common_product_type()

template<product_type... Ts>

constexpr auto kumi::common_product_type ( Ts...  )

inlineconstexpr

Extracts the common product_type of a parameter pack, if all the types are record then it returns an empty record, otherwise returns an empty kumi::tuple

Template Parameters

Ts	The product_types to access

Helper type

namespace kumi::result
{
  template<typename... Ts> using common_product_type_t 
      = typename common_product_type<Ts...>::type;
}