common/endiantest.h

   1 #ifndef AL_ENDIANTEST_H
   2 #define AL_ENDIANTEST_H
   3
   4 #if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__)
   5 #define IS_LITTLE_ENDIAN (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
   6 #else
   7 static const union {
   8     unsigned int u;
   9     unsigned char b[sizeof(unsigned int)];
  10 } EndianTest = { 1 };
  11 #define IS_LITTLE_ENDIAN (EndianTest.b[0] == 1)
  12 #endif
  13
  14 #endif /* AL_ENDIANTEST_H */