from_tuple()

template<typename Type , typename... Ts>
requires (!product_type<Type> && _::implicit_constructible<Type, Ts...>)

constexpr auto kumi::from_tuple ( tuple< Ts... > const &  t )

inlineconstexpr

Converts a kumi::tuple to an instance of an arbitrary type.

Constructs an instance of Type by passing elements of t to the appropriate constructor.

Template Parameters

Type	Type to generate

Parameters

t	kumi::tuple to convert

Returns

An instance of Type constructed from each element of t in order.

Example

 
#include <kumi/kumi.hpp>
#include <iostream>
#include <string>
 
struct my_struct
{
  int         i;
  float       f;
  std::string name;
};
 
int main()
{
  auto a = kumi::make_tuple(1337, 2.3475f, "John");
  auto b = from_tuple<my_struct>( a );
 
  std::cout << a << "\n";
  std::cout << b.i << ' ' << b.f << ' ' << b.name << "\n";
}