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This question is about endian machine. As we know x86 is little endian machine. Sparc is big endian or bi endian machine. You need talk recruiter this point at first. Then write code to define machine's endian.

#include <iostream>
using namespace std;

#define BIG_ENDIAN 0
#define LITTLE_ENDIAN 1

int TestByteOrder(){
short int word = 0x0001;
char *byte = (char*)&word;
return(byte[0] ? LITTLE_ENDIAN : BIG_ENDIAN);
}

int main(){
cout<< TestByteOrder() << endl;
return 0;
}

Can anyone explain this code?

int a = 1;
char *c;
c = &a;
if(*c == 1)
{
printf("LITTLE ENDIAN");
}
else
{
printf("BIG ENDIAN");
}