https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77563
Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Target Milestone|5.5 |6.4 Summary|[5/6 Regression] explicit |[5 Regression] explicit |constructor breaks |constructor breaks |narrowing conversion |narrowing conversion |overload resolution |overload resolution --- Comment #9 from Jason Merrill <jason at gcc dot gnu.org> --- Fixed for 6.4. Since the GCC 5 bug is just a strange diagnostic, I'm not going to fix it there.