check-default-constuctable-copyable.cpp: In instantiation of '_check_default_and_copy_constructable<T>::_check_default_and_copy_constructable() [with T = non_default_constructable]':
check-default-constuctable-copyable.cpp:42:5:   required from here
check-default-constuctable-copyable.cpp:10:11: error: no matching function for call to 'non_default_constructable::non_default_constructable()'
check-default-constuctable-copyable.cpp:10:11: note: candidates are:
check-default-constuctable-copyable.cpp:23:5: note: non_default_constructable::non_default_constructable(int)
check-default-constuctable-copyable.cpp:23:5: note:   candidate expects 1 argument, 0 provided
check-default-constuctable-copyable.cpp:20:7: note: non_default_constructable::non_default_constructable(const non_default_constructable&)
check-default-constuctable-copyable.cpp:20:7: note:   candidate expects 1 argument, 0 provided
check-default-constuctable-copyable.cpp: In instantiation of '_check_default_and_copy_constructable<T>::_check_default_and_copy_constructable() [with T = non_copy_constructable]':
check-default-constuctable-copyable.cpp:43:5:   required from here
check-default-constuctable-copyable.cpp:36:5: error: 'non_copy_constructable::non_copy_constructable(const non_copy_constructable&)' is private
check-default-constuctable-copyable.cpp:11:33: error: within this context