#include <bits/byteswap.h> /* __bwap_{16,32} */

/*
  Basically, does:
uint32_t swap_uint32 ( uint32_t num )
{
	return  ( (num>>24) & 0x000000ff) |    // move byte 3 to byte 0
		( (num<<8)  & 0x00ff0000) |   // move byte 1 to byte 2
		( (num>>8)  & 0x0000ff00) |     // move byte 2 to byte 1
		( (num<<24) & 0xff000000); // byte 0 to byte 3
}

uint16_t swap_uint16 ( uint16_t num )
{
	//          Move UP and mask    | Move DOWN and mask
	return( (num<<8) & 0xff00 ) | ( (num>>8) & 0x00ff ); 
}
*/