Showing Big/Little Endian?

Question

I need to write a small C program to demonstrate that the UNIX operating system is using Big Endian, and the MS-Windows/DOS system is using Little Endian. I'm having trouble putting my thoughts into code (beginner coder) but I'm assuming I can load a 32 bit word into an address and just check where the LSB is, but then again I'm still a beginner.

Can anyone help me out?

possible duplicate of [C program to check little vs. big endian](http://stackoverflow.com/questions/12791864/c-program-to-check-little-vs-big-endian) — Étienne, Sep 26 '13 at 13:48

score 3 · Answer 1 · answered Sep 26 '13 at 13:48

3

#include <stdio.h>

int main() 
{
   unsigned int i = 1;

   char *c = (char*)&i;

   if (*c) {  
       printf("Little endian");
   } else {
       printf("Big endian");
   }

   getchar();

   return 0;
}

answered Sep 26 '13 at 13:48

Roy Dictus

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`printf ("%s endian\n", *c ? "Little" : "Big");` – KevinDTimm Sep 26 '13 at 13:50

Showing Big/Little Endian?

1 Answers1