Re: [boost] the best possible c++ properties (implementation).

Subject: Re: [boost] the best possible c++ properties (implementation).
From: James Porter (porterj_at_[hidden])
Date: 2010-03-01 16:00:57

On 3/1/2010 2:10 PM, Christopher Jefferson wrote:
>> Presumably each "int" now has 2 member function pointers.   Thus 4 bytes becomes 20 bytes (best case, 64 bit ptrs) and more on
>> compilers that have bigger member function pointers.
>
> What exactly do you mean?

In order for a property ("Age" in the original example) to be able to 
reference other properties/members of its containing class, it needs a 
pointer to the object containing it.

But now that I re-read Daniel's message, maybe he's suggesting that 
you'd have to have:

struct foo {
   int data;
   int (*getter)();
   void (*setter)(int);
};

which is certainly unnecessary if you're being smart with templates.

- Jim