bit_set

auto eve::bit_set = functor<bit_set_t>

inlineconstexpr

Header file

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   // Regular overload
   constexpr auto bit_set(integral_value auto x, integral_value auto n)                          noexcept; // 1
 
   // Lanes masking
   constexpr auto bit_set[conditional_expr auto c](integral_value, auto x integral_value auto n) noexcept; // 2
   constexpr auto bit_set[logical_value auto m](integral_value auto x, integral_value auto n)    noexcept; // 2
}

Parameters

• x: argument.
• i: index to set
• c: Conditional expression masking the operation.
• m: Logical value masking the operation.

Return value

1. The value of the parameter is returned with the ith bit set to 1. If the index is out of range the call will assert.
2. The operation is performed conditionnaly.

Example

// revision 0
#include <eve/module/core.hpp>
#include <iostream>
 
int main()
{
  eve::wide pi = {1, 3, 7, 15, 31, 63, 127, 255};
 
  std::cout << "<- pi                      = " << pi << '\n';
  std::cout << "-> bit_set(pi, 1)          = " << eve::bit_set(pi, 1) << '\n';
  std::cout << "-> bit_set(pi, 2)          = " << eve::bit_set(pi, 2) << '\n';
  std::cout << "-> bit_set(pi, 3)          = " << eve::bit_set(pi, 3) << '\n';
  std::cout << "-> bit_set(pi, 4)          = " << eve::bit_set(pi, 4) << '\n';
  std::cout << "-> bit_set(pi, 8)          = " << eve::bit_set(pi, 8) << '\n';
  std::cout << "-> bit_set[pi > 15](pi, 1) = " << eve::bit_set[pi > 15](pi, 1) << '\n';
  std::cout << "-> bit_set[pi > 15](pi, 2) = " << eve::bit_set[pi > 15](pi, 2) << '\n';
  std::cout << "-> bit_set[pi > 15](pi, 3) = " << eve::bit_set[pi > 15](pi, 3) << '\n';
  std::cout << "-> bit_set[pi > 15](pi, 4) = " << eve::bit_set[pi > 15](pi, 4) << '\n';
  std::cout << "-> bit_set[pi > 15](pi, 8) = " << eve::bit_set[pi > 15](pi, 8) << '\n';
 
}