as_value

callable_as_value_ eve::as_value = {}

inlineconstexpr

Defined in Header

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   template< eve::value From, eve::value T >
   T as_value(From x, eve::as<T> t) noexcept;
}

Parameters

• x: either something convertible to T or an of eve constant
• t : Type wrapper instance embedding the type of the constant.

Return value

The call eve::as_value(as<T>()) returns a value of type T which is the conversion of x to type Target or the the eve constant of type Target.

Example

#include <eve/module/core.hpp>
#include <eve/wide.hpp>
#include <iostream>
 
using wide_ft = eve::wide<float, eve::fixed<4>>;
using wide_it = eve::wide<int16_t, eve::fixed<4>>;
 
int main()
{
  std::cout << "---- simd" << '\n'
            << "<- as_value(pf, as<wide_ft>())      = " << eve::as_value(32.5, eve::as<wide_ft>()) << '\n'
            << "<- as_value(valmax, as<wide_it>())  = " << eve::as_value(eve::valmax, eve::as<wide_it>()) << '\n'
    ;
 
  double        xf = -62768.0f;
 
  std::cout << "---- scalar" << '\n'
            << "<- as_value(xf, as<float>())        = " << eve::as_value(xf, eve::as<float>()) << '\n'
            << "<- as_value(xf, as<int16_t>())      = " << eve::as_value(xf, eve::as<int16_t>()) << '\n';
 
  return 0;
}