CareerCup

#define sizeof_type( type ) (size_t)((type*)1000 + 1 )-(size_t)((type*)1000)

More precise way...

#define sizeof_macro(type_t) ((unsigned)((type_t *)0 + 1))

But this code is non-portable (Ref. C Ref Manual, by Steele and Harbision). We need to test this peace of code prerior to using in the application. offsetof also a non-portable macro.

*piece* of code...

*piece* of code...

*piece* of code...

#define My_Sizeof(type) ((char*)((type*)0 +1) - (char*)(type*)0)

This works, I have checked on VC++ compiler

None of the above macros would work if they are used with type 'void'

Really do they ask such rocket science :p

what something like this

int main()
{
char a;
int n;
if(n=((char*)(&a+1)-(char*)&a))
if(n==4)
printf("it is integer");
else if(n==1)
printf("it is char");
// and so on

return 0;
}


its working dear

#define sizeof(X) (((char *)((X *)0) + 1)) - ((char *)((X *)0)))

#define my_sizeof(p) ((char*)(&p+1) - (char*)(&p))

Yahoo.. bleh.

The question explains why Yahoo had to use Bing to power its search results and why no one uses Yahoo mail.