bit_unset

auto eve::bit_unset = functor<bit_unset_t>

inlineconstexpr

Header file

#include <eve/module/core.hpp>

Callable Signatures

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

Parameters

• x: argument.
• i: index to unset
• 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 0 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_unset(pi, 1)          = " << eve::bit_unset(pi, 1) << '\n';
  std::cout << "-> bit_unset(pi, 2)          = " << eve::bit_unset(pi, 2) << '\n';
  std::cout << "-> bit_unset(pi, 3)          = " << eve::bit_unset(pi, 3) << '\n';
  std::cout << "-> bit_unset(pi, 4)          = " << eve::bit_unset(pi, 4) << '\n';
  std::cout << "-> bit_unset(pi, 8)          = " << eve::bit_unset(pi, 8) << '\n';
  std::cout << "-> bit_unset[pi > 15](pi, 1) = " << eve::bit_unset[pi > 15](pi, 1) << '\n';
  std::cout << "-> bit_unset[pi > 15](pi, 2) = " << eve::bit_unset[pi > 15](pi, 2) << '\n';
  std::cout << "-> bit_unset[pi > 15](pi, 3) = " << eve::bit_unset[pi > 15](pi, 3) << '\n';
  std::cout << "-> bit_unset[pi > 15](pi, 4) = " << eve::bit_unset[pi > 15](pi, 4) << '\n';
  std::cout << "-> bit_unset[pi > 15](pi, 8) = " << eve::bit_unset[pi > 15](pi, 8) << '\n';
}