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* [Bug libstdc++/64650] New: std::experimental::bad_optional_access is not default constructible
@ 2015-01-17 22:41 redi at gcc dot gnu.org
2015-01-17 22:41 ` [Bug libstdc++/64650] " redi at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: redi at gcc dot gnu.org @ 2015-01-17 22:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64650
Bug ID: 64650
Summary: std::experimental::bad_optional_access is not default
constructible
Product: gcc
Version: 4.9.3
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
This should compile using -std=c++14:
#include <experimental/optional>
std::experimental::bad_optional_access e;
badopt.cc:3:40: error: no matching function for call to
‘std::experimental::fundamentals_v1::bad_optional_access::bad_optional_access()’
std::experimental::bad_optional_access e;
^
>From gcc-bugs-return-473684-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Jan 17 23:02:52 2015
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/64651] New: std::rethrow_exception not found by ADL
Date: Sat, 17 Jan 2015 23:02:00 -0000
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X-Bugzilla-Version: 4.9.3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd651
Bug ID: 64651
Summary: std::rethrow_exception not found by ADL
Product: gcc
Version: 4.9.3
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
This fails (using -std=c++11):
#include <exception>
int main()
{
std::exception_ptr e;
rethrow_exception(e);
}
The standard declares:
typedef _unspecified_ exception_ptr;
[[noreturn]] void rethrow_exception(exception_ptr p);
So it's conforming for exception_ptr to be a typedef for a type in a different
namespace, and in that case ADL won't find std::rethrow_exception, but it's not
very helpful to users for it to fail.
This makes it work as expected:
--- a/libstdc++-v3/libsupc++/exception_ptr.h
+++ b/libstdc++-v3/libsupc++/exception_ptr.h
@@ -68,6 +68,8 @@ namespace std
namespace __exception_ptr
{
+ using std::rethrow_exception;
+
/**
* @brief An opaque pointer to an arbitrary exception.
* @ingroup exceptions
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/64650] std::experimental::bad_optional_access is not default constructible 2015-01-17 22:41 [Bug libstdc++/64650] New: std::experimental::bad_optional_access is not default constructible redi at gcc dot gnu.org @ 2015-01-17 22:41 ` redi at gcc dot gnu.org 2015-01-20 11:51 ` redi at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: redi at gcc dot gnu.org @ 2015-01-17 22:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64650 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-01-17 Ever confirmed|0 |1 Known to fail| |4.9.3, 5.0 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/64650] std::experimental::bad_optional_access is not default constructible 2015-01-17 22:41 [Bug libstdc++/64650] New: std::experimental::bad_optional_access is not default constructible redi at gcc dot gnu.org 2015-01-17 22:41 ` [Bug libstdc++/64650] " redi at gcc dot gnu.org @ 2015-01-20 11:51 ` redi at gcc dot gnu.org 2015-06-10 9:43 ` redi at gcc dot gnu.org 2015-06-10 9:44 ` redi at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: redi at gcc dot gnu.org @ 2015-01-20 11:51 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64650 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Tue Jan 20 11:51:03 2015 New Revision: 219889 URL: https://gcc.gnu.org/viewcvs?rev=219889&root=gcc&view=rev Log: PR libstdc++/64650 * include/experimental/optional (bad_optional_access): Add default constructor. * testsuite/experimental/optional/requirements.cc: Test for default constructor. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/experimental/optional trunk/libstdc++-v3/testsuite/experimental/optional/requirements.cc ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/64650] std::experimental::bad_optional_access is not default constructible 2015-01-17 22:41 [Bug libstdc++/64650] New: std::experimental::bad_optional_access is not default constructible redi at gcc dot gnu.org 2015-01-17 22:41 ` [Bug libstdc++/64650] " redi at gcc dot gnu.org 2015-01-20 11:51 ` redi at gcc dot gnu.org @ 2015-06-10 9:43 ` redi at gcc dot gnu.org 2015-06-10 9:44 ` redi at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: redi at gcc dot gnu.org @ 2015-06-10 9:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64650 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Wed Jun 10 09:42:37 2015 New Revision: 224323 URL: https://gcc.gnu.org/viewcvs?rev=224323&root=gcc&view=rev Log: Backport from mainline 2015-01-20 Jonathan Wakely <jwakely@redhat.com> PR libstdc++/64650 * include/experimental/optional (bad_optional_access): Add default constructor. * testsuite/experimental/optional/requirements.cc: Test for default constructor. Modified: branches/gcc-4_9-branch/libstdc++-v3/ChangeLog branches/gcc-4_9-branch/libstdc++-v3/include/experimental/optional branches/gcc-4_9-branch/libstdc++-v3/testsuite/experimental/optional/requirements.cc ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libstdc++/64650] std::experimental::bad_optional_access is not default constructible 2015-01-17 22:41 [Bug libstdc++/64650] New: std::experimental::bad_optional_access is not default constructible redi at gcc dot gnu.org ` (2 preceding siblings ...) 2015-06-10 9:43 ` redi at gcc dot gnu.org @ 2015-06-10 9:44 ` redi at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: redi at gcc dot gnu.org @ 2015-06-10 9:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64650 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |4.9.3 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Fixed for 4.9.3 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-06-10 9:44 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-01-17 22:41 [Bug libstdc++/64650] New: std::experimental::bad_optional_access is not default constructible redi at gcc dot gnu.org 2015-01-17 22:41 ` [Bug libstdc++/64650] " redi at gcc dot gnu.org 2015-01-20 11:51 ` redi at gcc dot gnu.org 2015-06-10 9:43 ` redi at gcc dot gnu.org 2015-06-10 9:44 ` redi at gcc dot gnu.org
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