public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c++/112839] New: Unable to default initialize member variable in specific circumstances
@ 2023-12-03 20:54 luigighiron at gmail dot com
2023-12-03 21:04 ` [Bug c++/112839] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: luigighiron at gmail dot com @ 2023-12-03 20:54 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112839
Bug ID: 112839
Summary: Unable to default initialize member variable in
specific circumstances
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: luigighiron at gmail dot com
Target Milestone: ---
The following code is not accepted by GCC:
struct A {
struct B {
int C = 0;
};
A() = default;
A(int) {}
std::pair<B, B> p;
};
The error message generated indicates that it was unable to find a constructor
to call in the constructor A(int).
Doing any of the following seems to remove the error:
1. Removing the constructor A()
2. Explicitly define the constructor A()
3. Defining a default constructor for B (that isn't defaulted)
4. Removing the default value from C
5. Initializing p when it is being declared, i.e. std::pair<B, B> p{};
6. Defining B outside of the class
7. Using a non-default constructor in the member initializer list
Clang, MSVC, and old versions of GCC (version 8, version 5, and version 4)
accept this code.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/112839] Unable to default initialize member variable in specific circumstances
2023-12-03 20:54 [Bug c++/112839] New: Unable to default initialize member variable in specific circumstances luigighiron at gmail dot com
@ 2023-12-03 21:04 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-12-03 21:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112839
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This code is not valid C++ really due to the nested classes are not complete
until after the `}` of the outer class ....
*** This bug has been marked as a duplicate of bug 102199 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-12-03 21:04 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-12-03 20:54 [Bug c++/112839] New: Unable to default initialize member variable in specific circumstances luigighiron at gmail dot com
2023-12-03 21:04 ` [Bug c++/112839] " pinskia at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).