Function write_empty

include/function2/function2.hpp:469–472

See opcode::op_fetch_empty

/// See opcode::op_fetch_empty
static FU2_DETAIL_CXX14_CONSTEXPR void write_empty(data_accessor* accessor,
                                                   bool empty) noexcept {
  accessor->inplace_storage_ = std::size_t(empty);
}

template <typename From, typename To>
using transfer_const_t =