Question

What will be solution in the following code

Class A{}
void func(){}

printf("%d,%d",sizeof(A),sizeof(func));

Answer 1

Size of an empty class is non zero(most probably 1), so as to have two objects of the class at different addresses.

http://www2.research.att.com/~bs/bs_faq2.html#sizeof-empty explains it better

 class A{};
 void func(){}

 std::cout<<sizeof(A)<<std::endl<<sizeof(&func));// prints 1 and 4 on my 32 bit system