https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77585
Nathan Sidwell <nathan at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |nathan at gcc dot gnu.org --- Comment #1 from Nathan Sidwell <nathan at gcc dot gnu.org> --- Created attachment 40336 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40336&action=edit smaller testcase I independently reduced an exemplar to the attached testcase. The necessary condition is that the lambda is defined within the argument list of the function it is being passed to.