E.V.E
v2023.02.15
 
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◆ lohi

auto eve::lohi = functor<lohi_t>
inlineconstexpr

Header file

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
constexpr auto lohi(value auto x) noexcept;
}
The concept value<T> is satisfied if and only if T satisfies either eve::scalar_value or eve::simd_va...
Definition value.hpp:34
constexpr auto lohi
elementwise_callable computing the the lohi pair of values.
Definition lohi.hpp:69
EVE Main Namespace.
Definition abi.hpp:18

Parameters

Return value

  • Computes the elementwise the lower and higher parts of the input values, as a pair of unsigned integers of half size
  • The call [l, h] = lohi(x) is_semantically equivalent to l = lo(x); h = hi(x);

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 wi0{0, 1, 2, 3, -1, -2, -3, -4};
eve::wide wu0{0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u};
std::cout << "<- wf0 = " << wf0 << "\n";
std::cout << "<- wi0 = " << wi0 << "\n";
std::cout << "<- wu0 = " << wu0 << "\n";
std::cout << "-> lo(wf0) = " << eve::lo(wf0) << "\n";
std::cout << "-> lo(wu0) = " << eve::lo(wu0) << "\n";
std::cout << "-> lo(wi0) = " << eve::lo(wi0) << "\n";
}
constexpr auto lo
Computes the least significant half of each lane.
Definition lo.hpp:73
Wrapper for SIMD registers.
Definition wide.hpp:70