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* [Bug c++/37860] New: default and delete used w/ member functions vs. initialization
@ 2008-10-17 8:18 bkoz at gcc dot gnu dot org
2008-10-17 8:20 ` [Bug c++/37860] " bkoz at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2008-10-17 8:18 UTC (permalink / raw)
To: gcc-bugs
Valid C++0x code is failing to compile. Support for default and delete appears
to be incomplete, as certain valid initialization fails. An example:
struct b
{
bool t;
b() = default;
~b() = default;
b& operator=(const b&) = delete;
b(const b&) = delete;
};
int main()
{
// copy initialization
b tst1 = { false }; // valid but error
// copy initialization.
b tst2 = false;
// direct initialization, copy list initialization syntax
b tst3 { false }; // valid but error
// default initialization
b tst4;
}
See tst1, tst3.
This is related to the GCC bug report about standard layout types but I'm going
to go and file individual bug reports about known issues.
--
Summary: default and delete used w/ member functions vs.
initialization
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bkoz at gcc dot gnu dot org
GCC host triplet: all
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37860
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/37860] default and delete used w/ member functions vs. initialization
2008-10-17 8:18 [Bug c++/37860] New: default and delete used w/ member functions vs. initialization bkoz at gcc dot gnu dot org
@ 2008-10-17 8:20 ` bkoz at gcc dot gnu dot org
2008-10-22 22:31 ` [Bug c++/37860] standard_layout: direct and copy initialization issues bkoz at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2008-10-17 8:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from bkoz at gcc dot gnu dot org 2008-10-17 08:19 -------
Sorry, that should have a single argument ctor.
Like:
struct b
{
bool t;
b() = default;
~b() = default;
b& operator=(const b&) = delete;
b(const b&) = delete;
b(bool) { }
};
Gives:
%g++ -std=c++0x -c atomic_init_forms.cc
atomic_init_forms.cc: In function 'int main()':
atomic_init_forms.cc:8: error: deleted function 'b::b(const b&)'
atomic_init_forms.cc:16: error: used here
atomic_init_forms.cc:8: error: deleted function 'b::b(const b&)'
atomic_init_forms.cc:19: error: used here
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37860
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/37860] standard_layout: direct and copy initialization issues
2008-10-17 8:18 [Bug c++/37860] New: default and delete used w/ member functions vs. initialization bkoz at gcc dot gnu dot org
2008-10-17 8:20 ` [Bug c++/37860] " bkoz at gcc dot gnu dot org
@ 2008-10-22 22:31 ` bkoz at gcc dot gnu dot org
2008-10-22 23:08 ` bkoz at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2008-10-22 22:31 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from bkoz at gcc dot gnu dot org 2008-10-22 22:30 -------
Changed summary
--
bkoz at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|default and delete used w/ |standard_layout: direct and
|member functions vs. |copy initialization issues
|initialization |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37860
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/37860] standard_layout: direct and copy initialization issues
2008-10-17 8:18 [Bug c++/37860] New: default and delete used w/ member functions vs. initialization bkoz at gcc dot gnu dot org
2008-10-17 8:20 ` [Bug c++/37860] " bkoz at gcc dot gnu dot org
2008-10-22 22:31 ` [Bug c++/37860] standard_layout: direct and copy initialization issues bkoz at gcc dot gnu dot org
@ 2008-10-22 23:08 ` bkoz at gcc dot gnu dot org
2008-12-02 19:18 ` jason at gcc dot gnu dot org
2008-12-02 23:59 ` jason at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: bkoz at gcc dot gnu dot org @ 2008-10-22 23:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from bkoz at gcc dot gnu dot org 2008-10-22 23:07 -------
Can work around this by adding initializer_list ctor.
b(std::initializer_list<bool> __a)
: t(*__a.begin()) { }
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37860
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/37860] standard_layout: direct and copy initialization issues
2008-10-17 8:18 [Bug c++/37860] New: default and delete used w/ member functions vs. initialization bkoz at gcc dot gnu dot org
` (2 preceding siblings ...)
2008-10-22 23:08 ` bkoz at gcc dot gnu dot org
@ 2008-12-02 19:18 ` jason at gcc dot gnu dot org
2008-12-02 23:59 ` jason at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu dot org @ 2008-12-02 19:18 UTC (permalink / raw)
To: gcc-bugs
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jason at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2008-12-02 19:13:13
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37860
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/37860] standard_layout: direct and copy initialization issues
2008-10-17 8:18 [Bug c++/37860] New: default and delete used w/ member functions vs. initialization bkoz at gcc dot gnu dot org
` (3 preceding siblings ...)
2008-12-02 19:18 ` jason at gcc dot gnu dot org
@ 2008-12-02 23:59 ` jason at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu dot org @ 2008-12-02 23:59 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jason at gcc dot gnu dot org 2008-12-02 23:53 -------
Fixed.
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37860
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2008-12-02 23:59 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2008-10-17 8:18 [Bug c++/37860] New: default and delete used w/ member functions vs. initialization bkoz at gcc dot gnu dot org
2008-10-17 8:20 ` [Bug c++/37860] " bkoz at gcc dot gnu dot org
2008-10-22 22:31 ` [Bug c++/37860] standard_layout: direct and copy initialization issues bkoz at gcc dot gnu dot org
2008-10-22 23:08 ` bkoz at gcc dot gnu dot org
2008-12-02 19:18 ` jason at gcc dot gnu dot org
2008-12-02 23:59 ` jason at gcc dot gnu dot org
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