How to find the size of a variable without using sizeof

Question

Let us assume I have declared the variable \'i\' of certain datatype (might be int, char, float or double) ...

NOTE: Simply consider that \'i\' is

Answer 1

I hope that below code would solve your problem in c++ without using sizeof() operator

for any variables like (int, char, float, double, char, short and many more...)

here I take integer,

int a;

then show it as byte addressable output,

cout<<(char *)(&a + 1) - (char *)(&a);