(C &&o) {
i=o.i; /* line 9 */
}
int main() {
C a;
C b(std::move(a));
}
(1)
DW_TAG_rvalue_reference_type is not recognized:
(gdb) b 9
(gdb) run
(gdb) p o
$3 = <unknown type in /home/jkratoch/t/test7, CU 0x0, DIE 0x1f7b>
with attached patch:
(gdb) p o
$1 = (C &) @0x7fffffffd960: {i = 42}
(2)
'&&' operator is not parsed/evaluated:
(gdb) start
(gdb) next
(gdb) p &a
$1 = (C *) 0x7fffffffd960
(gdb) p (struct C &)a
$2 = (C &) @0x7fffffffd960: {i = 42}
(gdb) p (struct C &&)a
A syntax error in expression, near `&&)a'.
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* [Bug c++/16043] missing C++11 move constructor
2013-10-12 7:45 [Bug c++/16043] New: missing C++11 move constructor jan.kratochvil at redhat dot com
@ 2013-10-12 8:30 ` jan.kratochvil at redhat dot com
2013-10-12 8:31 ` jan.kratochvil at redhat dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-10-12 8:30 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16043
Jan Kratochvil <jan.kratochvil at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jan.kratochvil at redhat dot com
--- Comment #1 from Jan Kratochvil <jan.kratochvil at redhat dot com> ---
Created attachment 7231
--> https://sourceware.org/bugzilla/attachment.cgi?id=7231&action=edit
fix+testcase, just that it displays &
This fix+testcase would work, just that it displays:
$1 = (C &) @0x7fffffffd960: {i = 42}
while I think it should display:
$1 = (C &&) @0x7fffffffd960: {i = 42}
This means to either add TYPE_CODE_RVALUE_REF besides TYPE_CODE_REF which is
pretty tedious - referenced in 155 LoCs - due to missing types virtualization.
Or to add new main_type::flag_ref_is_rvalue but that is not too clean.
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* [Bug c++/16043] missing C++11 move constructor
2013-10-12 7:45 [Bug c++/16043] New: missing C++11 move constructor jan.kratochvil at redhat dot com
2013-10-12 8:30 ` [Bug c++/16043] " jan.kratochvil at redhat dot com
@ 2013-10-12 8:31 ` jan.kratochvil at redhat dot com
2013-10-12 15:29 ` jan.kratochvil at redhat dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-10-12 8:31 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16043
Jan Kratochvil <jan.kratochvil at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #7230|0 |1
is obsolete| |
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* [Bug c++/16043] missing C++11 move constructor
2013-10-12 7:45 [Bug c++/16043] New: missing C++11 move constructor jan.kratochvil at redhat dot com
` (2 preceding siblings ...)
2013-10-12 15:29 ` jan.kratochvil at redhat dot com
@ 2013-10-12 15:29 ` jan.kratochvil at redhat dot com
2013-10-14 16:30 ` jan.kratochvil at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-10-12 15:29 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16043
Jan Kratochvil <jan.kratochvil at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at sourceware dot org |jan.kratochvil at redhat dot com
--- Comment #2 from Jan Kratochvil <jan.kratochvil at redhat dot com> ---
[patch] Support C++11 rvalue (move constructor)
https://sourceware.org/ml/gdb-patches/2013-10/msg00403.html
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* [Bug c++/16043] missing C++11 move constructor
2013-10-12 7:45 [Bug c++/16043] New: missing C++11 move constructor jan.kratochvil at redhat dot com
2013-10-12 8:30 ` [Bug c++/16043] " jan.kratochvil at redhat dot com
2013-10-12 8:31 ` jan.kratochvil at redhat dot com
@ 2013-10-12 15:29 ` jan.kratochvil at redhat dot com
2013-10-12 15:29 ` jan.kratochvil at redhat dot com
2013-10-14 16:30 ` jan.kratochvil at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-10-12 15:29 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16043
Jan Kratochvil <jan.kratochvil at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #7231|0 |1
is obsolete| |
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/16043] missing C++11 move constructor
2013-10-12 7:45 [Bug c++/16043] New: missing C++11 move constructor jan.kratochvil at redhat dot com
` (3 preceding siblings ...)
2013-10-12 15:29 ` jan.kratochvil at redhat dot com
@ 2013-10-14 16:30 ` jan.kratochvil at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-10-14 16:30 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16043
Jan Kratochvil <jan.kratochvil at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Jan Kratochvil <jan.kratochvil at redhat dot com> ---
duplicate
*** This bug has been marked as a duplicate of bug 14441 ***
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end of thread, other threads:[~2013-10-14 16:30 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2013-10-12 7:45 [Bug c++/16043] New: missing C++11 move constructor jan.kratochvil at redhat dot com
2013-10-12 8:30 ` [Bug c++/16043] " jan.kratochvil at redhat dot com
2013-10-12 8:31 ` jan.kratochvil at redhat dot com
2013-10-12 15:29 ` jan.kratochvil at redhat dot com
2013-10-12 15:29 ` jan.kratochvil at redhat dot com
2013-10-14 16:30 ` jan.kratochvil at redhat dot com
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