cartesian_product()

template<product_type... Ts>

constexpr auto kumi::cartesian_product ( Ts &&...  ts )

constexpr

Return the Cartesian Product of all elements of its arguments product types.

Parameters

ts	Tuples to process

Returns

a tuple containing all the tuple build from all combination of all ts' elements

Helper type

namespace kumi
{
  template<product_type... Tuples> struct cartesian_product;
 
  template<product_type... Tuples>
  using cartesian_product_t = typename cartesian_product<Tuples...>::type;
}

Computes the type returned by a call to kumi::cartesian_product.

Example:

 
#include <kumi/tuple.hpp>
#include <iostream>
 
int main()
{
  auto status = kumi::tuple{true, false};
  auto id     = kumi::tuple{'a','b','c'};
  auto value  = kumi::tuple{1.0,2.1,4.2,8.4};
 
  auto r = kumi::cartesian_product( status, id, value );
 
  kumi::for_each_index( [](auto i, auto e)
                        {
                          std::cout << "# "  << i
                                    << ":"  << std::boolalpha
                                    << e    << "\n";
                        }
                      , r
                      );
}