get_index_of_type()

template<typename U, kumi::concepts::product_type T>
requires (kumi::concepts::queryable_by_type<U, T>)

auto kumi::get_index_of_type ( )

inlineconsteval

Helper to retrieve the index of a type in a product type by its type.

Note

This function does not participate in overload resolution if the product type has several instances of the same type or if it is empty.

Returns

the index of the element of type U in the product type if it exists