Write a function that if run on different systems that tells the endianess of the system

Write a single function that if run on different systems that tells if it is little endian or big endian.

/** @return True if this machine has little endian byte order */
bool isLittleEndian() {
  int i = 1;
  char *c = &i; // get the address of i

  // true if the first byte contains the least significant byte
  return (*c == 1);
}

Note: bit shifts and masking do not work because they should work the same way on every system.