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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) -- links below jump to the message on this page -- 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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