https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101107
--- Comment #2 from Bernard Teo <btzy1996 at gmail dot com> --- Hmm, I didn't realise it was brace elision - the error makes much more sense this way. Reporting the assumption (e.g. "`A` can't be initialized from `*this`, assuming brace elision") would solve the problem. In my opinion the important part of the message is that "`A` can't be initialized from `*this`" - just that part should point the programmer in the right direction.