negatenz

eve::negatenz = {}

inlineconstexpr

Computes the elementwise product of the first parameter by the never zero sign of the second.

Defined in Header

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   template< eve::value T, eve::value U >
   eve::common_compatible_t<T, U> negatenz(T x, U y) noexcept;
}

Parameters

• x, y: arguments.

Return value

The elementwise product of the first parameter by the never zero sign of the second is returned.

Example

#include <eve/module/core.hpp>
#include <eve/wide.hpp>
#include <iostream>
 
using wide_ft = eve::wide<float, eve::fixed<8>>;
 
int main()
{
  wide_ft pf = {0.0f, -0.0f, 0.0f, -2.0f, 2.0f, -2.0f, 2.0f, -2.0f};
 
  wide_ft qf = {4.0f, 4.0f, -4.0f, -4.0, 0.0f, 0.0f, -0.0f,  -0.0f};
 
  std::cout << "---- simd" << '\n'
            << "<- pf                         = " << pf << '\n'
            << "<- qf                         = " << qf << '\n'
            << "-> negatenz(pf, qf)           = " << eve::negatenz(pf, qf) << '\n';
 
  float xf = 4.0f;
  float yf = -0.0f;
 
  std::cout << "---- scalar" << '\n'
            << "<- xf               = " << xf << '\n'
            << "<- yf               = " << yf << '\n'
            << "-> negatenz(xf, yf) = " << eve::negatenz(xf, yf) << '\n';
  return 0;
}

Semantic Modifiers

• Masked Call

  The call eve::negatenz[mask](x, ...) provides a masked version of negatenz which is equivalent to if_else(mask, negatenz(x, ...), x) Example