[Bug c++/94983] Empty list initialization of aggregate class with deleted default ctor rejected in C++14 and C++17

[andrey.vihrov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94983

--- Comment #3 from Andrey Vihrov  ---
Another sample, probably caused by the same underlying issue:

struct T
{
char a[3];
};

void bar()
{
T t{"x"};   // OK
T{"x"}; // OK
new T{"x"}; // error: could not convert '{"x"}' from
// '' to 'T'
}

[Bug c++/94983] Empty list initialization of aggregate class with deleted default ctor rejected in C++14 and C++17

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94983

Jonathan Wakely  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2020-05-09
   Keywords||rejects-valid
 Ever confirmed|0   |1

[Bug c++/94983] Empty list initialization of aggregate class with deleted default ctor rejected in C++14 and C++17

[andrey.vihrov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94983

--- Comment #2 from Andrey Vihrov  ---
Thanks for the helpful link.

To clarify, list initialization in a new-expression context behaves differently
from other cases such as "S{};" and "S s{};" (be their behavior correct or
incorrect).

[Bug c++/94983] Empty list initialization of aggregate class with deleted default ctor rejected in C++14 and C++17

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94983

--- Comment #1 from Jonathan Wakely  ---
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1008r1.pdf was the
C++20 change, and the appendix shows the messy history.