Little Endian or Big Endian?

Question: Is your machine little or big endian?
Answer: Let first take a look at the solution before we discuss about it.
int isLittleEndian( void )
{
    unsigned int temp = 0x12345678;
    char * tempAddress = &temp;
    if( *tempAddress == 0x12 )
    {
        return 0; // Indicating False
    } else {
        return 1; // Indicating True
    }
}

To answer this, you have to obviously know what little and big endian are. Also you need some basic understanding of variable assignments for data types of varying sizes. A major mistake which you could make is with the temp variable. When I was asked this question, I answered it by taking a fixed address for temp which is insanely dangerous (I know I was dumb). The address could have been used for something else or even been a reserved address for all you know. By creating a local variable, temp will be placed on the stack so we don’t have to worry about whether it will be safe or not.

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