popcount

auto eve::popcount = functor<popcount_t>

inlineconstexpr

Header file

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   constexpr auto popcount(unsigned_value auto x) noexcept;
}

Parameters

• x: unsigned argument.

Return value

The value of number of bits set in the value x is returned.

Example

// revision 0
#include <eve/module/core.hpp>
#include <iostream>
 
int main()
{
  eve::wide wu0{0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u};
 
  std::cout << "<- wu0           = " << wu0 << "\n";
                                 
  std::cout << "-> popcount(wu0) = " << eve::popcount(wu0) << "\n";
}