Write a program to test endianess of storage.

Question

Yang LIU · Accepted Answer

#define LITTLE_ENDIAN 0
#define BIG_ENDIAN    1

int EndiannessTest()
{
   int i = 1;
   char *p = (char *) &i;
   if (p[0] == 1) // Lowest address contains the least significant byte
      return LITTLE_ENDIAN;
   else
      return BIG_ENDIAN;
}

Sigiloso · Answer

use union property to judge if it is big endian or little endian.

Sigiloso · Answer

I described a method that placed a 1 byte word into a 2 byte address. If the word was matched in the upper MSB, it was Big endian, otherwise small endian.

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