zip

auto eve::zip = functor<zip_t>

inlineconstexpr

Defined in Header

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   constexpr auto zip(scalar_value auto... parts)               noexcept; //1
   constexpr auto zip(as<Target> t, scalar_value auto... parts) noexcept; //2
   constexpr auto zip()(simd_value auto... parts)               noexcept; //3
   constexpr auto zip(as<Target> t, simd_value auto... parts)   noexcept; //4
}

Parameters

• parts: Variadic list of value to zip together.
• t: Type wrapper instance embedding the type to construct from parts.

Return value

1. a kumi::tuple made from all the scalars passed as argument.
2. a Target instance made from all the scalars passed as argument.
3. a kumi::tuple made from all the SIMD values passed as argument.
4. a Target instance made from all the SIMD values passed as argument.

Example

// revision 1
#include <eve/module/core.hpp>
#include <iostream>
 
struct data_block : eve::struct_support<data_block, float, std::int16_t,double>
{
  friend std::ostream& operator<<(std::ostream& os, data_block const& d)
  {
    return os << "{" << get<0>(d) << " x " << get<1>(d) << " - " << get<2>(d) << "}";
  }
};
 
int main()
{
 
  using card_t = eve::cardinal_t<eve::wide<double>>;
  eve::wide<double> wd = [](auto i, auto) { return 1.25 * (i+1); };
 
  eve::wide<float       , card_t> wf = [](auto i, auto) { return 1.f/(1+i); };
  eve::wide<std::int16_t, card_t> wi = [](auto i, auto) { return i+1; };
 
  std::cout << "-> zip(wf0,wi,wd)                       = " << eve::zip(wf,wi,wd)  << std::endl;
  std::cout << "-> zip(eve::as<data_block>(),wf,wi,wd)) = " << eve::zip(eve::as<data_block>(),wf,wi,wd)  << std::endl;
}