from_tuple

template<typename Type>

from_tuple_t<Type> kumi::from_tuple {}

inlineconstexprnodiscard

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.

Header file

#include <kumi/product_types/tuple.hpp>

Call Signature

template<typename Type, product_type T>
constexpr auto from_tuple(T&& t);

Parameters

• Type : Type to generate
• t: kumi::tuple to convert.

Return value

• 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 = kumi::from_tuple<my_struct>( a );
 
  std::cout << a << "\n";
  std::cout << b.i << ' ' << b.f << ' ' << b.name << "\n";
}