for_each()

template<typename Function , product_type Tuple, product_type... Tuples>
requires ( (compatible_product_types<Tuple, Tuples...>) && (_::supports_call<Function&, Tuple, Tuples...>))

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

inlineconstexpr

Applies the Callable object f on each element of a kumi::product_type. f is applied on the values if the given product_type is a kumi::record.

Note

This function does not take part in overload resolution if f can't be applied to the elements of t and/or ts.

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_index

Example

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

 
#include <kumi/kumi.hpp>
#include <iostream>
 
int main()
{
  using namespace kumi::literals;
 
  auto t = kumi::record{ "a"_f = 1, "b"_f = 2.3, "c"_f = 0.43f };
 
  kumi::for_each( [](auto& m) { m *= 10; }
                , t
                );
 
  std::cout << t << "\n";
}