What is size of void , null , undefined ?

Answer 1

If this is c a void pointer can point to any type, but we don't know the type and therefore the size, this has a size of 1 by default. Any function that uses a void pointer should also have the size of the type as a variable, so the function can use the true size. You cannot​ look up the qsort prototype as an example. This can be used in c++, but templates provide a safer way to write generic functions.

Answer 2

Void indicates that function hasn’t return.

Answer 3

Size ? In wich language ?

Answer 4

Void is a type of a function, it hasn’t value ( no size ). Null and undifined , same.

Answer 5

then why sizeof(void) gives 1 byte

Answer 6

any