https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106614
Bug ID: 106614
Summary: GCC skips using copy constructor when creating object
using direct initialization in A a({A{}});
Product: gcc
Version: 12.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jlame646 at gmail dot com
Target Milestone: ---
The following program prints `0` instead of `1` with gcc.
https://gcc.godbolt.org/z/WEz336E3r
```
#include <iostream>
struct A {
int v = 0;
A() {}
A(const A &) : v(1) {}
};
int main() {
A a({A{}});
std::cout << a.v; //this prints 0 in gcc instead of 1
}
```
The above program should print `0` as per dcl.init#17.6. The same program is
discussed here: https://stackoverflow.com/q/73345030/12002570
