test.c

   1 #define ENDIANNESS_DEBUG
   2 #include "endianness.h"
   3
   4 #include <stdio.h>
   5
   6 int main() {
   7
   8 #if ENDIANNESS_LE
   9 #    define STR "little"
  10 #elif ENDIANNESS_BE
  11 #    define STR "big"
  12 #else
  13 #    error "unknown endianness"
  14 #endif
  15
  16         puts("this program was compiled for " STR " endian");
  17
  18         if(ENDIANNESS_LE) {
  19                 puts("yes, the endianness is little!");
  20         } else if(ENDIANNESS_BE) {
  21                 puts("yes, the endianness is BIG!");
  22         } else {
  23                 puts("this code will never be reached!");
  24         }
  25
  26 }