for_each_index()

template<typename Function, concepts::product_type Tuple, concepts::product_type... Tuples>

void kumi::for_each_index ( Function f, Tuple && t, Tuples &&... ts )

inlineconstexpr

Applies the Callable object f on each element of a kumi::product_type and its index.

Note

This function does not take part in overload resolution if f can't be applied to the elements of t and/or ts and an integral constant. This function cannot be applied on kumi::records.

Parameters

f	Callable object to be invoked
t	kumi::product_type whose elements to be used as arguments to f
ts	Other kumi::product_type whose elements to be used as arguments to f

See also

kumi::for_each

Example

#include <kumi/kumi.hpp>
#include <iostream>
 
int main()
{
  auto t = kumi::tuple{ 1, 2.3, 0.43f };
 
  kumi::for_each_index( [](auto i, auto& m) { m += (i+1)*10; }
                      , t
                      );
 
  std::cout << t << "\n";
}