endian_func.hpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef ENDIAN_FUNC_HPP
#define ENDIAN_FUNC_HPP
 
#include "bitmath_func.hpp"
 
static constexpr uint16_t FROM_BE16(uint16_t x)
{
  if constexpr (std::endian::native == std::endian::big) return x;
  return std::byteswap(x);
}
 
static constexpr uint32_t FROM_BE32(uint32_t x)
{
  if constexpr (std::endian::native == std::endian::big) return x;
  return std::byteswap(x);
}
 
static constexpr uint16_t TO_BE16(uint16_t x)
{
  if constexpr (std::endian::native == std::endian::big) return x;
  return std::byteswap(x);
}
 
static constexpr uint32_t TO_BE32(uint32_t x)
{
  if constexpr (std::endian::native == std::endian::big) return x;
  return std::byteswap(x);
}
 
static constexpr uint16_t FROM_LE16(uint16_t x)
{
  if constexpr (std::endian::native == std::endian::little) return x;
  return std::byteswap(x);
}
 
static constexpr uint32_t FROM_LE32(uint32_t x)
{
  if constexpr (std::endian::native == std::endian::little) return x;
  return std::byteswap(x);
}
 
static constexpr uint16_t TO_LE16(uint16_t x)
{
  if constexpr (std::endian::native == std::endian::little) return x;
  return std::byteswap(x);
}
 
static constexpr uint32_t TO_LE32(uint32_t x)
{
  if constexpr (std::endian::native == std::endian::little) return x;
  return std::byteswap(x);
}
 
#endif /* ENDIAN_FUNC_HPP */