basic_result(const success_type<T> &)

Implicit value-from-success-type-sugar copy constructor used to disambiguate the construction of the value type. Note that if T = void, value_type will be default constructed. Calls void on_result_copy_construction(T *, U &&) noexcept with this and const success_type<T> &.

Requires: predicate::enable_compatible_conversion<T, void, void> is true, or T is void.

Complexity: Same as for the value_type constructor which accepts T, or the value_type default constructor if T is void. Constexpr, triviality and noexcept of underlying operations is propagated.