A constexpr boolean true for types permissible in basic_result<T, E, NoValuePolicy>.

Overridable: Not overridable.

Definition: True for a type which:

• Is not a reference.
• Is not an in_place_type_t<T> .
• Is not a success_type<T> .
• Is not a failure_type<EC, EP = void> .
• Is not an array.
• Is either void, or else is an Object and is Destructible.

Namespace: BOOST_OUTCOME_V2_NAMESPACE::trait

Header: <boost/outcome/trait.hpp>