[Bug c++/106040] New: gcc reports error in aggregate when member has explicit constructor

[ldalessandro at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106040

            Bug ID: 106040
           Summary: gcc reports error in aggregate when member has
                    explicit constructor
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ldalessandro at gmail dot com
  Target Milestone: ---

gcc fails to compile the following example, as it seems to be treating .i{0} as
an implicit operation rather than an explicit construction. Both clang and MSVC
accept the example.

    struct foo {
        explicit foo(int) {}
    };

    struct bar {
        foo i;
    };

    bar x {
        .i{0} // <-- error:
    };

error: <source>:11:1: error: converting to 'foo' from initializer list would
use explicit constructor 'foo::foo(int)'

live: https://godbolt.org/z/hhvnGaK6c