to_ref

to_ref_t kumi::to_ref {}

inlineconstexprnoexceptnodiscard

Callable object creating a kumi::concepts::product_type of references given a reference to a kumi::concepts::product_type.

If the input type matches the kumi::concepts::record_type protocol, return a kumi::record, returns a kumi::tuple otherwise.

Header file

#include <kumi/tuple.hpp>

Call Signature

template<product_type T>
constexpr decltype(auto) to_ref(T && t) noexcept;

Parameters

• t: Product Type whose elements are to be referenced.

Return value

• A kumi::concepts::product_type with each element being a reference to the corresponding element in the input.

Examples

#include <kumi/kumi.hpp>
#include <iostream>
int main()
{
  auto original = kumi::make_tuple(0,'0',0.f);
  auto ref      = kumi::to_ref( original );
 
  std::cout << original << "\n";
 
  kumi::get<0>(ref) = 9;
  kumi::get<1>(ref) = 'z';
  kumi::get<2>(ref) = 3.14159f;
 
  std::cout << original << "\n";
}