Method capacity

include/function2/function2.hpp:1142–1144

Returns the capacity of this erasure

public:
  /// Returns the capacity of this erasure
  static constexpr std::size_t capacity() noexcept {
    return internal_capacity_holder<typename Config::capacity>::capacity();
  }

  FU2_DETAIL_CXX14_CONSTEXPR erasure() noexcept {
    vtable_.set_empty();