uint32_t endianness swap

code.cc

	constexpr auto byte_swap_32bit(uint32_t bytes)
	{
		return (uint32_t)(bytes << 16) | (uint32_t)(bytes >> 16);
	}

	constexpr auto to_array_32bit(uint32_t bytes)
	{
		return PTL::Array<uint8_t, 4>((uint8_t)((uint32_t)(bytes & 0xff000000) >> 24),
									  (uint8_t)((uint32_t)(bytes & 0x00ff0000) >> 16),
									  (uint8_t)((uint32_t)(bytes & 0x0000ff00) >> 8),
									  (uint8_t)((uint32_t)(bytes & 0x000000ff)));
	}

	constexpr auto endianness_swap_32bit(uint32_t bytes)
	{
		return 0x10000 * ((uint32_t)(byte_swap_16bit((uint16_t)((bytes & 0x0000ffff))))) + (uint32_t)(byte_swap_16bit((uint16_t)((uint32_t)((bytes & 0xffff0000)) >> 16)));
	}