Re: [boost] serialization: buffers

From: Darren Cook (darren_at_[hidden])
Date: 2004-09-28 19:10:54

>>class Example{
>>int str[BSize];
>>int *p;
>>};
> ....
> Or you might try the following (non-portable) idea
> 
> 	ar & BOOST_SERIALIZATION_NVP(
> 		make_binary_object(str, (p - str)* sizeof(int))
> 	);

Thanks, that is closest to what I was after; I don't need a portable version 
here.

> But really, I think you might be best off replacing the class above with
> 
> class Example {
> 	std::slist<int> str; // or maybe std::vector<int> str }

It was done using a fixed size buffer to avoid dynamic memory allocation 
(mainly for speed reasons). Serializing is relatively rare, but when it 
happens there will be a very large number of objects so I didn't want the 
full BSize elements stored.

However as I worked through the class some more I found it can output a 
string representation, which uses fewer bytes. So in future I might add a 
parser for input and then switch to using that (though I'll be back to 
needing separate load/save functions then won't I, oh well :-).

Darren