https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66281
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |trippels at gcc dot gnu.org --- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Here is a variant: template <int> int bool_; template <char n> auto digit(bool_<n>); template <char, int, int y> auto evaluate(digit<y>); auto boost_hana_tmp_40 = evaluate<'1', '+', '2'>;