pointer default value .?

Question

Look,

  typedef struct jig 
   { 
         int *a;
         int *b;
   }temp;

now stage 1 :

temp *b;
b= (         


        

Answer 1

Chance, that's what's happening. Nobody says uninitialized, non-static memory needs to hold any value. Both could contain anything.

• In the first case it simply happened that malloc returned memory from an erased page (so it contains 0)
• In the second case there was stuff on the stack so the memory contains garbage