https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108195
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:72e46b3c7ad5e3d2c69868a510c00707c356106a commit r13-5313-g72e46b3c7ad5e3d2c69868a510c00707c356106a Author: Jason Merrill <ja...@redhat.com> Date: Mon Jan 23 15:03:47 2023 -0500 c++: vector of class with bool ctor [PR108195] The transformation done by r13-4564 to use the iterator constructor instead of the initializer-list constructor breaks if the iterator pointers are themselves treated as elements of an initializer-list, so check for that. PR c++/108195 gcc/cp/ChangeLog: * call.cc (build_user_type_conversion_1): Check whether the iterators also find a list ctor. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/initlist-vect2.C: New test.