How do you determine the size of an object in C++?

Question

For example, say I have a class Temp:

class Temp
{
    public:
        int function1(int foo) { return 1; }
        void function2(int bar) { foobar = bar; }         


        

Answer 1

There's a utility call pahole (for 'Poke-A-HOLE') that's nominally intended to study how object layouts get padded, but is great for visualizing object size and layout in general.