rol implementation that trigger use of x86 ROL intrinsic

rol.cpp

#include <cstdint>

std::uint64_t rotl32c (std::uint64_t x, std::uint64_t n)
{
  return (x<<n) | (x>>(-n&63));
}

std::uint32_t rotl32c (std::uint32_t x, std::uint32_t n)
{
  return (x<<n) | (x>>(-n&31));
}

std::uint16_t rotl32c (std::uint16_t x, std::uint16_t n)
{
  return (x<<n) | (x>>(-n&15));
}

std::uint8_t rotl32c (std::uint8_t x, std::uint8_t n)
{
  return (x<<n) | (x>>(-n&7));
}