dot

auto eve::dot = functor<dot_t>

inlineconstexpr

Warning

This is not a reduction ! For reals the dot product is the product

Header file

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   constexpr auto dot(auto value x, auto value y) noexcept;
}

Parameters

• x, y : value arguments.
• c: Conditional expression masking the operation.
• m: Logical value masking the operation.

Return value

dot product. For values it is just the product.

Example

// revision 0
#include <eve/module/core.hpp>
#include <iostream>
 
int main()
{
  eve::wide wf0{0.0, 1.0, 2.0, 3.0, -1.0, -2.0, -3.0, -4.0};
  eve::wide wf1{0.0, -4.0, 1.0, -1.0, 2.0, -2.0, 3.0, -3.0};
  eve::wide wi0{0, 1, 2, 3, -1, -2, -3, -4};
  eve::wide wi1{0, -4, 1, -1, 2, -2, 3, -3};
  eve::wide wu0{0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u};
  eve::wide wu1{7u, 6u, 5u, 4u, 3u, 2u, 1u, 0u};
 
  std::cout << "<- wf0           = " << wf0 << "\n";
  std::cout << "<- wf1           = " << wf1 << "\n";
  std::cout << "<- wi0           = " << wi0 << "\n";
  std::cout << "<- wi1           = " << wi1 << "\n";
  std::cout << "<- wu0           = " << wu0 << "\n";
  std::cout << "<- wu1           = " << wu1 << "\n";
                                 
  std::cout << "-> dot(wf0, wf1) = " << eve::dot(wf0, wf1) << "\n";
  std::cout << "-> dot(wu0, wu1) = " << eve::dot(wu0, wu1) << "\n";
  std::cout << "-> dot(wi0, wi1) = " << eve::dot(wi0, wi1) << "\n";
}