https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68826
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
No ICE with current trunk:
68826.cc: In instantiation of 'bool requires_types(Types&& ...) [with Types =
{char, int, const char (&)[3]}]':
68826.cc:10:30: required from here
68826.cc:5:19: error: 'foo' was not declared in this scope
5 | requires { foo(types); });
| ~~~^~~~~~~
68826.cc:5:19: error: 'foo' was not declared in this scope, and no declarations
were found by argument-dependent lookup at the point of instantiation
[-fpermissive]
68826.cc:5:19: error: 'foo' was not declared in this scope, and no declarations
were found by argument-dependent lookup at the point of instantiation
[-fpermissive]
