#include <iostream>
using namespace std;

int little_endian_TO_big_endian(int i) { 
	return((i&0xff)<<24)
		+((i&0xff00)<<8)
		+((i&0xff0000)>>8)
		+((i>>24)&0xff); }
 
int main() { 

union { 
	short s; 
	char c[sizeof(short)];
} un; 

int array[3] = {0x0A0B0C0D, 0x0, 0x0};
array[1] = little_endian_TO_big_endian(array[0]);
array[2] = little_endian_TO_big_endian(array[1]);

cout << "sizeof(short) = " << sizeof(short) << endl;
un.s = 0x0102;   // Annahme sizeof(short) = 2
if(un.c[0] == 1 && un.c[1] == 2) 
	cout << "big-endian" << endl; 
else if(un.c[0] == 2 && un.c[1] == 1) 				
	cout << "little-endian" << endl; 
else 
	cout << "unknown" << endl; 
return(0); 
}