is_flint

eve::is_flint = {}

inlineconstexpr

Returns a logical true if and only if the element value is a floating value representing an integer.

Defined in Header

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   template< eve::floating_value T >
   eve::as_logical<T> is_flint(T x) noexcept;
}

Parameters

• x : argument.

Return value

The call eve;is_flint[mask](x) is semantically equivalent to: eve::is_eqz (eve::frac (x));

This means that x is a floating real value representing an integer (flint is a shortcut for 'floating integer').

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, 1.0f, -1.5f, -2.0f, eve::valmax(eve::as<float>()),
                eve::inf(eve::as<float>()), eve::maxflint(eve::as<float>())*2, eve::nan(eve::as<float>())};
 
  std::cout << "---- simd" << '\n'
            << "<- pf                      = " << pf << '\n'
            << "-> is_flint(pf)            = " << eve::is_flint(pf) << '\n';
 
  float xf = 1.0f;
 
  std::cout << "---- scalar" << '\n'
            << "<- xf                      = " << xf << '\n'
            << "-> is_flint(xf)            = " << eve::is_flint(xf) << '\n';
  return 0;
}

Semantic Modifiers

• Masked Call

  The call eve;is_flint[mask](x) provides a masked version of eve::is_flint which is equivalent to if_else (mask, is_flint(x), eve::false( eve::as(x))).

  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, 1.0f, -1.5f, -2.0f, eve::valmax(eve::as<float>()),
                  eve::inf(eve::as<float>()), eve::maxflint(eve::as<float>())*2, eve::nan(eve::as<float>())};
   
    std::cout << "---- simd" << '\n'
              << "<- pf                      = " << pf << '\n'
              << "-> is_flint[pf > 0](pf)    = " << eve::is_flint[pf > 0](pf) << '\n';
    return 0;
  }