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5. What is little endian & big endian. How you will identify little endian machine.

Answer:

Little and big endian are two ways of storing multibyte data-types ( int, float, etc). In little endian machines, last byte of binary representation of the multibyte data-type is stored first. On the other hand, in big endian machines, first byte of binary representation of the multibyte data-type is stored first.


#include <stdio.h> 
int main()  
{ 
   unsigned int i = 1; 
   if(char*)&i) 
       printf("Little endian"); 
   else
       printf("Big endian"); 
   return 0; 
}

Amit
9 Jul, 2018 10:19 AM

Little and big endian are two ways of storing multibyte data-types ( int, float, etc). In little endian machines, last byte of binary representation of the multibyte data-type is stored first. On the other hand, in big endian machines, first byte of binary representation of the multibyte data-type is stored first.


#include <stdio.h> 
int main()  
{ 
   unsigned int i = 1; 
   if(char*)&i) 
       printf("Little endian"); 
   else
       printf("Big endian"); 
   return 0; 
}